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Denver Parks & Recreation Standard Specs Updated: January 2018 Editable Sections in DPR Specifications – Reference **Note: This document is intended to be used as a reference guide to the specifications. Each editable section in the individual specification sections is identified in this document. This will help to quickly identify each specification section that has text that will need to be changed or selected as part of the design process to help ensure that the specifications and contract drawings are the same. This document will also help City Project Managers quickly review and verify that these sections have been edited. SECTION 01 11 00 - SUMMARY OF WORK PART 1 – GENERAL 1.4 DESCRIPTION OF WORK ***REVISE AS NEEDED TO SUIT PROJECT*** The following work items are included in these specifications: [Insert description of work here] as listed in the Table of Contents of these specifications and as shown per the Contract Drawings. The materials and installation methods specified herein are to be considered standard for all work ordered by and performed for the Department of Parks and Recreation in the construction of new facilities in the parks. SECTION 01 50 00 – TEMPORARY FACILIITES PART 1 – GENERAL 1.2 SUMMARY B. Construction Field Office, Yards, and Storage Areas: ***EDIT THE FOLLOWING LIST AS NECESSARY TO REFLECT PROJECT CONDITIONS*** 2. [The Contractor shall provide a Construction Field Office to include the following items:]

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Page 1:  · Web viewMix one-part portland cement to one and one-half parts fine sand with a one-to one (1:1) mixture of bonding admixture and water. Add white portland cement in amounts determined

Denver Parks & RecreationStandard Specs

Updated: January 2018

Editable Sections in DPR Specifications – Reference

**Note: This document is intended to be used as a reference guide to the specifications. Each editable section in the individual specification sections is identified in this document. This will help to quickly identify each specification section that has text that will need to be changed or selected as part of the design process to help ensure that the specifications and contract drawings are the same. This document will also help City Project Managers quickly review and verify that these sections have been edited.

SECTION 01 11 00 - SUMMARY OF WORK

PART 1 – GENERAL

1.4 DESCRIPTION OF WORK***REVISE AS NEEDED TO SUIT PROJECT***The following work items are included in these specifications: [Insert description of work here] as listed in the Table of Contents of these specifications and as shown per the Contract Drawings. The materials and installation methods specified herein are to be considered standard for all work ordered by and performed for the Department of Parks and Recreation in the construction of new facilities in the parks.

SECTION 01 50 00 – TEMPORARY FACILIITES

PART 1 – GENERAL

1.2 SUMMARY

B. Construction Field Office, Yards, and Storage Areas:***EDIT THE FOLLOWING LIST AS NECESSARY TO REFLECT PROJECT CONDITIONS***

2. [The Contractor shall provide a Construction Field Office to include the following items:]

PART 3 – EXECUTION***EDIT THE FOLLOWING SERVICES BASED ON PROJECT NEEDS***

SECTION 01 56 39 - TREE RETENTION AND PROTECTION

PART 4- MEASUREMENT AND PAYMENT

4.1 MEASUREMENT [Consultant to select A or B]

A. Measurement will be based on the percentage complete for the lump sum contract amount for Tree Retention and Protection.

B. Measurement will be made by the contract unit specified for Tree Retention and Protection.  Measurement shall include the actual number of units of specified material(s) placed and accepted at

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Denver Parks & RecreationStandard Specs

Updated: January 2018the locations shown on the Contract Drawings, or as directed by the Project Manager, and in accordance with the Specifications.

4.2 PAYMENT

A. Payment will be made at the [contract unit] [lump sum contract] price, and shall include required materials, transportation, equipment, and labor, <Insert additional items> required to establish tree protection, and remove the tree protection at the end of the project as required in accordance with the Contract Drawings and Specifications. Payment will also include the maintenance of the tree protection throughout the duration of the project as well as the labor, materials and equipment required to restore the site to its original condition at the completion of the project.

***REVISE AS NEEDED, AND AS DIRECTED BY THE PROJECT MANAGER***

SECTION 01 57 13 - EROSION AND SEDIMENTATION CONTROL

PART 1 – GENERAL

1.2 SUMMARY

B. Refer to applicable sections within the ***LIST APPLICABLE SECTIONS OF THE DOCUMENT*** Wastewater Capital Projects Management Standard Construction Specifications, Wastewater Management Division, Department of Public Works, specifications updated March 2016, or latest edition.

PART 4- MEASUREMENT AND PAYMENT

4.1 MEASUREMENT [Consultant to select A or B]

A. Measurement will be based on the percentage complete for the lump sum contract amount for Erosion and Sedimentation Control.

B. Measurement will be made by the contract unit specified for Erosion and Sedimentation Control.  Measurement shall include the actual number of units of specified material(s) placed and accepted at the locations shown on the Contract Drawings, or as directed by the Project Manager, and in accordance with the Specifications.

4.2 PAYMENT

A. Payment will be made at the [contract unit] [lump sum contract] price, and shall include required materials, transportation, equipment, labor, excavation, stockpiling, disposing, hauling off, watering, dust control, <Insert additional items> as required in accordance with the Contract Drawings and Specifications. The contract price shall include all material, labor and equipment required to establish and maintain specified erosion and sedimentation controls prior to and during construction. The contract price shall include removal of erosion and sedimentation controls after final stabilization.

***REVISE AS NEEDED, AND AS DIRECTED BY THE PROJECT MANAGER***

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Denver Parks & RecreationStandard Specs

Updated: January 2018SECTION 02 41 00 – DEMOLITION

PART 1 – GENERAL

1.2 SUMMARY

A. This Section includes the requirements for demolition and removal of:***EDIT THE FOLLOWING LIST TO REFLECT SPECIFIC PROJECT CONDITIONS***

1.3 DEFINITIONS***EDIT FOLLOWING LIST AS NECESSARY TO REFLECT PROJECT CONDITIONS***

1.5 PRE-CONSTRUCTION MEETINGS***EDIT FOLLOWING LIST AS NECESSARY TO REFLECT PROJECT CONDITIONS***

F. Agenda Items***INSERT AGENDA ITEMS***

1.6 INFORMATIONAL SUBMITTALS***RETAIN "PROPOSED PROTECTION MEASURES" PARAGRAPH BELOW IF SELECTIVE DEMOLITION OPERATIONS OCCUR ADJACENT TO OCCUPIED SPACES AND AN INFORMATIONAL SUBMITTAL IS REQUIRED. ***

A. Proposed Protection Measures: Submit report, including drawings, that indicates the measures proposed for protecting individuals and property [, for environmental protection] [, for dust control] [and] [, for noise control]. Indicate proposed locations and construction of barriers.

1.7 CLOSEOUT SUBMITTALS

A. INVENTORY***RETAIN “LANDFILL RECORDS” PARAGRAPH BELOLW IF APPLICABLE LANDFILL RECORDS MAY BE REQUIRED BY THE CITY WHEN DISCARDED DEMOLISHED MATERIALS CONTAIN HAZARDOUS WASTE***

PART 3 – EXECUTION

3.2 DEMOLITION***EDIT FOLLOWING LIST AS NECESSARY TO REFLECT PROJECT CONDITIONS***

PART 4- MEASUREMENT AND PAYMENT

4.1 MEASUREMENT [Consultant to select A or B]

A. Measurement will be based on the percentage complete for the lump sum contract amount for Demolition.

B. Measurement will be made by the contract unit specified for Demolition. Measurement shall include the actual number of units of specified material(s) removed or placed and accepted at the locations shown on the Contract Drawings, or as directed by the Project Manager, and in accordance with the Specifications.

4.2 PAYMENT

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Denver Parks & RecreationStandard Specs

Updated: January 2018A. Payment will be made at the [contract unit] [lump sum contract] price and shall include

required materials, transportation, equipment, labor, excavation, stockpiling, disposing, hauling off, watering, dust control, erosion and sediment control, <Insert additional items> as required in accordance with the Contract Drawings and Specifications. The price shall include sawing or otherwise effectively cutting the existing paving, curb and gutter or concrete pipe smoothly and squarely in a manner satisfactory to the Project Manager. The price shall include the removal and offsite disposal of all materials including any base course deemed unsuitable by the Project Manager. No payment will be made for the removal and/or replacement of any paving, curb and gutter or pipe sections damaged by the Contractor beyond the authorized limits of removal.

***REVISE AS NEEDED, AND AS DIRECTED BY THE PROJECT MANAGER***

SECTION 03 30 00 - CAST-IN-PLACE CONCRETE

PART 1 – GENERAL

1.4 QUALITY CONTROL

A. Pre-Construction Conference: Conduct conference at location approved by Project Manager.1. Before submitting design mixtures, review concrete design mixture and examine

procedures for ensuring quality of concrete materials. Require representatives of each entity directly concerned with cast-in-place concrete to attend, including the following:e. Special concrete finish subcontractor. ***DELETE IF NOT APPLICABLE***

PART 2 – PRODUCTS

2.2 STEEL REINFORCEMENT

H. Bar Supports: Bolsters, chairs, spacers, and other devices for spacing, supporting, and fastening reinforcing bars and welded wire reinforcement in place. Manufacture bar supports from steel wire, plastic, or precast concrete according to CRSI's "Manual of Standard Practice," of greater compressive strength than concrete and as follows:

***DELETE/EDIT THE FOLLOWING SUBSECTIONS TO REFLECT PROJECT CONDITIONS***

2.4 ADMIXTURES

C. Color Admixture: Color Pigment: ASTM C 979, synthetic mineral-oxide pigments or colored water-reducing admixtures; color stable, nonfading, and resistant to lime and other alkalis.1. Manufacturers : Subject to compliance with requirements, provide products by one of the

following:***DELETE/EDIT THE FOLLOWING SUBSECTIONS TO SUIT PROJECT***.

a. Davis Colors.b. Dayton Superior Corporation.c. Scofield, L. M. Company.d. [Consultant to specify manufacturer]

2. Color Match Architect’s Sample ***SPECIFY MANUFACTURER/COLOR***

2.5 CONCRETE MIX

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Denver Parks & RecreationStandard Specs

Updated: January 2018A. All Concrete mixes from the approved list or submitted for approval shall meet the following

criteria. ***EDIT THE FOLLOWING AS APPROPRIATE TO PROJECT REQUIREMENTS AND THE PROJECT MANAGER. ADD CONCRETE MIXES TO MEET THE REQUIREMENTS OF THE PROJECT***

1. Mix concrete in accordance with ASTM C94 and ACI 301 Chapter 3.2. Cement Content: Type II cement, minimum of five hundred twenty-eight (528) pounds

per cubic yard.3. Fly ash: Per CDOT Standard Specifications for Road and Bridge Construction Section

701.02. Fly ash shall not exceed twenty (20%) of total cementitious material by weight unless approved by the Project Manager.

4. Maximum water-cement ratio: 0.44.5. Slump: Four inches (4”) maximum when placed by hand.6. Air Entrainment: Five percent (5%) to eight percent (8%).7. Aggregate Size: three quarter inches (3/4”), maximum.8. Concrete for Footings, Walls, and Interior Slabs-on-Grade shall be Class B or Class D, as

approved by the Project Manager.

2.6 ACCESSORIES***DELETE/EDIT THE FOLLOWING SUBSECTIONS TO SUIT THE PROJECT***

A. Expansion Joints:1. Interior Use or Exterior Use Where Sealants are Specified: Bituminous saturated fiber

conforming to ASTM D1751, one half inch (1/2”) thick. Provide manufacturer’s certification of compatibility with specified sealants where required.

2. Exterior Use Where Sealants are not Specified: Pre-molded asphalt and fiber conforming to ASTM D994, one half inch (1/2”) thick.

3. Joint Sealant: Per CDOT’s approved joint and crack sealant list. Where concrete color additive is used, sealant color to match adjacent concrete.

B. Void Forms: Biodegradable paper surface, treated for moisture resistance, structurally sufficient to support weight of plastic concrete and other superimposed loads.

C. Chamfer Strips: Wood, metal, PVC, or rubber strips, shaped as sized on the drawings.

D. Rustication Strips: Wood, metal, PVC, or rubber strips, kerfed for ease of form removal.

E. Form Ties: Factory-fabricated, removable or snap-off metal or glass-fiber-reinforced plastic form ties designed to resist lateral pressure of fresh concrete on forms and to prevent spalling of concrete surface. ***EDIT THE FOLLOWING AS APPROPRIATE TO PROJECT REQUIREMENTS. CLARIFY THE FINAL TREATMENT OF FORM TIE HOLES IN SURFACE OF CONSTRUCTED ELEMENTS***

1. Furnish units that will leave no corrodible metal closer than two inches (2”) to the plane of exposed concrete surface, or as shown on the drawings.

2. Furnish ties that, when removed, will leave holes no larger than 1 inch (1”) in diameter in concrete surface.3. Furnish ties with integral water-barrier plates to walls indicated to receive damp proofing or waterproofing.

F. Spray Curing and Sealing Compound: White, Waterborne, Membrane-Forming ASTM C 1315, Type two (2), Class B, dissipating.

1. Products: [provide the following

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Denver Parks & RecreationStandard Specs

Updated: January 2018a. [Product]b. Or approved equal.

G. Bonding Agent: Latex bonding adhesive shall meet ASTM C 1059.

2.7 ANTI-GRAFFITI COATINGA. [Non-sacrificial anti-graffiti coating with five (5) year warranty minimum, or approved

equal.]

PART 3 – EXECUTION

3.1 FIELD QUALITY CONTROL

C. Ready-Mix-Concrete Manufacturer Qualifications: A firm experienced in manufacturing ready-mixed concrete products and that complies with ASTM C 94/C 94M requirements for production facilities and equipment. 1. [Manufacturer certified according to NRMCA’s “Certification of Ready Mixed

Concrete Production Facilities” (Quality Control Manual – Section 3, “Plant Certification Checklist”)]

3.3 FORMS

E. Form Tie Holes: Form tie holes are to be ***REVISE AS APPROPRIATE***[installed in locations shown on drawings] [filled with grout and finished to match adjacent concrete surface] [left exposed].

3.4 REMOVING AND REUSING FORMS

A. General: Formwork for sides of beams, walls, columns, and similar parts of the Work that does not support weight of concrete may be removed after cumulatively curing at not less than fifty degrees (50°) F for twenty four (24) hours after placing concrete. Concrete has to be hard enough to not be damaged by form-removal operations and curing and protection operations need to be maintained.***RETAIN OPTION IN FIRST SUBPARAGRAPH BELOW IF ADOPTING RECOMMENDATION OF ACI 347. ACI 301 REQUIRES CONCRETE TO REACH ITS SPECIFIED COMPRESSIVE STRENGTH***

1. Leave formwork for structural elements that supports weight of concrete in place until concrete has achieved at least seventy percent (70%) of its twenty eight (28) day design compressive strength.2. Remove forms only if shores have been arranged to permit removal of forms without loosening or disturbing shores.

3.5 SHORES AND RESHORES***REVIEW THIS ARTICLE WITH STRUCTURAL, PROJECT MANAGER AND REVISE TO MEET PROJECT REQUIREMENTS.***

A. Comply with ACI 318 (ACI 318M) and ACI 301 for design, installation, and removal of shoring and reshoring.1. Do not remove shoring or reshoring until measurement of slab tolerances is complete.

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Denver Parks & RecreationStandard Specs

Updated: January 2018

3.6 EMBEDDED ITEMS***SPECIFY EMBEDDED ITEMS AND ANCHORAGE DEVICES FOR OTHER WORK ATTACHED TO OR SUPPORTED BY CAST-IN-PLACE CONCRETE. INSERT SPECIFIC REQUIREMENTS FOR INSTALLING EMBEDDED ITEMS, IF ANY, THAT ARE PART OF THE WORK***

3.7 STEEL REINFORCEMENT***RETAIN THIS ARTICLE IF STEEL-REINFORCED CONCRETE PAVING IS REQUIRED, REVISE TO SUIT PROJECT***

A. Install steel reinforcement only in locations shown on the Contract Drawings.

B. General: Comply with CRSI’s “Manual of Standard Practice” for fabricating, placing, and supporting reinforcement.

C. Clean reinforcement of loose rust and mill scale, earth, ice, or other bond-reducing materials.

D. Arrange, space, and securely tie bars and bar supports to hold reinforcement in position during concrete placement. Maintain minimum cover to reinforcement. ***INSERT SPACING OF CONSTRUCTION JOINTS IN FIRST SUBPARAGRAPH BELOW IF PREFERRED***

3.9 CONCRETE FINISHING

C. Rubbed Finish: Apply the following to smooth-formed finished as cast concrete where indicated:***EDIT THE FOLLOWING PARAGRAPHS TO MATCH PROJECT REQUIREMENTS***

1. Smooth-Rubbed Finish: Not later than one day after form removal, moisten concrete surfaces and rub with carborundum brick or another abrasive until producing a uniform color and texture. Do not apply cement grout other than that created by the rubbing process.

2. Grout-Cleaned Finish: Wet concrete surfaces and apply grout of a consistency of thick paint to coat surfaces and fill small holes. Mix one-part portland cement to one and one-half parts fine sand with a one-to one (1:1) mixture of bonding admixture and water. Add white portland cement in amounts determined by trial patches so color of dry grout will match adjacent surfaces. Scrub grout into voids and remove excess grout. When grout whitens, rub surface with clean burlap and keep surface damp by spraying for at least thirty-six (36) hours.

3. Cork-Floated Finish: Wet concrete surfaces and apply a stiff grout. Mix one-part portland cement and one-part fine sand with a one-to-one (1:1) mixture of bonding agent and water. Add white portland cement in amounts determined by trial patches so color of dry grout will match adjacent surfaces. Compress grout into voids by grinding surface. In a swirling motion, finish surface with a cork float.

D. [Other formed surface treatments]***ADD OTHER FORMED SURFACE TREATMENTS OR DELETE SUBSECTION***

3.11 JOINTS

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Denver Parks & RecreationStandard Specs

Updated: January 2018***COORDINATE JOINT TYPES, DESCRIPTION, AND LOCATION WITH DRAWINGS. JOINT TYPES HAVE BEEN CONSOLIDATED IN THIS ARTICLE FOR CONSISTENCY RATHER THAN FOR STRICT SEQUENCE OF INSTALLATION.***

A. General: Construct joints true to line with faces perpendicular to surface plane of concrete.

B. Construction Joints: Install so strength and appearance of concrete are not impaired at locations indicated or as approved by the Project Manager.

1. Place joints perpendicular to main reinforcement. Continue reinforcement across construction joints unless otherwise indicated. Do not continue reinforcement through sides of strip placements of floors and slabs.

3.13 ANTI-GRAFFITI COATING***THIS ARTICLE IS FOR BASIC APPLICATION OF ANTI-GRAFFITI COATING. REVISE TO SUIT THE PROJECT***

A. Apply to surfaces/elements indicated on drawings. Install per manufacturer’s instructions following manufacturer-recommended concrete cure period.

3.14 CONCRETE SURFACE REPAIRS***THIS ARTICLE PROVICES BASIC APPLICATIONS FOR REPAIRING CONCRETE SURFACES. REVISE OR DELETE TO SUIT THE PROJECT***

A. Defective Concrete: Repair and patch defective areas when approved by the Project Manager. Remove and replace concrete that cannot be repaired and patched to the Project Manager's approval.

B. Patching Mortar: Mix dry-pack patching mortar, consisting of one-part portland cement to two and one-half parts fine aggregate passing a Number sixteen (#16) sieve, using only enough water for handling and placing. Achieve approval of the Project Manager prior to any patching as to location of patches and patch material.

C. Patch Testing: On a portion of the work which will, in the finished condition, be concealed, test patch materials and methods and obtain the Project Manager’s approval prior to patching concrete surfaces needing repair that will be visible in the final construction.

D. Repairing Formed Surfaces: Surface defects include color and texture irregularities, cracks, spalls, air bubbles, honeycombs, rock pockets, fins and other projections on the surface, and stains and other discolorations that cannot be removed by cleaning.

1. Immediately after form removal, cut out honeycombs, rock pockets, and voids more than one half inch (1/2”) in any dimension to solid concrete. Limit cut depth to three quarter inches (3/4”). Make edges of cuts perpendicular to concrete surface. Clean, dampen with water, and brush-coat holes and voids with bonding agent. Fill and compact with patching mortar before bonding agent has dried. Fill form-tie voids with patching mortar or cone plugs secured in place with bonding agent.

2. Repair defects on surfaces exposed to view by blending white portland cement and standard portland cement so that, when dry, patching mortar will match surrounding color and texture. Patch a test area at inconspicuous locations to verify mixture and color match before proceeding with patching. Compact mortar in place and strike off slightly higher than surrounding surface.

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Denver Parks & RecreationStandard Specs

Updated: January 20183. Repair defects on concealed formed surfaces that affect concrete's durability and

structural performance as determined by the Project Manager.

E. Repairing Unformed Surfaces: Test unformed surfaces, such tops of walls, for finish and verify surface tolerances specified for each surface. Correct low and high areas. Test surfaces sloped for trueness of slope and smoothness; use a sloped template.

1. After obtaining approval of the Project Manager, repair finished surfaces containing defects. Surface defects include spalls, popouts, honeycombs, rock pockets, crazing and cracks more than one-one hundredths inch (0.01”) wide or that penetrate to reinforcement or completely through unreinforced sections regardless of width, and other objectionable conditions.a. If, after repairs are complete, the Project Manager deems the repairs did

not successfully correct the original deficiencies, the pavement or concrete element in question is to be removed and replaced per Subsection 3.13. E.1. above.

2. After concrete has cured at least fourteen (14) days, test for low and high spots in finished surface. Areas that do not conform to the tolerances set forth in Division 32 and in other reference standards identified in this specification are to be sawcut to the nearest joint as approved by the Project Manager, defective concrete removed, and new conforming paving reinstalled. Color and finish is to match adjacent concrete.

3. If approved by the Project Manager, repair random cracks and single holes one inch (1”) or less in diameter with patching mortar. Groove top of cracks and cut out holes to sound concrete and clean off dust, dirt, and loose particles. Dampen cleaned concrete surfaces and apply bonding agent. Place patching mortar before bonding agent has dried. Compact patching mortar and finish to match adjacent concrete. Keep patched area continuously moist for at least seventy-two (72) hours.

F. Perform structural repairs of concrete, subject to the Project Manager’s approval, using epoxy adhesive and patching mortar.

G. Repair materials and installation not specified above may be used, subject to Project Manager approval.

PART 4- MEASUREMENT AND PAYMENT

4.1 MEASUREMENT [Consultant to select A or B]Measurement will be based on the percentage complete for the lump sum contract amount for Demolition.

A. Measurement will be made by the contract unit specified for Demolition.

B. Measurement shall include the actual number of units of specified materials(s) removed or placed and accepted at the locations shown on the Contract Drawings, or as directed by the Project Manager, and in accordance with the Specifications.

4.2 PAYMENT

A. Payment will be made at the [contract unit] [lump sum contract] price, and shall include required materials, transportation, equipment, labor, excavation, stockpiling, disposing, hauling

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Denver Parks & RecreationStandard Specs

Updated: January 2018off, watering, dust control, erosion and sediment control, <Insert additional items> as required in accordance with the Contract Drawings and Specifications. ***REVISE AS NEEDED, AND AS DIRECTED BY THE PROJECT MANAGER***

SECTION 31 11 00 - CLEARING AND GRUBBING

PART 1 – GENERAL

1.3 DEFINITIONS

F. Topsoil: Top layer of the soil profile consisting of existing native surface topsoil or existing in-place surface soil and is the zone where plant roots grow, and ; reasonably free of subsoil, clay lumps, gravel, and other objects more than two-inches (2”) in diameter; and free of subsoil and weeds, roots, toxic materials, or other non-soil materials.***RETAIN ONE OR BOTH OF FIRST TWO PARAGRAPHS TO MEET PROJECT REQUIREMENTS.***

1.4 SUBMITTALS

A. Existing Conditions: Documentation of existing conditions, adjoining construction, and site improvements that establishes preconstruction conditions that might be misconstrued as damage caused by site clearing.***REVISE SUBPARAGRAPHS BELOW AND INSERT ADDITIONAL REQUIREMENTS TO SUIT PROJECT.***1. Use sufficiently detailed photographs or videos.2. Include plans and notations to indicate specific damaged conditions of existing construction,

site elements, and landscape.

1.5. PROJECT CONDTIONS

C. Salvable Items: Carefully remove items indicated to be salvaged and store on City property where indicated.***INDICATE ITEMS TO BE SALVAGED ON DRAWINGS OR IN SCHEDULES***

PART 4 – MEASUREMENT AND PAYMENT

4.1 MEASUREMENT [Consultant to select A or B]

A. Measurement will be based on the percentage complete for the lump sum contract amount for Clearing and Grubbing.

B. Measurement will be made by the contract unit specified for Clearing and Grubbing.  Measurement shall include the actual number of units of specified material(s) removed and accepted at the locations shown on the Contract Drawings, or as directed by the Project Manager, and in accordance with the Specifications.

4.2 PAYMENT

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Denver Parks & RecreationStandard Specs

Updated: January 2018A. Payment will be made at the [contract unit] [lump sum contract] price, and shall include

required materials, transportation, equipment, labor. The lump sum price shall include all clearing and grubbing of miscellaneous debris or items defined in Part 1 - General, including all other work necessary to ensure a clear dirt surface remains on the site. Price shall include the removal and offsite disposal of all materials. No payment will be made for the removal of any brush and vegetation damaged by the Contractor beyond the authorized limits of removal.***REVISE AS NEEDED, AND AS DIRECTED BY THE PROJECT MANAGER***

SECTION 31 20 00 EARTH MOVING

PART 1 – GENERAL

1.1 RELATED DOCUMENTS

B. Related Report Documentation***EDIT LIST OF APPLICABLE DOCUMENTS***[List geotechnical or related documentation including dates, authorship, etc.]

1.3 DEFINITIONS

A. Excavation: The removal of material encountered to subgrade or over-excavation and subsequent disposal or placement of materials removed.***CLASSIFIED AND UNCLASSIFIED EXCAVATION CAN IMPACT THE BID PRICE AND UNIT PRICING OF A JOB. VERIFY HOW THE PROJECT MANAGER WANTS THIS TO BE BID. UNCLASSIFIED MEANS THE CONTRACTOR WILL REMOVE ANY SOIL HE/SHE ENCOUNTERS; CLASSIFIED GENERALLY PAYS EXTRA FOR AN ROCK EXCAVATION ENCOUNTERED. EDIT B & C BELOW ACCORDINGLY. USING CLASSIFIED IS GENERALLY BASED ON A GOOD GEOTECH REPORT WHICH IDENTIFIES PRESENCE OF ROCK THAT WILL NEED TO BE EXCAVATED.***

1. 4 SUBMITALS

C. Material Test Reports: For each on-site and borrow soil material proposed for fill and backfill as follows:1. Location of soil source.2. Classification according to ASTM D 2487.3. Laboratory compaction curve according to ASTM D 698.***ADD LABORATORY ANALYTICAL RESULTS FOR ENVIRONMENTAL CONCERNS, IF APPLICABLE.***

PART 2 – PRODUCTS

2.2 ACCESSORIES

A. Warning Tape: Acid- and alkali-resistant, polyethylene film warning tape manufactured for marking and identifying underground utilities, six-inches (6”) wide and four (4) mils thick, continuously inscribed with a description of the utility; colored as follows:***REVISE COLORS BELOW TO COMPLY WITH LOCAL PRACTICE OR REQUIREMENTS OF AUTHORITIES HAVING JURISDICTION.***

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Denver Parks & RecreationStandard Specs

Updated: January 20181. Red: Electric.2. Yellow: Gas, oil, steam, and dangerous materials.3. Orange: Telephone and other communications.4. Blue: Water systems.5. Green: Sewer systems.

B. Detectable Warning Tape: Acid- and alkali-resistant, polyethylene film warning tape manufactured for marking and identifying underground utilities, a minimum of six-inches (6”) wide and four (4) mils thick, continuously inscribed with a description of the utility, with metallic core encased in a protective jacket for corrosion protection, detectable by metal detector when tape is buried up to thirty-inches (30”) deep; colored as follows:***REVISE COLORS BELOW TO COMPLY WITH LOCAL PRACTICE OR REQUIREMENTS OF AUTHORITIES HAVING JURISDICTION. ***1. Red: Electric.2. Yellow: Gas, oil, steam, and dangerous materials.3. Orange: Telephone and other communications.4. Blue: Water systems.5. Green: Sewer systems.

PART 3 – EXECUTION

3.3 FIELD QUALITY CONTROL

B. ***ADD THE PROJECT’S MATERIAL MANAGEMENT PLAN, IF APPLICABLE***Allow testing agency to inspect and test subgrades and each fill or backfill layer. Proceed with subsequent earth moving only after test results for previously completed work comply with requirements.

***RETAIN FIRST PARAGRAPH BELOW IF APPLICABLE; REVISE TO SUIT PROJECT. IF RETAINING, ADD OTHER FIELD TESTS, SUCH AS CALIFORNIA BEARING RATIO OF SUBGRADES, AND BASES FOR PAVING, IF REQUIRED***

C. Footing Subgrade: At footing subgrades, at least one test of each soil stratum will be performed to verify design bearing capacities. Subsequent verification and approval of other footing subgrades may be based on a visual comparison of subgrade with tested subgrade when approved by the Project Manager.

D. Field tests will be performed at the following locations and frequencies at a minimum:***FREQUENCIES OF TESTING IN SUBPARAGRAPHS BELOW ARE EXAMPLES ONLY; REVISE TO SUIT PROJECT***1. Paved Areas: At subgrade and at each compacted fill and backfill layer, at least one test for

every two thousand (2,000) sq. ft. or less of paved area or building slab, but in no case fewer than three (3) tests.

2. Foundation Wall Backfill: At each compacted backfill layer, at least one test for every 50 feet (50’) or less of wall length, but no fewer than two tests.

3. Trench Backfill: At each compacted initial and final backfill layer, at least one test for every one hundred fifty feet (150’) or less of trench length, but no fewer than two tests.

4. Landscaped areas: At least one test every twenty thousand (20,000) sq. ft or less of disturbed landscaped area, but in no case fewer than two tests.

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Denver Parks & RecreationStandard Specs

Updated: January 20183.7 EVACUATION

C. Excavation for Pavements: Cut surface under pavements to comply with cross sections, elevations and grades as indicated within a tolerance of +/- one tenth (0.1’).of a foot.***RETAIN ONE OF TWO SUBSECTIONS BELOW, OR COORDINATE EXCAVATION APPROACH WITH THE PROJECT MANAGER***

RETAIN FIRST PARAGRAPH (D) IF EXCAVATION IS UNCLASSIFIED AND NO CHANGES IN THE CONTRACT SUM OR THE CONTRACT TIME WILL BE AUTHORIZED FOR ROCK EXCAVATION

RETAIN SECOND PARAGRAPH (E) IF EXCAVATION IS CLASSIFIED AND ADJUSTMENTS IN THE CONTRACT SUM AND, IF APPLICABLE, THE CONTRACT TIME WILL BE AUTHORIZED FOR ROCK EXCAVATION

D. Unclassified Excavation: Excavate to subgrade elevations regardless of the character of surface and subsurface conditions encountered. Unclassified excavated materials may include rock, soil materials, and obstructions. No changes in the Contract Sum or the Contract Time will be authorized for rock excavation or removal of obstructions.1. If excavated materials intended for fill and backfill include unsatisfactory soil materials

and rock, replace with satisfactory soil materials.2. Remove rock to lines and grades indicated to permit installation of permanent

construction without exceeding the following dimensions:***MEASUREMENTS IN SUBPARAGRAPHS BELOW ARE EXAMPLES ONLY; REVISE TO SUIT PROJECT CONDITIONS***

E. Classified Excavation: Excavate to subgrade elevations. Material to be excavated will be classified as earth and rock. Do not excavate rock until it has been classified and cross sectioned by the Project Manager and approved by the Project Manager. The Contract Sum will be adjusted for rock excavation according to unit prices included in the Contract Documents. Changes in the Contract Time may be authorized for rock excavation.1. Earth excavation includes excavating pavements and obstructions visible on surface;

underground structures, utilities, and other items indicated to be removed; together with soil, boulders, and other materials not classified as rock or unauthorized excavation.a. Intermittent drilling; ram hammering; or ripping of material not classified as rock

excavation is earth excavation. 2. Rock evacuation includes removal and disposal of rock. Remove rock to lines and

subgrade elevations indicated to permit installation of permanent construction without exceeding the following dimensions:

***MEASURE IN SUBPARAGRAPHS BELOW ARE EXAMPLES ONLY; REVISE TO SUIT PROJECT CONDITIONS***

3.8 EXCAVATION FOR STRUCTURES***REVISE TOLERANCES IN THIS ARTICLE TO SUIT OFFICE PRACTICE IF APPLICABLE***

A. Excavate to indicated elevations and dimensions shown on Contract Drawings within a tolerance plus or minus one tenth foot (0.1’). If applicable, extend excavations a sufficient distance from structures for placing and removing concrete formwork, for installing services and other construction, and for inspections.

***REVISE FIRST SUBPARAGRAPH BELOW IF FOOTINGS AND FOUNDATIONS ARE PLACED ON ENGINEERED FILL***

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Denver Parks & RecreationStandard Specs

Updated: January 20181. Excavations for Footings and Foundations: Do not disturb bottom of excavation.

Excavate by hand to final grade just before placing concrete reinforcement. Trim bottoms to required lines and grades to leave solid base to receive other work.

***RETAIN FIRST SUBPARAGRAPH BELOW IF REQUIRED.***2. Pile Foundations: Stop excavations six to twelve-inches (6” – 12”) above bottom of pile

cap before piles are placed. After piles have been driven, remove loose and displaced material. Excavate to final grade, leaving solid base to receive concrete pile caps.

3.9 EXCAVATION FOR WALKS AND PAVEMENTS***EDIT BASED ON APPROVED GEOTECHNICAL REPORT.***

3.10 INSPECTION

A. Subgrade and Rough Grade Inspection***REVISE LOCATIONS FOR PROOF-ROLLING IN FIRST PARAGRAPH BELOW IF REQUIRED; REVISE TYPE OF VEHICLE AND MINIMUM WEIGHT TO SUIT PROJECT. PROOF-ROLLING CAN BE USED FOR WIDE AREAS, NOT TRENCHES***4. For concrete subgrade preparation, proof-roll subgrade in locations identified by the Project Manager with a pneumatic-tired and loaded ten (10-wheel), tandem-axle dump truck weighing not less than fifteen (15) tons to identify soft pockets and areas of excess yielding. Do not proof-roll wet or saturated subgrades.

a. Completely proof-roll subgrade in one direction. Limit vehicle speed to three (3) mph.

b. Excavate soft spots, unsatisfactory soils, and areas of excessive pumping or rutting as determined by the Project Manager, and replace with compacted backfill or fill as directed.

PART 4- MEASUREMENT AND PAYMENT

4.1 MEASUREMENT [Consultant to select A or B]

A. Measurement will be based on the percentage complete for the lump sum contract amount for Earth Moving.

B. Measurement will be made by the contract unit specified for Earth Moving.  Measurement shall include the actual number of units of specified material(s) placed and accepted at the locations shown on the Contract Drawings, or as directed by the Project Manager, and in accordance with the Specifications.

4.2 PAYMENT

A. Payment will be made at the [contract unit] [lump sum contract] price, and shall include required materials, transportation, equipment, labor, excavation, stockpiling, disposing, hauling off, importing fill, re-transporting to fill locations (from locations of excavation or from onsite stockpiles), watering, compaction, sub-grade preparation, measuring of subgrade to bring within tolerances, backfilling, dust control, erosion and sediment control, rough grading, fine grading, <Insert additional items> as required in accordance with the Contract Drawings and Specifications. Stripping and stockpiling of topsoil shall be paid for separately under Division 32 Section “Topsoil”.***REVISE AS NEEDED, AND AS DIRECTED BY THE PROJECT MANAGER***

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Denver Parks & RecreationStandard Specs

Updated: January 2018

SECTION 31 23 16 – EXCAVATION AND BACKFILLING OF THE TRENCHES

PART 1 – GENERAL

1.2 SUMMARY

B. Related Work: Contractor shall comply with the requirements of the following Sections when installing underground utilities***EDIT FOLLOWING LIST AS NECESSARY TO REFLECT PROJECT CONDITIONS. ***1. Division 01 Section “Layout of Work and Surveys”.2. Division 01 Section “Tree Retention and Protection”.3. Division 31 Section “Clearing and Grubbing”.4. Division 31 Section “Earth Moving”.5. Division 32 Section “Soil Preparation”.6. Division 32 Section “Topsoil”.7. Division 32 Section “Turfgrass Seeding”.8. Division 32 Section “Native Seeding”.9. Division 32 Section “Sodding”.10. Division 32 Section “Landscape Irrigation”.11. Division 32 Section “Automatic Irrigation Controllers”

PART 4-MEASUREMENT AND PAYMENT

4.1 MEASUREMENT [Consultant to select A or B]

A. Measurement will be based on the percentage complete for the lump sum contract amount for Excavation and Backfilling of Trenches.

B. Measurement will be made by the contract unit specified for Excavation and Backfilling of Trenches.  Measurement shall include the actual number of units of specified material(s)

placed and accepted at the locations shown on the Contract Drawings, or as directed by the Project Manager, and in accordance with the Specifications.

4.2 PAYMENT

A. Payment will be made at the [contract unit] [lump sum contract] price, and shall include required materials, transportation, equipment, labor, excavation, stockpiling, disposing, hauling off, importing fill, re-transporting to fill locations (from locations of excavation or from onsite stockpiles), watering, compaction, sub-grade preparation, measuring of sub-grade to bring within tolerances, backfilling, dust control, erosion and sediment control, rough grading and fine grading <Insert additional items> as required to construct in accordance with the Contract Drawings and Specifications. Stripping and stockpiling of topsoil shall be paid for separately under Division 32 Section “Topsoil”.***REVISE AS NEEDED, AND AS DIRECTED BY THE PROJECT MANAGER***

SECTION 31 32 50 – WATERING

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Denver Parks & RecreationStandard Specs

Updated: January 2018PART 4 - MEASUREMENT AND PAYMENT

4.1 MEASUREMENT [Consultant to select A or B]

A. Measurement will be based on the percentage complete for the lump sum contract amount for Watering.

B. Measurement will be made by the contract unit specified for Watering.  Measurement shall include the actual number of units of specified material(s) placed and accepted at the locations shown on the Contract Drawings, or as directed by the Project Manager, and in accordance with the Specifications.

4.2 PAYMENT

A. Payment will be made at the [contract unit] [lump sum contract] price, and shall include required materials, transportation, equipment, labor, excavation, stockpiling, disposing, hauling off, dust control, erosion and sediment control, <Insert additional items> as required in accordance with the Contract Drawings and Specifications.***REVISE AS NEEDED, AND AS DIRECTED BY THE PROJECT MANAGER***

SECTION 31 11 16 – AGGREGATE BASE COURSE

PART 4 - MEASUREMENT AND PAYMENT

4.1 MEASUREMENT [Consultant to select A or B]

A. Measurement will be based on the percentage complete for the lump sum contract amount for Aggregate Base Course.

B. Measurement will be made by the contract unit specified for Aggregate Base Course.  Measurement shall include the actual number of units of specified material(s) placed and accepted at the locations shown on the Contract Drawings, or as directed by the Project Manager, and in accordance with the Specifications.

4.2 PAYMENT

A. Payment will be made at the [contract unit] [lump sum contract] price, and shall include required materials, transportation, equipment, labor, excavation, de-watering, stockpiling, placement, grading, compaction, hauling off, watering, dust control, erosion and sediment control, <Insert additional items> as required in accordance with the Contract Drawings and Specifications.***REVISE AS NEEDED, AND AS DIRECTED BY THE PROJECT MANAGER***

SECTION 32 12 16 – ASPHALT PAVEMENT

PART 1 – GENERAL

1.4 SUBMITTALS

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Denver Parks & RecreationStandard Specs

Updated: January 2018

E. Samples for Verification: For the following products, in manufacturer's standard sizes unless otherwise indicated:***EDIT REQUIRED PRODUCT SAMPLE LIST IN SUBPARAGRAPHS BELOW***1. Each paving fabric, twelve-inches (12”) by twelve-inches (12”) minimum.2. Each type and color of preformed traffic-calming device.3. Each pattern and color of imprinted asphalt [and precut marking material].

1.6 DELIVERY, STORAGE, AND HANDLING***RETAIN THIS ARTICLE IF PAVEMENT-MARKING MATERIALS ARE REQUIRED.***

PART 2 – PRODUCTS

2.2 PAVEMENT MARKING PAINT AND ASSOCIATED MATERIALS***SELECT FROM FOLLOWING***

A. Alkyd-resin type, lead and chromate free, ready mixed, complying with AASHTO M 248, [Type N] [Type F] [Type S]; colors complying with FS TT-P-1952. SELECT FROM COLORS IN SUBPARAGRAPH BELOW. IF MORE THAN ONE COLOR IS REQUIRED, INDICATE LOCATIONS OF EACH ON DRAWINGS OR BY INSERTS.1. Color: [White] [Yellow] [Blue] [As indicated] <Insert color>.

B. Pavement-Marking Paint: MPI #32 Alkyd Traffic Marking Paint.1. Color: [White] [Yellow] [Blue] [As indicated] <Insert color>.

C. Pavement-Marking Paint: Latex, waterborne emulsion, lead and chromate free, ready mixed, complying with FS TT-P-1952, Type II, with drying time of less than [three] [45] minutes.1. Color: [White] [Yellow] [Blue] [As indicated] <Insert color>.

D. Pavement-Marking Paint: MPI #97 Latex Traffic Marking Paint.1. Color: [White] [Yellow] [Blue] [As indicated] <Insert color>.

2.3 AUXILLIARY MATERIALS***RETAIN PARAGRAPH BELOW WITH PAVEMENT MARKING PAINTS ABOVE IF REFLECTORIZED PAVEMENT MARKINGS ARE REQUIRED***

A. Glass Beads: AASHTO M 247, Type 1.***RETAIN PARAGRAPH BELOW IF WHEEL STOPS ARE REQUIRED REVISE CONCRETE STRENGTH OR DIMENSIONS OF WHEEL STOPS IN FIRST PARAGRAPH TO SUIT PROJECT***

C. PERFORMED TRAFFIC CALMING DEVICES***RETAIN THIS ARTICLE IF PREFORMED TRAFFIC-CALMING DEVICES ARE REQUIRED. COPY PARAGRAPH BELOW AND RE-EDIT FOR EACH PRODUCT. INSERT NUMBER TO COMPLETE DRAWING DESIGNATION. USE THESE DESIGNATIONS ON DRAWINGS TO IDENTIFY EACH PRODUCT***1. Speed [Bumps] [Humps] [Cushions] <Insert drawing designation>: Solid, integrally colored, 100 percent postconsumer or commingled postconsumer and postindustrial recycled [rubber] [plastic]; UV stabilized. Provide holes for anchoring to substrate.

***RETAIN ONE OF FIRST TWO SUBPARAGRAPHS BELOW. RETAIN FIRST FOR SPEED BUMPS AND SECOND FOR SPEED HUMPS AND SPEED CUSHIONS***

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Denver Parks & RecreationStandard Specs

Updated: January 2018a. Size: Modular bumps two-inches (2”) high by ten-inches (10”) wide by seventy-

two-inches (72”) long, with overall length as dimensioned on Contract Drawings.b. Size: Modular assemblies three-inches (3”) high by twelve feet (12’) in overall

width] >, with overall length as dimensioned on Contract Drawings.***IN FIRST SUBPARAGRAPH BELOW, SECOND HARDWARE OPTION IS LIMITED TO ASPHALT WHERE DRILLING HOLES IS PERMITTED***

c. Mounting Hardware: Galvanized-steel hardware as standard with device manufacturer.

PART 3 – EXECUTION

3.1 EXAMINATION***RETAIN PARAGRAPH BELOW IF IMPRINTED ASPHALT PAVING IS REQUIRED***

D. Verify that utilities, traffic loop detectors, and other items requiring a cut and installation beneath the asphalt surface have been completed and that asphalt surface has been repaired flush with adjacent asphalt prior to beginning installation of imprinted asphalt.

3.3 FIELD QUALITY CONTROL***RETAIN FIRST PARAGRAPH BELOW IF IMPRINTED ASPHALT IS REQUIRED***

C. Installer Qualifications: Submit supportive documentation as to the asphalt installer’s qualifications relative to training and experience for installation of asphalt required for this Project. Installer to have been in business in the State of Colorado continuously for a minimum of 5 years, and can prove experience on completed jobs of similar scope and complexity.

3.4 ASPHALT PAVEMENTS2. Main Drive Aisles Asphalt Pavement:

a. Sub-grade shall be reconditioned to a minimum depth of 8-inches or as required per the geotechnical data, whichever is greater. The sub-grade shall be moisture conditioned and compacted to 95% of Standard Proctor.***CHECK GEOTECH REPORT TO VERIFY BASE COURSE REQUIREMENT***

b. Base course shall be a minimum six-inches (6”) thickness, moisture conditioned and compacted to ninety-five percent (95%) of Standard Proctor in accordance with MGPEC Item 7.

c. Main drive aisles shall have a minimum asphalt thickness of six inches (6”).

d. Total thickness of pavement section shall be twelve inches (12”).3. Pedestrian Walk Asphalt Pavement:

a. Sub-grade shall be reconditioned to a minimum depth of eight-inches (8”) or as required per the geotechnical data, whichever is greater. The sub-grade shall be moisture conditioned and compacted to ninety-five percent (95%) of Standard Proctor.

b. [If required by geotech and shown on Contract Drawings.] Base course shall be a minimum six-inch (6”) thickness, moisture conditioned and compacted to ninety-five percent (95%) of Standard Proctor in accordance with MGPEC Item 7.

c. Asphalt pedestrian walkways shall have a minimum asphalt thickness of four-inches (4”), installed in two (2) equal lifts.***REVISE IF NO BASE COURSE***

3.5 PATCHING AND REPAIRS

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Denver Parks & RecreationStandard Specs

Updated: January 2018***RETAIN THIS ARTICLE IF PATCHING EXISTING PAVEMENT. RETAIN FIRST PARAGRAPH BELOW IF EXISTING PAVEMENT IS HOT-MIX ASPHALT.***

3.7 PAVING GEOTEXTILE INSTALLATION

***RETAIN THIS ARTICLE IF USING PAVING GEOTEXTILE OVER EXISTING HOT-MIX ASPHALT PAVEMENT. RETAIN EMBEDMENT MATERIAL FROM THREE OPTIONS IN FIRST PARAGRAPH BELOW.***

3.8 ASPHALT TRAFFIC-CALMING DEVICES

***RETAIN THIS ARTICLE ONLY FOR SITE-FORMED, ASPHALT TRAFFIC-CALMING DEVICES. RETAIN TOLERANCE OR REVISE TO SUIT PROJECT***

A. Construct hot-mix asphalt speed [bumps] [humps] [cushions] [and] [tables] over compacted pavement surfaces. Apply a tack coat unless pavement surface is still tacky and free from dust. Spread mix at minimum temperature of two hundred fifty degrees (250° F)

1. Tack Coat Application: Apply uniformly to surfaces of existing pavement at a rate of five one-hundredths (0.05) to fifteen one-hundredths (0.15) gal./sq. yd.***REVISE FIRST SUBPARAGRAPH BELOW TO INSERT DESIGNATIONS OF STATE OR LOCAL DOT IF MIXES ARE DIFFERENT***

2. Asphalt Mix: Same as pavement surface-course mix.3. Before installation, mill pavement that will be in contact with bottom of traffic-

calming device. Mill to a depth of one inch (1”) from top of pavement to a clean, rough profile.

3.9 SURFACE TREATMENTS***RETAIN THIS ARTICLE IF SURFACE TREATMENTS, WHICH ARE USUALLY APPLIED TO OLDER ASPHALT PAVEMENTS, ARE REQUIRED. SEE EVALUATIONS***

A. Fog Seal: Refer to MGPEC Item 24.B. Chip Seal: Refer to MGPEC Item 25.C. Slurry Seals: Refer to MGPEC Item 26.

3.10 PAVEMENT MARKING

A. Do not apply pavement-marking paint until layout, colors, and placement have been verified with Project Manager.***MARKING-PAINT MANUFACTURERS CAUTION THAT PAINT WILL BLEED OR TEAR SURFACE OF NEW ASPHALT UNLESS ASPHALT IS AGED BEFORE PAINTING. THIS AGING PERIOD MAY VARY FROM 30 TO 90 DAYS. IF PAVEMENT MARKING MUST PROCEED IMMEDIATELY, CONSIDER REVISING TO A PHASED APPLICATION OF A THIN FIRST COAT FOLLOWED BY A THICKER SECOND COAT ONCE ASPHALT HAS AGED. VERIFY THAT TWO-COAT APPLICATION IS RECOMMENDED BY PAVEMENT-MARKING MANUFACTURER***

D. Apply paint with mechanical equipment to produce pavement markings, of dimensions indicated, with uniform, straight edges. Apply at manufacturer's recommended rates to provide a minimum wet film thickness of fifteen (15) mils.

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Denver Parks & RecreationStandard Specs

Updated: January 2018***RETAIN SUBPARAGRAPH BELOW IF GLASS BEADS ARE REQUIRED FOR REFLECTIVITY***

1. Broadcast glass beads uniformly into wet pavement markings at a rate of six (6) lb/gal.

3.11 WHEEL STOPS***RETAIN THIS ARTICLE IF WHEEL STOPS ARE REQUIRED.***

A. Install wheel stops in bed of adhesive as recommended by manufacturer.

B. Securely attach wheel stops to pavement with not less than two galvanized-steel dowels embedded at one-quarter to one-third points. Securely install dowels into pavement and bond to wheel stop. Recess head of dowel beneath top of wheel stop.

3.12 PREFORMED TRAFFIC-CALMING DEVICES***RETAIN THIS ARTICLE IF PREFORMED TRAFFIC-CALMING DEVICES ARE REQUIRED.******RETAIN FIRST PARAGRAPH BELOW WHERE PERMANENTLY INSTALLED DEVICES ARE REQUIRED OR IF TRAFFIC LOAD IS VERY HEAVY AND MECHANICAL ATTACHMENT IS INSUFFICIENT.***

A. Install preformed speed [bumps] [humps] [cushions] in bed of adhesive as recommended by manufacturer for heavy traffic.

B. Securely attach preformed speed [bumps] [humps] [cushions] to pavement with hardware spaced as recommended by manufacturer for heavy traffic. Recess head of hardware beneath top surface.

PART 4 MEASUREMENT AND PAYMENT

4.1. MEASURMENT [Consultant to select A or B]

A. Measurement will be based on the percentage complete for the lump sum contract amount for Asphalt Pavement.

B. Measurement will be made by the contract unit specified for Asphalt Pavement.  Measurement shall include the actual number of units of specified material(s) placed and accepted at the locations shown on the Contract Drawings, or as directed by the Project Manager, and in accordance with the Specifications.

4.2 PAYMENT

A. Payment will be made at the [contract unit] [lump sum contract] price, and shall include required materials, transportation, equipment, labor, excavation, sub-grade preparation, base course placement, asphalt compaction, testing, stockpiling, disposing, hauling off, watering, dust control, erosion and sediment control, <Insert additional items> as required in accordance with the Contract Drawings and Specifications.***REVISE AS NEEDED, AND AS DIRECTED BY THE PROJECT MANAGER. **

SECTION 32 13 13 - CONCRETE WALKS, CURBS, AND MISCELLANEOUS FLATWORK

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Denver Parks & RecreationStandard Specs

Updated: January 2018PART 1 – GENERAL

1.3 REFERENCES***EDIT LIST AS NEEDED TO SUIT PROJECT***

A. Project Geotechnical Report [state date and author of report].

1.4. QUALITY CONTROL

A. Pre-Construction Conference: Conduct conference at location approved by the Project Manager.1. Before submitting design mixtures, review concrete design mixture and examine

procedures for ensuring quality of concrete materials. Require representatives of each entity directly concerned with concrete to attend, including the following:e. Special concrete finish subcontractor.***DELETE IF NOT APPLICABLE***

PART 2 – PRODUCTS

2.2 STEEL REINFORCEMENT ***EDIT LIST AS NEEDED***

H. Bar Supports: Bolsters, chairs, spacers, and other devices for spacing, supporting, and fastening reinforcing bars, and dowels in place. Manufacture bar supports according to CRSI's "Manual of Standard Practice" from steel wire, plastic, or precast concrete of greater compressive strength than concrete specified, and as follows:***RETAIN OR REVISE SUBPARAGRAPHS BELOW TO SUIT PROJECT. ***1. Equip wire bar supports with sand plates or horizontal runners where base material will

not support chair legs.2. For epoxy-coated reinforcement, use epoxy-coated or other dielectric-polymer-coated wire bar supports.

2.4 ADMIXTURES

C. Color Admixture: Color Pigment: ASTM C 979 synthetic mineral-oxide pigments or colord water-reducing admixtures; color stable, nonfading, and resistant to lime and other alkalis.1. Manufacturers: Subject to compliance with requirements, provide products by one of the

following: ***DELETE THE FOLLOWING SUBSECTIONS TO SUIT THE PROJECT***

a. Davis Colorsb. Dayton Superior Corporationc. Scofield, L. M. Companyd. [Consultant to specify manufacturer]

2. Color: Match Architect’s sample ***SPECIFY MANUFACTURER/COLOR***

2.9 CURING MATERIALS

***RETAIN PARAGRAPH BELOW IF WHITE, WATERBORNE, MEMBRANE-FORMING CURING COMPOUND IS REQUIRED***

D. White, Waterborne, Membrane-Forming Curing and Sealing Compound: ASTM C 1315, Type two (2), Class B, dissipating.1. Products [provide the following]

a. [Product]

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Denver Parks & RecreationStandard Specs

Updated: January 2018b. Or approved equal

2.10 RELATED MATERIALS

***RETAIN FIRST PARAGRAPH BELOW FOR EXPOSED-AGGREGATE FINISH REQUIRING SURFACE RETARDER; THIS IS NOT AN EVAPORATION RETARDER. ***A. Chemical Surface Retarder: Water-soluble, liquid, set retarder with color dye, for horizontal

concrete surface application, capable of temporarily delaying final hardening of concrete to a depth of one eighth-inch (1/8”) to one quarter-inch (1/4”) to match the Project Manager’s sample.1. Products: [provide the following]:

a. [Product]b. Or approval equal

PART 3 – EXECUTION

3.1 FIELD QUALITY CONTROL

C. Ready-Mix-Concrete Manufacturer Qualifications: A firm experienced in manufacturing ready-mixed concrete products and that complies with ASTM C 94/C 94M requirements for production facilities and equipment.***RETAIN SUBPARAGRAPH BELOW IF REQUIRED. ***

1. Manufacturer certified according to NRMCA's "Certification of Ready Mixed Concrete Production Facilities" (Quality Control Manual - Section 3, "Plant Certification Checklist")’

O. Tolerances: Comply with tolerances in ACI 117, the Contract Drawings, and as follows:***ACI 117 ESTABLISHES FEW PAVING TOLERANCES, THOSE IN SUBPARAGRAPHS BELOW ARE BASED ON ACI 330.1. REVISE TO SUIT PROJECT***1. Elevation and Cross-slope: In conformance with grading plans and ADA.2. Thickness: Plus, three eighths-inch (3/8”), minus one quarter-inch (1/4”).3. Surface: Gap below ten feet (10’) long, unleveled straightedge not to exceed one eighty -

inch (1/8”).4. Lateral Alignment and Spacing of Dowels: one-inch (1”).5. Vertical Alignment of Dowels: one quarter-inch (1/4”).6. Joint Spacing: three-inches (3”).7. Contraction Joint Depth: Plus, one quarter-inch (1/4”), no minus.8. Joint Width: Plus, one eighth-inch (1/8”), no minus.

3.4 STEEL REINFORCEMENT

***RETAIN THIS ARTICLE IF STEEL-REINFORCED CONCRETE PAVING IS REQUIRED; REVISE TO SUIT PROJECT***

A. Install steel reinforcement only in locations shown on Contract Drawings.

B. General: Comply with CRSI's "Manual of Standard Practice" for fabricating, placing, and supporting reinforcement.

C. Clean reinforcement of loose rust and mill scale, earth, ice, or other bond-reducing materials.

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Denver Parks & RecreationStandard Specs

Updated: January 2018D. Arrange, space, and securely tie bars and bar supports to hold reinforcement in position during

concrete placement. Maintain minimum cover to reinforcement.

3.6 CONCRETE PLACEMENT***RETAIN OPTIONS IN FIRST TWO PARAGRAPHS BELOW IF STEEL REINFORCEMENT IS REQUIRED***

A. Prior to placing any new sections of asphalt or concrete pavement, the entire subgrade shall be scarified to a depth of 6-inches. In areas where existing pavement is to be removed and replaced the existing compacted subgrade may be reused if the subgrade meets specified compaction. In areas of existing subgrade that do not meet the specified compaction, materials shall be removed, replaced and compacted to meet the specified proctor density. Adjust moisture content and compact as hereinafter specified.

B. Before placing concrete, inspect and complete formwork installation, steel reinforcement (if present) and items to be embedded or cast-in.

H. Consolidate concrete according to ACI 301 by mechanical vibrating equipment supplemented by hand spading, rodding, or tamping.***RETAIN OPTIONS IN SUBPARAGRAPH BELOW IF STEEL REINFORCEMENT IS REQUIRED. ***

1. Consolidate concrete along face of forms and adjacent to transverse joints with an internal vibrator. Keep vibrator away from joint assemblies, reinforcement, or side forms. Use only square-faced shovels for hand spreading and consolidation. Consolidate with care to prevent dislocating reinforcement, dowels, and joint devices.

***RETAIN FIRST PARAGRAPH BELOW IF MACHINE-PLACED CURBS AND GUTTERS ARE PERMITTED. ***

K. Curbs and Gutters: Use design mixture for automatic machine placement. Produce curbs and gutters to required cross section, lines, grades, finish, and jointing.

***RETAIN FIRST PARAGRAPH BELOW IF MACHINE-PLACED PAVING IS ACCEPTABLE. ***

L. Slip-Form Paving: Use design mixture for automatic machine placement. Produce paving to required thickness, lines, grades, finish, and jointing.1. Compact subbase and prepare subgrade of sufficient width to prevent displacement of

slip-form paving machine during operations.

3.6 CONCRETE FINISHING

D. FINISHES***EDIT FINISHES AS NEEDED TO MEET PROJECT REQUIREMENTS. THE FOLLOWING ARE FOR EXAMPLE ONLY***1. Medium Broom Finish: Provide a medium broom finish for all exterior concrete unless

otherwise noted. Immediately after float finishing and tool work, roughen surface with fiber-bristle broom to match the approved mockup panel. Confirm direction or pattern of broom finish with the Project Manager prior to commencing slab placement.

2. Monolithic Exposed-Aggregate Finish: Expose coarse aggregate in paving surface as follows:a. Immediately after float finishing, spray-apply chemical surface retarder to paving

according to manufacturer's written instructions.

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Denver Parks & RecreationStandard Specs

Updated: January 2018b. Cover paving surface with plastic sheeting, sealing laps with tape, and remove

when ready to continue finishing operations.c. Without dislodging aggregate, remove mortar concealing the aggregate by lightly

brushing surface with a stiff, nylon-bristle broom. Do not expose more than one-third of the average diameter of the aggregate and not more than one-half of the diameters of the smallest aggregate.

d. Fine-spray surface with water and brush. Repeat cycle of water flushing and brushing until cement film is removed from aggregate surfaces to depth required.

PART 4-MEASUREMENT AND PAYMENT***EDIT THE FOLLOWING FOR EITHER UNIT PRICE OR LUMP SUM, AS DIRECTED BY PROJECT MANAGER***4.1 MEASUREMENT [Consultant to select A or B]

A. Measurement will be based on the percentage complete for the lump sum contract amount for Concrete Walks, Curbs and Miscellaneous Flatwork.

B. Measurement will be made by the contract unit specified for Concrete Walks, Curbs and Miscellaneous Flatwork.  Measurement shall include the actual number of units of specified material(s) placed and accepted at the locations shown on the Contract Drawings, or as directed by the Project Manager, and in accordance with the Specifications.

4.2 PAYMENT

A. Payment will be made at the [contract unit] [lump sum contract] price, and shall include required materials, transportation, equipment, labor, excavation, stockpiling, disposing, hauling off, watering, dust control, erosion and sediment control, compaction, sub-grade preparation, formwork, placing of concrete, reinforcing, joints, curing, finishing <Insert additional items> and all other items required to complete the work as required in accordance with the Contract Drawings and Specifications.

SECTION 32 15 40 - CRUSHED STONE PAVING

PART 1 – GENERAL

1.7 MAINTENANCE SERVICE***GENERALLY A MAINTENANCE PERIOD SHOULD BE CONSISTENT WITH THAT FOR PLANTS AND GRASSES***A. General: Maintain work in accordance with Division 01.***REVISE MINIMUM MAINTENANCE PERIOD IN SUBPARAGRAPH BELOW TO SUIT PROJECT***1. Maintenance Period: begin maintenance immediately after Work is completed. Maintain areas until the end of the Warranty period.

PART 2- PRODUCTS

2.1 CRUSHED STONE PAVING***EDIT MATERIALS, COLOR, ETC. TO SUIT PROJECT***

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Denver Parks & RecreationStandard Specs

Updated: January 2018A. Type: Crushed granite stone or gravel. Shall be unused material free of shale, lay, friable

materials, organics and debris. ***REVISE SIZES IN FIRST SUBPARAGRAPH BELOW OR INSERT OTHER SIEVE RANGES TO SUIT PROJECT AND REGIONAL AVAILABILITY***

1. Size Range: 3/8 inch maximum

Sieve Size Percent Passing 2 inch 100 3/8 inch 100 No. 4 85 No. 8 63 No. 16 50 No. 30 39 No. 50 29 No. 100 18 ***REVISE SUBPARAGRAPH BELOW TO CHANGE COLOR OR ADD OTHER COLORS***2. Color: Uniform tan-beige.

2.2 SOIL STABILIZER***RETAIN THIS SECTION IF APPROPRIATE TO STABILIZE CRUSHED STONE PAVING. RETAIN OR REVISE ONE OF THE PARAGRAPHS BELOW. REVISE LOCAL SUPPLIER AS NEEDED.***

A. Soil stabilizer or binder: Natracil by Gail Materials or approved equal. 1. Local supplier: 2. Swell volume: 35 ml/gm minimum in accordance with USP procedures.3. 90% minimum shall pass a No. 40 mesh screen.

***OR***B. Factory blended stabilized crushed stone paving. Provide in all locations shown on the drawings.

1. Mix crushed stone paving material with Natracil with a pug mill that includes a weigh-belt feeder.

a. Mix fourteen (14) pounds of binder per two thousand (2,000) pounds of aggregate.

PART 3- EXECUTION

3.4 PLACEMENT OF CRUSHED STONE PAVING

H. Spread and compact additional crushed stone paving to achieve the required minimum compacted thickness. Compact per 3.3.F above.***REVISE SECTION BELOW TO SUIT PROJECT CONDITIONS. REMOVE SECTION BELOW IF STABILIZED CRUSHED STONE PAVING IS NOT TO BE USED.***

PART 4 - MEASUREMENT AND PAYMENT

4.1 MEASUREMENT [Consultant to select A or B]

A. Measurement will be based on the percentage complete for the lump sum contract amount for Crushed Stone Paving.

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Denver Parks & RecreationStandard Specs

Updated: January 2018B. Measurement will be made by the contract unit specified for Crushed Stone Paving.  Measurement shall include the actual number of units of specified material(s) placed and accepted at the locations shown on the Contract Drawings, or as directed by the Project Manager, and in accordance with the Specifications.

4.2 PAYMENT

A. Payment will be made at the [contract unit] [lump sum contract] price, and shall include required materials, transportation, equipment, labor, excavation, grading, stockpiling, disposing, hauling off, watering, dust control, erosion and sediment control, landscape renovation <Insert additional items> as required in accordance with the Contract Drawings and Specifications.***REVISE AS NEEDED, AND AS DIRECTED BY THE PROJECT MANAGER. ***

SECTION 32 17 23 - PAVEMENT MARKINGS

PART 1 – GENERAL

1.3 SUBMITTALS***RETAIN "SAMPLES" PARAGRAPH BELOW FOR SINGLE-STAGE SAMPLES, WITH A SUBORDINATE LIST IF APPLICABLE***

C. Samples: For each exposed product and for each color and texture specified; on rigid backing, eight-inches (8”) square.

PART 2- PRODUCTS

2.3 PAVEMENT-MARKING PAINT***RETAIN ONE OF FOUR "PAVEMENT-MARKING PAINT" PARAGRAPHS BELOW. VERIFY AVAILABILITY WITH MARKING-PAINT MANUFACTURERS***

A. Pavement-Marking Paint: Alkyd-resin type, lead and chromate free, ready mixed, complying with AASHTO M 248, [Type N] [Type F] [Type S]; colors complying with FS TT-P-1952.***RETAIN REQUIRED COLOR(S) IN "COLOR" SUBPARAGRAPH BELOW. IF MORE THAN ONE COLOR IS REQUIRED, INDICATE LOCATIONS OF EACH ON DRAWINGS OR BY INSERTS***

1. Color: [White] [Yellow] [Blue] [As indicated] <Insert color>.

B. Pavement-Marking Paint: MPI #32, alkyd traffic-marking paint.***RETAIN REQUIRED COLOR(S) IN "COLOR" SUBPARAGRAPH BELOW. IF MORE THAN ONE COLOR IS REQUIRED, INDICATE LOCATIONS OF EACH ON DRAWINGS OR BY INSERTS***

1. Color: [White] [Yellow] [Blue] [As indicated] <Insert color>.***IN FIRST "PAVEMENT-MARKING PAINT" PARAGRAPH BELOW, REVISE TYPE TO TYPE I IF ANTICIPATED WEATHER CONDITIONS ARE SUFFICIENTLY BENIGN. SEE EVALUATIONS. SOME FORMULATIONS OF WATERBORNE EMULSIONS ARE QUICK DRYING, OTHERS LESS SO; SEE MANUFACTURER'S LITERATURE***

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Denver Parks & RecreationStandard Specs

Updated: January 2018C. Pavement-Marking Paint: Latex, waterborne emulsion, lead and chromate free, ready mixed,

complying with FS TT-P-1952, Type II, with drying time of less than [three] [45] minutes.***RETAIN REQUIRED COLOR(S) IN "COLOR" SUBPARAGRAPH BELOW. IF MORE THAN ONE COLOR IS REQUIRED, INDICATE LOCATIONS OF EACH ON DRAWINGS OR BY INSERTS***

1. Color: [White] [Yellow] [Blue] [As indicated] <Insert color>.

D. Pavement-Marking Paint: MPI #97, latex traffic-marking paint.***Retain required color(s) in "Color" Subparagraph below. If more than one color is required, indicate locations of each on Drawings or by inserts.***

1. Color: [White] [Yellow] [Blue] [As indicated] <Insert color>.***RETAIN "GLASS BEADS" PARAGRAPH BELOW IF REFLECTORIZED PAVEMENT MARKINGS ARE REQUIRED. RETAIN OPTION OR

"ROUNDNESS" SUBPARAGRAPH BELOW, OR BOTH, IF REQUIRED; REVISE TO SUIT PROJECT***

E. Glass Beads: AASHTO M 247, Type 1[ made of 100 percent recycled glass].***RETAIN "ROUNDNESS" SUBPARAGRAPH BELOW IF A GREATER PERCENTAGE THAN 70 PERCENT, REQUIRED BY AASHTO M 247, IS REQUIRED. REFLECTIVITY INCREASES WITH INCREASE OF ROUNDNESS PERCENTAGE***

1. Roundness: Minimum [75] [80] percent true spheres by weight.

PART 3- EXECUTION

3.3 PREPARATION

A. Do not apply pavement-markings until layout, colors, and placement have been verified with Project Manager.***MARKING-PAINT MANUFACTURERS CAUTION THAT PAINT WILL BLEED OR TEAR SURFACE OF NEW ASPHALT UNLESS ASPHALT IS AGED BEFORE PAINTING. THIS AGING PERIOD MAY VARY FROM 30 TO 90 DAYS. IF PAVEMENT MARKING MUST PROCEED IMMEDIATELY, CONSIDER REVISING TEXT TO A PHASED APPLICATION OF A THIN FIRST COAT FOLLOWED BY A THICKER SECOND COAT ONCE ASPHALT HAS AGED. VERIFY THAT TWO-COAT APPLICATION IS RECOMMENDED BY MARKING-PAINT MANUFACTURER***

3.4 THERMAL PLASTIC PAVEMENT MARKINGS***UNLESS BOTH THERMAL PLASTIC PAVEMENT MARKINGS AND PAINTED MARKINGS ARE TO BE USED, ELIMINATE EITHER 3.3 OR 3.4 TO MATCH PROJECT CONDITIONS***

PART 4 - MEASUREMENT AND PAYMENT

4.1 MEASUREMENT [Consultant to select A or B]

A. Measurement will be based on the percentage complete for the lump sum contract amount for Soil Preparation.

B. Measurement will be made by the contract unit specified for Soil Preparation.  Measurement shall include the actual number of units of specified material(s) placed and accepted at the

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Denver Parks & RecreationStandard Specs

Updated: January 2018locations shown on the Contract Drawings, or as directed by the Project Manager, and in accordance with the Specifications.

4.2 PAYMENT

A. Payment will be made at the [contract unit] [lump sum contract] price, and shall include required materials, transportation, equipment, labor, <Insert additional items> as required in accordance with the Contract Drawings and Specifications.***EDIT AS NEEDED AND AS DIRECTED BY THE PROJECT MANAGER DEPENDING ON WHETHER CONTRACT IS LUMP SUM OR UNIT PRICE BID***

SECTION 32 18 16 - PLAYGROUND PROTECTIVE SURFACING

PART 1 – GENERAL

1.2 SUMMARY

A. This sections includes the following: ***EDIT LIST BELOW TO SUIT PROJECT***1. Unitary synthetic [poured] [bonded] rubber seamless surface.2. Unitary synthetic [dual-density] rubber tile surface.3. Engineered Wood Fiber surface.

1.4 PERFORMANCE REQUIREMENTS

***RETAIN PARAGRAPH BELOW IF EWF IS SPECIFIED***C. Minimum Characteristics for EWF Surfaces: According to ASTM F 2075.

1.5 SUBMITTALS

***EDIT THE FOLLOWING TO SUIT PROJECT***B. Shop Drawings: For each playground surface system, include materials, plans, cross sections,

drainage, installation, [penetration details,] and edge termination [including loose fill edgings] [including border edge tiles]. [Include patterns made by varying colors of surfacing] [Include details of graphics].

D. Samples for Verification: For each type of playground surface system indicated.***REVISE LIST BELOW TO SUIT PROJECT***1. Minimum 1-quart loose-fill surface sealed in a container.2. Minimum six-inch (6”) by six-inch (6”) Sample of [synthetic rubber seamless]

[synthetic rubber tile] [synthetic, dual-density, rubber tile] surface.3. Twelve-inch (12”) long by full-size cross section of border edging.4. Minimum twelve-inch (12”) by- twelve-inch (12”) Sample of geosynthetic fabric.5. Minimum six-inch (6”) by six-inch (6”) Sample of geosynthetic, molded-sheet drainage

panel.6. Subdrainage materials as required by Division 33 Section “Subdrainage”.

***RETAIN PARAGRAPH BELOW IF SEVERAL DIFFERENT TYPES OF SURFACE SYSTEMS ARE SPECIFIED. IDENTIFY IN PARAGRAPHS OR TABLE***

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Denver Parks & RecreationStandard Specs

Updated: January 2018

E. Product Schedule: For playground surface systems.[Use same designations indicated on Contract Drawings.]

F. Coordination Drawings: Plans, drawn to scale, on which the following items are shown and coordinated with each other, using input from Installers of the items involved:***REVISE SUBPARAGRAPHS BELOW TO SUIT PROJECT***1. Extent of surface systems and use zones for equipment.2. Critical heights for playground surfaces and fall heights for equipment.

1.9 WARRANTY

A. Special Warranty: Manufacturer's standard form in which manufacturer agrees to repair or replace components of playground surface system that fail in materials or workmanship within the specified warranty period.1. Failures include, but are not limited to, the following:

a. Reduction in impact attenuation.b. Deterioration of surface and other materials beyond normal weathering.c. <Insert requirement>.

***VERIFY LENGTH OF WARRANTY PERIOD WITH PROJECT MANAGER***

PART 2- PRODUCTS***EDIT AS REQUIRED TO SUIT PROJECT***

2.1 UNITARY SYNTHETIC SEAMLESS SURFACE

A. Surface System: Poured-in-place, single-layer system. Provide manufacturer's standard thickness as required for overall thickness indicated, tested for impact attenuation according to ASTM F 1292 and for accessibility according to ASTM F 1951.1. Products: Subject to compliance with requirements, provide one of the following or an

approved equal.a. Child Safe Products, Inc.; Everguard.b. GameTime, a PlayCore, Inc.; GT Impax.c. No Fault Sport Group, LLC; Bonded Rubber Mulch.d. Play Safe Surfacing, Inc.; Rubber Mulch Pour-N-Place.e. <Insert manufacturer's name; product name or designation>.

2. Cushion Course: Manufacturer's standard blend of recycled SBR and EPDM rubber particles forming an integral wearing course and cushion course, site mixed and applied.

3. Binder: Weather-resistant, UV-stabilized, flexible, non-hardening, one hundred percent (100%) solids polyurethane complying with requirements of authorities having jurisdiction for nontoxic and low VOC content.

4. Critical Height: [Height] and as indicated on Contract Drawings.5. Overall Thickness: [Thickness] Not less than as indicated on Contract Drawings.

***THICKNESS IS RELATED TO CRITICAL HEIGHT. VERIFY WITH MANUFACTURER***

6. Primer/Adhesive: Manufacturer's standard primer and weather-resistant, moisture-cured polyurethane adhesive suitable for unit, substrate, and location indicated.***EDIT/ADD COLORS AS NEEDED***

7. Colors: As indicated on Contract Drawings.

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Denver Parks & RecreationStandard Specs

Updated: January 2018***RETAIN PARAGRAPH BELOW FOR CONCRETE SUBSTRATE REPAIR OR LEVELING. DELETE IF SUBSTRATE IS OTHER THAN CONCRETE***

B. Leveling and Patching Material for Use on Substrate Below Synthetic Play Surface: Portland cement-based grout or epoxy- or polyurethane based formulation suitable for exterior use and approved by playground surface system manufacturer.

2.2 UNITARY SYNTHETIC DUAL-DENSITY SEAMLESS SURFACE ***EDIT AS REQUIRED TO SUIT PROJECT***

A. Surface System: Poured-in-place, two-layer system with wearing course over cushion course. Provide manufacturer's standard thickness for each layer as required for overall thickness indicated, tested for impact attenuation according to ASTM F 1292 and for accessibility according to ASTM F 1951.1. Products: Subject to compliance with requirements, provide one of the following or

approved equal.a. Child Safe Products, Inc.; Everguard.b. Fibar Group LLC (The); FibarPIP Poured-in-Place Surfacing.c. GameTime, a PlayCore, Inc. company; GT Impax Poured Rubber.d. Hanover Specialties, Inc.; Vitriturf.e. No Fault Sport Group, LLC; Safety Surface.f. Play Safe Surfacing, Inc.; EPDM Pour-N-Place.g. Safe Guard Surfacing Corp.; Poured-in-Place.h. SpectraTurf, Inc.; SpectraPour.i. Surface America Incorporated; Play Bound Poured-in-Place.j. <Insert manufacturer's name; product name or designation>.

2. Wearing Course: Formulation of EPDM rubber particles, with minimum of twenty percent (20%) and maximum of twenty six percent (26%) of ethylene propylene-diene-saturated polymethylene main chain along with other organic and inorganic components.

3. Cushion Course: Manufacturer's standard formulation of [<Insert percentage> recycled] SBR particles and polyurethane, site mixed and applied.

4. Binder: Weather-resistant, UV-stabilized, flexible, nonhardening, 100 percent (100%) solids polyurethane complying with requirements of authorities having jurisdiction for nontoxic and low VOC content.

***EDIT AS NEEDED TO SUIT PROJECT AND PRODUCT. ***5. Lacquer Top Coat: Manufacturer's standard polyurethane-based formulation.6. Critical Height: [Height] As indicated on Contract Drawings.7. Overall Thickness: [Thickness]Not less than as indicated on Contract Drawings.8. Primer/Adhesive: Manufacturer's standard primer and weather-resistant, moisture-cured

polyurethane adhesive suitable for unit, substrate, and location indicated.9. Wearing Course Color(s): As indicated on Contract Drawings.***VERIFY COLORS SHOWN ON DRAWINGS***

a. Color: As indicated on Contract Drawings.

***RETAIN PARAGRAPH BELOW FOR REPAIR OR LEVELING OF CONCRETE SUBSTRATE BELOW PLAYGROUND SURFACE. DELETE IF SUBSTRATE IS OTHER THAN CONCRETE***

B. Leveling and Patching Material for Use on Concrete Substrate Below Synthetic Play Surface: Portland cement-based grout or epoxy- or polyurethane-based formulation suitable for exterior use and approved by playground surface system manufacturer.

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Denver Parks & RecreationStandard Specs

Updated: January 2018***RETAIN PARAGRAPH BELOW FOR CONCRETE SUBSTRATE REPAIR OR LEVELING. DELETE IF SUBSTRATE IS OTHER THAN CONCRETE***

B. Leveling and Patching Material for Use on Substrate Below Synthetic Play Surface: Portland cement-based grout or epoxy- or polyurethane-based formulation suitable for exterior use and approved by playground surface system manufacturer.

2.3 UNITARY SYNTHETIC TILE SURFACE***EDIT AS NEEDED TO SUIT THE PROJECT AND PRODUCT***

A. Tile System: Manufacturer’s standard blend of [recycled] SBR EPDM rubber or PVC particles forming an integral wearing course and cushion course tested for impact attenuation according to ASTM F 1292 and for accessibility according to ASTM F 1951. 1. Products: Subject to compliance with requirements, provide one of the following or an

acceptable substitution.a. Ecore International; PlayGuard Pigmented Tiles.b. Little Tikes Commercial, Inc., Playpower LT Farmington, Inc.; Kid Tiles.c. Mitchell Rubber Products, Inc.; E-Z Fall.d. No Fault Sport Group, LLC; Safety Tile.e. OTS Company; G-Flex.f. Playworld Systems, Inc.; Cushion Play.g. Safe Guard Surfacing Corp.; Pre-formed Tiles.h. SpectraTurf, Inc.; SpectraBound.i. Surface America Incorporated; Play Bound SBR Tiles.j. <Insert manufacturer's name; product name or designation>.

2. Unit Size: twenty-four-inches (24”) by twenty-four-inches (24”). 3. Base Profile: With integral ribbed or grid-patterned underside forming channels for

water drainage between surface and substrate.4. Border Edge and Corner Units: Tapered, bevel-edged units that transition from the face

of playground surface to the adjacent surface below it with a straight-sloped outside edge; size compatible with field units maintaining layout pattern continuity. Provide border edge and corner units where surface does not abut vertical surfaces.

5. Critical Height: [Height] As indicated on Contract Drawings.***THICKNESS IS RELATED TO CRITICAL HEIGHT. VERIFY WITH MANUFACTURER***

6. Overall Thickness: [Thickness] Not less than as indicated on Contract Drawings [as required for critical height indicated] [one and three quarters-inches (1-3/4”)] [two and three quarters-inches (2-3/4”)-inches] [four-inches (4”)] [as indicated] <Insert dimension>.

7. Anchors: Manufacturer's standard.8. Anchor Cement: Manufacturer's standard nonshrink grout or polymer resin.9. Tile Color(s): As indicated on the Contract Drawings.

***EDIT/ADD COLORS AS NEEDED***a. Color: As indicated on Contract Drawings.***VERIFY COLORS SHOWN ON DRAWINGS***

10. Filler/Sealant: Manufacturer's standard clear silicone or polyurethane filler/sealant suitable for exterior use.

***RETAIN PARAGRAPH BELOW FOR REPAIR OR LEVELING OF CONCRETE SUBSTRATE BELOW PLAYGROUND SURFACE. DELETE IF SUBSTRATE IS OTHER THAN CONCRETE***

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Denver Parks & RecreationStandard Specs

Updated: January 2018B. Leveling and Patching Material for Use on Substrate Below Synthetic Play Surface: Portland

cement-based grout or epoxy- or polyurethane-based formulation suitable for exterior use and approved by playground surface system manufacturer.1. Filler/Sealant: Manufacturer's standard clear silicone or polyurethane filler/sealant

suitable for exterior use.***RETAIN PARAGRAPH BELOW FOR CONCRETE SUBSTRATE REPAIR OR LEVELING. DELETE IF SUBSTRATE IS OTHER THAN CONCRETE***

C. Leveling and Patching Material for Use on Substrate Below Synthetic Play Surface: Portland cement-based grout or epoxy- or polyurethane-based formulation suitable for exterior use and approved by playground surface system manufacturer.

2.4 ENGINEERED WOOD FIBER SURFACE ***RETAIN THIS ARTICLE IF ORGANIC LOOSE-FILL MATERIALS ARE REQUIRED FOR PROJECT. IF MORE THAN ONE LOOSE-FILL SYSTEM IS REQUIRED, REPEAT THIS ARTICLE TO DISTINGUISH BETWEEN SYSTEMS***

***RETAIN ONE OF THREE PARAGRAPHS BELOW. SEE TABLE IN THE EVALUATIONS FOR COMPARISONS OF LOOSE-FILL MATERIALS, AND NOTE VALUES FOR COMPRESSED DEPTH***

A. Engineered Wood Fiber: 1. Random-sized wood fibers, in manufacturer's standard fiber size, approximately ten (10)

times longer than wide; containing no bark, leaves, twigs, or foreign or toxic materials according to ASTM F 2075; in conformance with ASTM F 1292; graded according to manufacturer's standard specification for material consistency for playground surfaces and for accessibility according to ASTM F 1951.

2. Certified to be in conformance with IPEMA materials standards for EWF.3. Products: Subject to compliance with requirements, provide one of the following or an

approved equal.a. Fibar Group LLC (The); Fibar System [100] [200] [300].***EDIT/ADD PRODUCT TYPE AS NEEDED.***b. GameTime, a PlayCore, Inc. company; GT Impax Fiber.c. Sof'Solutions Inc.; Sof'Fall.d. Zeager Bros., Inc.; Wood Carpet.e. <Insert manufacturer's name; product name or designation>.

4. Critical Height: [Height] As per Contract Drawings.5. Uncompressed Material Depth: [Depth] Not less than as indicated on the Contract

Drawings.

2.5 ACCESSORIES

A. Stabilizing Mats: Manufacturer’s standard water permeable PVC or rubber mats tested for impact attenuation according to ASTM F 1292 and rated for use in the following locations, with anchoring system designed to anchor mat securely to subgrade through engineered wood.***REVISE LIST BELOW TO SUIT PROJECT AND PRODUCT***

***AVAILABLE MATS VARY IN DIMENSION AND INTENDED PURPOSE AND PLACEMENT. VERIFY WITH MANUFACTURER***

1. Under and in front of slide exits and under swings.

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Denver Parks & RecreationStandard Specs

Updated: January 20182. Size: [thirty-six-inches (36” by thirty-six-inches (36”)] [forty-inches (40”) by forty-

inches (40”)] [forty-eight-inches (48”) by forty-eight-inches (48”)].***EDIT SIZE AS NEEDED***

PART 3- EXECUTION

3.1 EXAMINATION***REVISE LIST BELOW TO SUIT PROJECT AND PRODUCT***

A. Examine substrates and conditions, with Installer present, for compliance with requirements for maximum moisture content, subgrade and substrate conditions, drainage, and other conditions affecting performance of the Work.

B. Surface Substrates: Verify that substrates are satisfactory for unitary playground surface system installation and that substrate surfaces are dry, cured, and uniformly level or sloped to drain within recommended tolerances according to playground surface system manufacturer's written requirements for cross-section profile.1. Concrete Substrates: Verify that substrates are dry, free from surface defects, and free of

laitance, glaze, efflorescence, curing compounds, form-release agents, hardeners, dust, dirt, loose particles, grease, oil, and other contaminants incompatible with playground surface system or that may interfere with adhesive bond. Determine adhesion, dryness, and acidity characteristics by performing procedures recommended in writing by playground surface system manufacturer.

2. Gravel Substrate: Three quarter-inch (3/4”) angular gravel drainage stone, clean and washed; depth as indicated on Contract Drawings.

C. Proceed with installation only after unsatisfactory conditions have been corrected.

3.5 INSTALLATION OF SEAMLESS PLAYGROUND AND PRODUCT***REVISE LIST BELOW TO SUIT PROJECT AND PRODUCT***

A. Seamless Surface: Mix and apply components of playground surface system according to manufacturer's written instructions to produce a uniform, monolithic wearing surface and impact-attenuating system of total thickness indicated.\1. Substrate Primer: Apply over prepared substrate at manufacturer's standard spreading

rate for type of substrate.2. Poured Cushion Course: Spread evenly over primed substrate to form a uniform layer

applied at manufacturer's standard spreading rate in one continuous operation, with a minimum of cold joints.

3. Intercoat Primer: Over cured cushion course, apply primer at manufacturer's standard spreading rate.

4. Wearing Course: Spread over primed base course to form a uniform layer applied at manufacturer's standard spreading rate in one continuous operation and, except where color changes, with minimal cold joints. Finish surface to produce manufacturer's standard wearing-surface texture.a. Where colored patterns or graphics are indicated, place adjacent colored material

as soon as placed colored material is sufficiently cured, using primer or adhesive if required by manufacturer's written instructions.

5. Lacquer Topcoat: Spray or roller applied at manufacturer's standard coating rate in one continuous operation.

6. Edge Treatment: Fully adhere surface system to edges and substrate while maintaining full thickness of surface system to comply with safety performance and accessibility requirements, as indicated on Contract Drawings.

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Denver Parks & RecreationStandard Specs

Updated: January 2018

3.6 INSTALLATIONS OF TILE PLAYGROUND AND SURFACE SYSTEMS***REVISE LIST BELOW TO SUIT PROJECT AND PRODUCT***

A. Tile Units: Provide a uniform wearing surface with no unaligned units, raised edges, or surface imperfections.1. Lay out units from center marks established with principal perimeter edges, discounting minor offsets, so units at opposite edges of installation are of equal width. Adjust as necessary to avoid using cut widths that equal less than one-half of a unit at perimeter.1. Alignment Axis and Pattern: Lay units along axis and in grid pattern as indicated on Contract Drawings.2. Cut and fit units around playground equipment supports and vertical surfaces. Do not create voids greater than 3/8-inch wide.

a. Do not stretch units during installation.3. Adhesively Applied Units: Adhere units to substrates using a full spread of adhesive applied to substrate or to unit and to each other as required.4. Mechanically Fastened Units: Anchor to substrates.5. Mechanically Attached Units: Mechanically attach all four sides of units [ including border edge and corner units,] to each other using number of fasteners per side as recommended by system manufacturer. Free lay sheet of attached units on substrate.6. Mechanically Attached Units Retained by Adhesively Applied Perimeter Units: Mechanically attach all four sides of units to each other using number of fasteners per side as recommended by system manufacturer. Adhere not less than one course of perimeter units [ and border edge and corner units] to substrates using a full spread of adhesive applied to substrate or to unit[ and to each other].7. Edge Borders: Maintain fully cushioned thickness required to comply with safety performance and accessibility requirements.8. Filler/Sealant: Mask area surrounding cutouts around playground equipment supports and other obstructions. Apply a full bead of filler/sealant, filling cutouts immediately after laying tile with cutout.

PART 4- MEASUREMENT AND PAYMENT***EDIT AS NEEDED FOR UNIT PRICE OR LUMP SUM BASIS AS DIRECTED DURING DOCUMENTATION BY DENVER PARKS PROJECT MANAGER***

4.1 MEASUREMENT [Consultant to select the type of surfacing used and measurement used for each]

A. [Unitary Synthetic Seamless Surface:] [Measurement will be based on the percentage complete for the lump sum contract amount for Playground Protective Surfacing.] [Measurement will be made by the contract unit specified for Playground Protective Surfacing.  Measurement shall include the actual number of units of specified material(s) placed and accepted at the locations shown on the Contract Drawings, or as directed by the Project Manager, and in accordance with the Specifications.]

B. [Unitary Synthetic Tile Surface:] [Measurement will be based on the percentage complete for the lump sum contract amount for Playground Protective Surfacing.] [Measurement will be

made by the contract unit specified for Playground Protective Surfacing.  Measurement shall include the actual number of units of specified material(s) placed and accepted at the

locations shown on the Contract Drawings, or as directed by the Project Manager, and in accordance with the Specifications.]

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Denver Parks & RecreationStandard Specs

Updated: January 2018C. [Engineered Wood Fiber Surface:] [Measurement will be based on the percentage complete

for the lump sum contract amount for Playground Protective Surfacing.] [Measurement will be made by the contract unit specified for Playground Protective Surfacing.  Measurement shall include the actual number of units of specified material(s) placed and accepted at the

locations shown on the Contract Drawings, or as directed by the Project Manager, and in accordance with the Specifications.]

4.2 PAYMENT

A. Payment will be made at the [contract unit] [lump sum contract] price, and shall include required materials, transportation, equipment, labor, earthwork, preparation of sub-grade, <Insert

additional items> as required in accordance with the Contract Drawings and Specifications. Subdrainage systems associated with play areas beneath surfaces specified in this Section will be measured and paid under Division 3 Section “Subdrainage Systems”.

SECTION 32 21 13 - CHAIN LINK FENCING

PART 1 – GENERAL

1.4 PERFORMANCE REQUIREMENTS***RETAIN THIS ARTICLE IF DELEGATING DESIGN OF FENCE AND GATE FRAMEWORK TO CONTRACTOR. IF NOT RETAINING, SPECIFY POST SIZE, TYPE, AND SPACING HERE OR SHOW ON DRAWINGS.***

A. Delegated Design: Design chain-link fences and gates, including comprehensive engineering analysis by a qualified professional engineer, using performance requirements and design criteria indicated.

B. Structural Performance: Chain-link fence and gate framework shall withstand the effects of gravity loads and the following loads and stresses within limits and under conditions indicated according to [ASCE/SEI 7] <Insert requirement>:***EDIT AS NEEDED TO SUIT PROJECT. *** 1. Minimum Post Size: Determine according to ASTM F 1043 for framework up to twelve feet

(12’) high, and post spacing not to exceed ten feet (10’) for <Insert material group>.2. Minimum Post Size and Maximum Spacing: Determine according to Chain Link Fence

Manufactures Institute (CLFMI WLG 2445), based on mesh size and pattern specified and on the following:a. Wind Loads: <Insert loads>.b. Exposure Category: [B] [C] [D].c. Fence Height: [Ten feet (10’)] <Insert dimension>.d. Material Group: [IA, ASTM F 1043, Schedule 40 steel pipe] [IC, electric-resistance-

welded round steel pipe] <Insert group>.

1.5 SUBMITTALS

A. For each type of product indicated. Include construction details, material descriptions, dimensions of individual components and profiles, and finishes for chain-link fences and gates.

1. Fence and gate posts, rails, and fittings.2. Chain-link fabric, reinforcements, and attachments.

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Denver Parks & RecreationStandard Specs

Updated: January 20183. Accessories: <Insert accessory>.4. Gates and hardware.

1.6 QUALITY CONTROL

D. Mockups: Build mockups to set quality standards for fabrication and installation.***RETAIN FIRST SUBPARAGRAPH BELOW FOR LIMITED MOCKUPS. REVISE TO SUIT PROJECT. FOR LARGE-SCALE MOCKUP OR FENCES WITH COMPLICATED CHANGES IN ELEVATION OR DIRECTION, SHOW MOCKUP ON DRAWINGS. ***1. Include ten foot (10’) length of fence and gate.

1.8 WARRANTY

B. Special Warranty: Manufacturer's standard form in which [manufacturer] [Installer] agrees to repair or replace components of chain-link fences and gates that fail in materials or workmanship within specified warranty period.***VERIFY AVAILABLE WARRANTIES AND WARRANTY PERIODS FOR UNITS AND COMPONENTS AND INSERT NUMBER BELOW. ***1. Warranty Period: [Five] [15] <Insert number> years from date of Substantial Completion.

PART 2- PRODUCTS

2.2 FENCE FABRIC***REVISE TO SUIT PROJECT***

A. Galvanized Fabric: hot dip galvanized after weaving in accordance with ASTM A116.1. Fabric Height: As indicated on Contract Drawings.2. Steel Wire Fabric: Wire with a diameter of eight (8) gauge.

a. Mesh Size: two inches (2”) for standard applications, one and three quarters inches (1-3/4”) for courts.

b. Zinc-Coated Fabric: ASTM A 392, Type II, [Class 1, one and two-tenths (1.2) oz./sq. ft. [Class 2, two (2.0) oz./sq. ft.] with zinc coating applied after weaving.

2.3 FENCE FRAMEWORK***REVISE TO SUIT PROJECT***

A. Galvanized Posts and Rails: Hot dip galvanized HT-25 Fence Pipe, conforming to ASTM F1043, of sizes noted on the Contract Drawings.

B. Polyester Powder Coated Posts and Rails: For use in conjunction with vinyl coated fabric. Minimum thickness of finish polyester powder coat shall be two (2) to three (3) mils over two (2) mil zinc epoxy. Color of fabric and framework to match approved sample.

2.4 TENSION WIRE***REVISE TO SUIT PROJECT***

A. Metallic-Coated Steel Wire: 0.177-inch diameter, marcelled tension wire complying with ASTM A 817 and ASTM A 824, with the following metallic coating:***EDIT TO SELECT DESIRED PRODUCT. ***1. Type II, zinc coated (galvanized) by [hot-dip] process, with the following minimum

coating weight: [choose one]a. Class 3: Not less than eight tenths (0.8) oz./sq. ft. of uncoated wire surface.

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Denver Parks & RecreationStandard Specs

Updated: January 2018b. Class 4: Not less than one and two tenths (1.2) oz./sq. ft. of uncoated wire

surface.***CLASS OF COATING WEIGHT IN FIRST SUBPARAGRAPH BELOW IS NOT READILY AVAILABLE; VERIFY AVAILABILITY WITH MANUFACTURERS. ***

c. Class 5: Not less than two (2) oz./sq. ft. of uncoated wire surface.d. Matching chain-link fabric coating weight.

2. Type III, Zn-5-Al-MM alloy with the following minimum coating weight:[Choose one]***EDIT TO SELECT DESIRED PRODUCT. ***a. Class sixty (60): Not less than six tenths (0.6) oz./sq. ft. of uncoated wire surface.b. Class one hundred (100): Not less than one (1) oz./sq. ft. of uncoated wire

surface.c. Matching chain-link fabric coating weight.

B. Polymer-Coated Steel Wire: [0.177-inch [0.148-inch] diameter, tension wire complying with ASTM F 1664, [Class 1] [Class 2a] [Class 2b] over [aluminum] [zinc] [Zn-5-Al-MM-alloy]-coated steel wire.1. Color: Match framing members, chain-link fabric, and approved sample, complying with

ASTM F 934.

2.5 TIE WIRES***EDIT AS NEEDED TO SUIT PROJECT***

A. Steel Wire: Six (6) gauge wire complying with ASTM A 817 and ASTM A 824. Coatin to match fence fabric and structure. Aluminum tie wires are not acceptable.

2.6 SWING GATES***EDIT AS NEEDED TO SUIT PROJECT***

A. General: Comply with ASTM F 900 for gate posts and [single] [double] swing gate types.

B. Materials for gates shall match fence materials relative to finish and color.

C. Dimensions and member sizes as indicated on drawings.

D. Pipe and Tubing:***EDIT AS NEEDED TO SUIT PROJECT***1. Zinc-Coated Steel: Comply with ASTM F 1043 and ASTM F 1083; [protective coating

and finish to match fence framing and approved sample.***SEE ASTM F 900 IF SIZE OF MEMBERS IS CRITICAL AND REVISE BOTH SUBPARAGRAPHS BELOW. ***

2. Gate Posts: Round tubular steel.3. Gate Frames and Bracing: Round tubular steel.

E. Frame Corner Construction: [Welded] [or] [assembled with corner fittings].

F. Hardware:1. Hinges: [one hundred eighty-degree (180°) inward] [one hundred eighty degree (180°)

outward] [three hundred sixty degree (360°) degree inward and outward] swing.2. Latches permitting operation from both sides of gate [with provision for padlocking

accessible from both sides of gate].3. Padlock and Chain: <Insert requirements for padlocks and chains if not City- furnished>.

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Denver Parks & RecreationStandard Specs

Updated: January 20184. Lock: [Manufacturer's standard] <Insert type> internal device[furnished in lieu of gate

latch].5. Closer: [Manufacturer's standard] <Insert type>.6. <Insert hardware items and accessories>.

2.7 FENCE FITTING

B. Post Caps: Provide for each post.***IF RETAINING SUBPARAGRAPH BELOW, COORDINATE WITH OPTIONS RETAINED FOR BARBED ARMS.******DO NOT USE CAPS WITH LOOPS FOR BALLFIELD FENCES. COORDINATE WITH PROJECT MANAGER.***

D. Rail Fittings: Provide the following:1. Top Rail Sleeves: Pressed-steel or round-steel tubing not less than six inches (6”) long.2. Rail Clamps: Line and corner boulevard clamps for connecting [intermediate] [and]

[bottom] rails in the fence line-to-line posts.***FIRST PARAGRAPH BELOW IS SUITABLE FOR POSTS 4 INCHES (102 MM) IN OD AND SMALLER. FOR POSTS EXCEEDING THIS DIMENSION, CONSULT MANUFACTURERS AND INSERT THICKNESS AND WIDTH OF BANDS. ***

E. Tension and Brace Bands: Pressed steel.

G. Truss Rod Assemblies: [Steel, hot-dip galvanized after threading] [PVC-coated hot-dip galvanized steel, color to match fence fabric] [Mill-finished aluminum] rod and turnbuckle or other means of adjustment.

PART 3- EXECUTION

3.1 SITE CONDITIONS***REVISE TO SUIT PROJECT***

PART 4- MEASUREMENT AND PAYMENT

4.1 MEASUREMENT [Consultant to select A or B]

A. Measurement will be based on the percentage complete for the lump sum contract amount for Chain Link Fencing.

B. Measurement will be made by the contract unit specified for Chain Link Fencing.  Measurement shall include the actual number of units of specified material(s) placed and accepted at the locations shown on the Contract Drawings, or as directed by the Project Manager, and in accordance with the Specifications.

4.2 PAYMENT

A. Payment will be made at the [contract unit] [lump sum contract] price, and shall include required materials, transportation, equipment, labor, including associated fittings, hardware, gates and all other related labor, materials and equipment required to construct and complete the fence <Insert additional items> as required in accordance with the Contract Drawings and Specifications.

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Denver Parks & RecreationStandard Specs

Updated: January 2018***EDIT AS NEEDED FOR UNIT PRICE OR LUMP SUM BASIS AS DIRECTED DURING DOCUMENTATION BY DENVER PARKS PROJECT MANAGER***

SECTION 32 32 19 - MODULAR BLOCK RETAINING WALL

PART 1 – GENERAL

1.3 REFERENCES

A. Project Geotechnical Report: [Cite report title, authorship, date]

1.4 PERFORMANCE REQUIREMENTS***DELETE THIS ARTICLE IF SEGMENTAL RETAINING WALLS ARE DESIGNED AND DETAILED ON DRAWINGS AND SUBSTITUTIONS ARE NOT ALLOWED; RETAIN FOR BASIS-OF-DESIGN OR PERFORMANCE SPECIFICATION.***

A. Basis of Design: Design of segmental retaining walls is based on products indicated. If comparable products of other manufacturers are proposed, provide engineering design for proposed products.

1.5 SUBMITTALS

E. Research/Evaluation Reports: For segmental retaining wall units and soil reinforcement, from <Insert applicable model code organization>.

F. Source quality control reports***RETAIN PARAGRAPH BELOW IF CONTRACTOR IS RESPONSIBLE FOR FIELD QUALITY CONTROL TESTING AND INSPECTING. ***

G. Field quality-control reports

1.6 QUALITY CONTROL

B. Mock ups: Build mockups to verify selections made under sample submittals and to demonstrate aesthetic effects.***RETAIN ON EOF TWO OPTIONS IN FIRST SUBPARAGRAPH BELOW IF RETAINING FIRST OPTION SHOW MOCK UP ON DRAWINGS. MOCK UP MAY BE DESIGNED AS SEPARATE DECORATIVE ELEMENT AND LEFT IN PLACE.***1. Build mockup of segmental retaining wall approximately seventy two inches (72”) long by not less thirty six inches (36”) high above finished grade at front of wall.

A. Include typical soil reinforcement.B. Include typical base and cap or finished top construction.C. Include backfill to typical finished grades at both sides of wall.D. Include typical end construction at one end of mockup.***AND/OR***E. Include thirty six inch (36”) return at one end of mockup, with typical corner construction.

PART 2 – PRODUCTS

2.2 MATERIALS

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Denver Parks & RecreationStandard Specs

Updated: January 2018A. Precast Concrete Modular Block Wall Units:

1. Precast wall units shall have a minimum twenty eight (28) day compressive strength of three thousand (3,000) PSI, and conform to ASTM C 1372. The concrete shall comply with freeze thaw durability with maximum water absorption not exceeding seven percent (7%) by weight.

2. Exterior dimensions shall not differ more than one sixteenth inch (1/16”) from manufacturers specifications.

3. All units shall be sound and free of cracks or other defects that would interfere with the proper placing of the unit or significantly impair the strength or permanence of the construction. The exposed surfaces of units shall be free of chips, cracks or other imperfections.

4. All exposed sides, except for top of cap units, shall be split face.5. Acceptable manufacturers: Versa-lok, Keystone, Mesa or approved equal.6. Color: [Insert desired color here].7. Shape and Texture: [Insert desired texture here] Provide units of basic shape and

dimensions indicated with machine-split textured exposed faces.8. Batter: Provide units that offset from course below to provide [at least] [1:24] [1:16]

[1:14] [1:8] [1:5] batter.9. Cap Units: Provide cap units of [shape indicated] [same shape as other units] with

smooth, as-cast top surfaces without holes or lugs.10. Special Units: Provide corner units, end units, and other shapes as needed to produce

segmental retaining walls of dimensions and profiles indicated and to provide texture on exposed surfaces matching face.***REVISE FIRST PARAGRAPH BELOW IF METAL PINS ARE ALLOWED; DELETE IF UNITS WITH INTEGRAL LUGS OR PROJECTIONS ARE USED EXCLUSIVELY. ***

B. Pins: Product supplied by segmental retaining wall unit manufacturer for use with units provided, made from nondegrading polymer reinforced with glass fibers.

PART 3 – EXECUTION

3.3 INSTALLATION

D. Subsequent Courses: Remove excess fill and debris from tops of units in course below. Place units in firm contact, properly aligned, and directly on course below. Verify presence of specified batter.***RETAIN ONE OR MORE OF FIVE SUBPARAGRAPHS BELOW DEPENDING ON REQUIREMENTS RETAINED FOR CONCRETE UNITS IN PART 2. ***1. For units with lugs designed to fit into holes in adjacent units, lay units so lugs are accurately

aligned with holes, and bedding surfaces are firmly seated on beds of units below.2. For units with lips at front of units, slide units as far forward as possible for firm contact with

lips of units below.3. For units with lips at bottom rear of units, slide units as far forward as possible for firm

contact of lips with units below.4. For units with pins, install pins and align units.5. For units with clips, install clips and align units.

3.4 FILL PLACEMENT***CONSULT GEOTECHNICAL ENGINEER OR SOIL REPORT FOR NECESSARY REVISIONS TO THIS ARTICLE***

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Denver Parks & RecreationStandard Specs

Updated: January 2018A. General: Comply with requirements in Division 31 Section "Earth Moving" NCMA's "Segmental

Retaining Wall Installation Guide," and segmental retaining wall unit manufacturer's written instructions.

***RETAIN FIRST PARAGRAPH BELOW IF USING SUBDRAINAGE PIPE. DELETE SLOPE REQUIREMENT IF INVERTS ARE SHOWN ON DRAWINGS. ***

E. Wrap subdrainage pipe with filter fabric and place in drainage fill as indicated on Contract Drawings. Install in conformance with Division 33 Section “Subdrainage Systems”.

PART 4- MEASUREMENT AND PAYMENT

4.1 MEASUREMENT [Consultant to select A or B]

A. Measurement will be based on the percentage complete for the lump sum contract amount for Modular Block Retaining Wall.

B. Measurement will be made by the contract unit specified for Modular Block Retaining Wall.  Measurement shall include the actual number of units of specified material(s) placed and accepted at the locations shown on the Contract Drawings, or as directed by the Project Manager, and in accordance with the Specifications.

4.2 PAYMENT

A. Payment will be made at the [contract unit] [lump sum contract] price, and shall include required materials, transportation, equipment, labor, design, survey, earthwork, sub-grade preparation, reinforcement grid, leveling pad, select fill, drainage material, stockpiling, disposing, hauling off, watering, dust control, erosion and sediment control, fine grading, <Insert additional items> as required in accordance with the Contract Drawings and Specifications. All required backfill of the wall shall be included in the payment and shall include furnishing and

placing required backfill materials within the reinforced zone, but shall not include earthwork or fill outside of the reinforced zone.

***EDIT AS NEEDED FOR UNIT PRICE OR LUMP SUM BASIS AS DIRECTED DURING DOCUMENTATION BY PROJECT MANAGER.***

SECTION 32 80 00 - IRRIGATION SYSTEMS

PART 2 – PRODUCTS

2.7 MISCELLANEOUS MATERIALS***EDIT AS NEEDED TO ACCOMMODATE PROJECT CONDITIONS***

PART 4- MEASUREMENT AND PAYMENT

4.1 MEASUREMENT [Consultant to select A or B]

A. Measurement will be based on the percentage complete for the lump sum contract amount for irrigation systems.

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Denver Parks & RecreationStandard Specs

Updated: January 2018B. Measurement will be made by the contract unit specified for Tree Retention and Protection.  Measurement shall include the actual number of units of specified material(s) placed and accepted at the locations shown on the Contract Drawings, or as directed by the Project Manager, and in accordance with the Specifications.

4.2 PAYMENT

A. Payment will be made at the [contract unit] [lump sum contract] price, and shall include required materials, transportation, equipment, labor, earthwork, stockpiling, disposing, hauling off, watering, dust control, erosion and sediment control, fine grading, <Insert additional items> furnishing and installation of seeds and mulches installation and maintenance of temporary protection by fencing or other means, watering and all maintenance required until Final Acceptance of the work as required in accordance with the Contract Drawings and Specifications.***EDIT AS NEEDED FOR UNIT PRICE OR LUMP SUM BASIS AS DIRECTED DURING DOCUMENTATION BY PROJECT MANAGER***

SECTION 32 84 33 - AUTOMATIC IRRIGATION CONTROLLERS

PART 1 – GENERAL

PART 3- EXECUTION

3.2 INSTALLATION OF IRRIGATION EQUIPMENT

C. Field Wiring Testing Requirements:***EDIT FOLLOWING 2 PARAGRAPHS TO SUIT PROJECT. 1ST IS APPROPRIATE IF EXISTING CONTROLLERS/WIRING IS PRESENT. IF NOT THE CASE, DELTE 1ST PARAGRAPH.***

1. Contractor shall provide a pre-installation Ohm test report of all field wires located within an existing controller prior to removing any wires from the terminals in the Automatic Irrigation Controller. Provide a report to the Project Manger of each zone wire tested, the Ohm readings for each wire, date of test, Automatic Irrigation Controller location. Please indicate in the report any wires or solenoids that do not meet standards for the operating ranges of the specified or existing materials.

2. Contractor shall provide an Ohm test report of all field wires prior to installing any wires at the Automatic Irrigation Controller terminals. Provide a report to the Project Manger of each zone wire tested, the Ohm readings for each wire, date of test, Automatic Irrigation Controller location. Please indicate in the report any wires or solenoids that do not meet standards for the operating ranges of the specified or existing materials. The report shall include the Ohm readings prior to removal of the existing controller and after relocation or installation of new Automatic Irrigation Controllers.

3.4 COMPLETION INSPECTION

B. Certify Central Control Operation: Central control operation will be verified by Denver Parks’ Certification of Central Control Checklist.

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Denver Parks & RecreationStandard Specs

Updated: January 2018Part 4- MEASUREMENT AND PAYMENT

4.1 MEASUREMENT [Consultant to select A or B]

A. Measurement will be based on the percentage complete for the lump sum contract amount for Automatic Irrigation Controllers.

B. Measurement will be made by the contract unit specified for Automatic Irrigation Controllers.  Measurement shall include the actual number of units of specified material(s) placed and accepted at the locations shown on the Contract Drawings, or as directed by the Project Manager, and in accordance with the Specifications.

4.2 PAYMENT

A. Payment will be made at the [contract unit] [lump sum contract] price, and shall include required materials, transportation, equipment, labor, earthwork, stockpiling, disposing, hauling off, watering, dust control, erosion and sediment control, fine grading, temporary protection by fencing or other means, all maintenance required, specified controller charts, zone maps, Record Drawings and verification checklist until Final Acceptance of the work <Insert additional items> as required in accordance with the Contract Drawings and Specifications.***EDIT AS NEEDED AS DIRECTED DURING DOCUMENTATION BY PROJECT MANAGER***

SECTION 32 91 13 - SOIL PREPARATION

PART 1 – GENERAL

1.5 QUALITY CONTROL

D. Testing Requirements:2. Fertility Testing: Soil-fertility analysis shall include the following:***REVISE REQUIRED ITEMS FOR ANALYSIS IN SUBPARAGRAPHS BELOW TO SUIT PROJECT; INSERT ADDITIONAL SUBPARAGRAPHS IF REQUIRED***

a. Percentage of organic matter.b. CEC, calcium percent of CEC, and magnesium percent of CEC.c. Soil reaction (soil acidity/alkalinity pH value).d. Buffered acidity or alkalinity.e. Lime estimate.f. Soil texture estimate.g. Nitrogen ppm.h. Phosphorous ppm.i. Potassium ppm.j. Manganese ppm.k. Zinc ppm.l. Iron ppm.m. Boron ppm.n. Copper ppm.o. Sodium ppmp. Sodium absorption ratio (SAR).

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Denver Parks & RecreationStandard Specs

Updated: January 2018q. Soluble-salts ppm.r. Presence and quantities of problem materials including salts and metals cited in

the Standard protocol. If such problem materials are present, provide additional recommendations for corrective action.

s. Other deleterious materials, including their characteristics and content of each.

E. Recommendations: Based on the test results, provide recommendations for soil treatments, amendments, and conditioners to be incorporated to produce a soil suitable for healthy, viable plant growth for the species indicated in the Contract Documents. Include at a minimum, recommendations for nitrogen, phosphorus, and potassium fertilization and for micronutrients. 1. Fertilizers and Soil Amendment Rates: State recommendations in weight per one thousand (1,000) sq. ft. for six-inch (6”) depth of soil. ***GENERALLY, ADJUST SOIL REACTION (PH) ONLY IN SOILS WHERE THE PH IS NEAR THE EXTREME ENDS OF THE ACCEPTABLE RANGE FOR THE PLANTS INDICATED***

PART 2 – PRODUCTS

2.1 MATERIALS

C. Soil ConditionersIn general, native seed areas shall receive Soil Conditioners unless otherwise noted or specified

by the Project Manager. For the purpose of bidding the contractor shall assume the products listed below will be applied at the rate specified by the manufacturer for each planting type identified in the Construction Documents. Once soils tests have been received and a determination is made on the proper amount to be added to the site-specific soils, the rate to be applied may be adjusted per the price based on the Schedule of Values for Soil Conditioner.]d. [Organic slow release fertilizer (6-1-1), acceptable product: “Biosol” or approved

equal.]e. [Granular Humic Acid soil conditioner, acceptable product: “Menefee Humate Soil

Conditioner”.]f. [Mycorrhizal Fungi: Dry, granular inoculant containing at least 5300 spores per lb

(0.45 kg) of vesicular-arbuscular mycorrhizal fungi and 95 million spores per lb (0.45 kg) of ectomycorrhizal fungi, thirty-three percent (33%) hydrogel, and a maximum of five and one-half percent (5.5%) inert material.]***EDIT AS REQUIRED TO SUIT PROJECT***

PART 4- MEASUREMENT AND PAYMENT

***EDIT AS NEEDED FOR UNIT PRICE OR LUMP SUM BASIS AS DIRECTED DURING DOCUMENTATION BY PROJECT MANAGER.***4.1 MEASUREMENT [Consultant to select A or B]

A. Measurement will be based on the percentage complete for the lump sum contract amount for Soil Preparation.

B. Measurement will be made by the contract unit specified for Soil Preparation.  Measurement shall include the actual number of units of specified material(s) placed and accepted at the

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Denver Parks & RecreationStandard Specs

Updated: January 2018locations shown on the Contract Drawings, or as directed by the Project Manager, and in accordance with the Specifications.

4.2 PAYMENT

Payment will be made at the [contract unit] [lump sum contract] price, and shall include required materials, transportation, equipment, labor, eathwork, stockpiling, disposing, hauling off, watering, dust control, erosion and sediment control, fine grading, <Insert additional items> as required in accordance with the Contract Drawings and Specifications.

SECTION 32 91 20 - TOPSOIL

PART 2- PRODUCTS

2.3 MANUFACTURED TOPSOIL***ELIMINATE IF MANUFACTURED SOIL IS NOT USED***

A. “Amended Topsoil” as manufactured by A1 Organics, 16350 WCR 76, Eaton, CO 80615 Ph: (970) 454-3492, (800) 776-1644 Fax: (970) 454-3232 www.a1organics.com, or substitution as approved by the Project Manager.

PART 3- EXECUTION

3.3 PLACING TOPSOIL***EDIT BELOW AS NEEDED***

A. Scarify compacted subgrade to a six-inch (6”) depth to bond topsoil to subsoil. Place topsoil to a minimum depth of six-inches (6”) after settlement. Topsoil shall be free from weeds, sod, and material larger than 1-inch (1”), toxic substances, litter or other deleterious material. Spread evenly and grade to elevations and slopes shown on Contract Drawings. Hand rake areas inaccessible to machine grading.

B. Utilize salvaged topsoil as the top layer to the extent available. If sufficient on-site material is not available, the Contractor shall furnish and install imported topsoil in the manner described above. Topsoil shall mixed thoroughly with the salvaged topsoil prior to placement.

C. Utilize manufactured topsoil as the top layer, placing over scarified subgrade to a depth of six-inches (6”).

PART 4- MEASUREMENT AND PAYMENT

4.1 MEASUREMENT [Consultant to select the type of topsoil used and measurement used for each]

A. [On-Site Stockpiled Topsoil:] [Measurement will be based on the percentage complete for the lump sum contract amount for Topsoil.] [Measurement will be made by the contract unit

specified for Topsoil.  Measurement shall include the actual number of units of specified material(s) placed and accepted at the locations shown on the Contract Drawings, or as directed by the Project Manager, and in accordance with the Specifications.]

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Denver Parks & RecreationStandard Specs

Updated: January 2018B. [Imported Topsoil:] [Measurement will be based on the percentage complete for the lump

sum contract amount for Topsoil.] [Measurement will be made by the contract unit specified for Topsoil.  Measurement shall include the actual number of units of specified material(s) placed and accepted at the locations shown on the Contract Drawings, or as directed by the Project Manager, and in accordance with the Specifications.]

C. [Manufactured Topsoil:] [Measurement will be based on the percentage complete for the lump sum contract amount for Topsoil.] [Measurement will be made by the contract unit specified for Topsoil.  Measurement shall include the actual number of units of specified material(s) placed and accepted at the locations shown on the Contract Drawings, or as directed by the Project Manager, and in accordance with the Specifications.]

4.2 PAYMENT

A. Payment will be made at the [contract unit] [lump sum contract] price, and shall include required materials, transportation, equipment, labor, earthwork, stripping, stockpiling and placing of topsoil, loading, transporting, re-transporting to new locations (from onsite or off site stockpiles) spreading to specified depth disposing of unusable materials, hauling off, watering, dust control, erosion and sediment control, finish grading, <Insert additional items> required to bring the site to the required lines and grades as required in accordance with the Contract Drawings and Specifications.

SECTION 32 92 19 - TURFGRASS SEEDING

PART 1 – GENERAL

1.5 SUBMITTALS

C. Certification of Grass Seed: From seed vendor for each grass-seed monostand or mixture stating the botanical and common name, percentage by weight of each species and variety, and percentage of purity, germination, and weed seed. Include the year of production and date of packaging.***RETAIN SUBPARAGRAPHS BELOW FOR TURFGRASS SOD OR SEED AS APPROPRIATE***

E. Material Test Reports:***RETAIN THE PARAGRAPHS BELOW AS APPROPRIATE FOR TOPSOIL AND PROPOSED AMENDMENTS***1. Soil analysis for each topsoil to be used.2. Analysis for manufactured topsoil.3. Analysis for each soil amendment. 4. Analysis for each soil conditioner.5. Analysis for each amended planting soil. 6. Analysis for native soils at the project site.

1.6 QUALITY CONTROL

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Denver Parks & RecreationStandard Specs

Updated: January 2018A. Maintenance Qualifications: The maintenance contractor shall not be more than two hours

normal travel time from the project site.1. Pesticide Applicator: State licensed, commercial.***RETAIN APPLICABLE SUBPARAGRAPHS BELOW; REVISE TO SUIT PROJECT. ***

a. Pesticide Applicator: Applicators shall be a Colorado State Licensed, Commercial Applicator.

1.10 WARRANTY***COORDINATE WARRANTY PERIOD DURATION WITH PROJECT MANAGER***

PART 2- PRODUCTS

2.2 PESTICIDES***RETAIN APPLICABLE PARAGRAPHS IN THIS ARTICLE; REVISE TO SUIT PROJECT. ***

A. General: Pesticide, registered and approved by EPA, acceptable to authorities having jurisdiction, and of type recommended by manufacturer for each specific problem and as required for Project conditions and application. Do not use restricted pesticide unless authorized in writing by Project Manager and authorities having jurisdiction.1. Pre-Emergent Pesticide (Selective and Non-Selective): Use only with approval by Project Manager. Effective for controlling the germination or growth of weeds within planted areas at the soil level directly below the mulch layer.2. Post-Emergent Pesticide: “Round-up” by Monsanto, or approved equal.

2.3 EROSION-CONTROL MATERIALS***RETAIN APPLICABLE PARAGRAPHS BELOW, OR REVISE OR INSERT OTHER EROSION-CONTROL MATERIALS. ***

A. Erosion-Control Blankets: Biodegradable wood excelsior, straw, or coconut-fiber mat enclosed in a photodegradable plastic mesh. Include manufacturer's recommended steel wire staples, six (6”) inches long.

PART 3- EXECUTION

3.3 PREPARATION

F. Fine Grading: See Division 32 Section “Soil Preparation”. Maintain positive drainage, prevent ponding and direct run-off into catch basins, drainage structures, etc., and provide well-contoured surface prior to proceeding. A firm weed-free seed bed is required. Protect structures, utilities, sidewalks, pavements, and other facilities, trees, shrubs, and plantings from damage caused by planting operations. Obtain Project Manager’s approval of finished grade prior to proceeding with seeding operations.***RETAIN FIRST SUBPARAGRAPH BELOW FOR HYDROSEEDING***1. Protect adjacent and adjoining areas from hydromulching overspray.2. Protect grade stakes set by others until directed to remove them.

3.5 PREPARATION FOR EROSION-CONTROL MATERIALS***EDIT AS NECESSARY TO SUIT PROJECT***

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Denver Parks & RecreationStandard Specs

Updated: January 2018PART 4- MEASUREMENT AND PAYMENT

4.1 MEASUREMENT [Consultant to select A or B]

A. Measurement will be based on the percentage complete for the lump sum contract amount for Turfgrass Seeding.

B. Measurement will be made by the contract unit specified for Turfgrass Seeding.  Measurement shall include the actual number of units of specified material(s) placed and accepted at the locations shown on the Contract Drawings, or as directed by the Project Manager, and in accordance with the Specifications.

4.2 PAYMENT

A. Payment will be made at the [contract unit] [lump sum contract] price, and shall include required materials, transportation, equipment, labor, earthwork, stockpiling, disposing, hauling off, watering, dust control, erosion and sediment control, fine grading, <Insert additional items> furnishing and installation of seeds and mulches installation and maintenance of temporary protection by fencing or other means, watering and all maintenance required until Final Acceptance of the work as required in accordance with the Contract Drawings and Specifications.***EDIT AS NEEDED FOR UNIT PRICE OR LUMP SUM BASIS AS DIRECTED DURING DOCUMENTATION BY PROJECT MANAGER***

SECTION 32 92 20 - NATIVE SEEDING

PART 1 – GENERAL

1.2 SUMMARY***EDIT FOLLOWING LIST AS NECESSARY TO SUIT PROJECT***

A. This Section includes requirements for the installation of native grass seed and specified mulch, straw matting if applicable, and maintenance of the seeded areas is achieved as outlined in Article 1.9.B, “Maintenance”.

1.3 DEFINITIONS***EDIT FOLLOWING LIST AS NECESSARY TO SUIT THE PROJECT***A. Finish Grade: Elevation of finished surface of planting soil.B. Pesticide: A substance or mixture intended for preventing, destroying, repelling, or

mitigating a pest. This includes insecticides, miticides, herbicides, fungicides, rodenticides, and molluscicides. It also includes substances or mixtures intended for use as a plant regulator, herbicide, defoliant, or desiccant.

C. Pests: Living organisms that occur where they are not desired or that cause damage to plants, animals, or people. These include insects, mites, grubs, mollusks (snails and slugs), rodents (gophers, moles, and mice), unwanted plants (weeds), fungi, bacteria, and viruses.

D. Planting Soil: Standardized topsoil; existing, native surface topsoil; existing, in-place surface soil; imported topsoil; or manufactured topsoil that is modified with soil amendments and perhaps fertilizers to produce a soil mixture best for plant growth.

E. Subgrade: Surface or elevation of subsoil remaining after excavation is complete, or top surface of a fill or backfill before planting soil is placed.

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Denver Parks & RecreationStandard Specs

Updated: January 2018F. Subsoil: All soil beneath the topsoil layer of the soil profile, and typified by the lack of

organic matter and soil organisms.G. Surface Soil: Soil that is present at the top layer of the existing soil profile at the Project site.

In undisturbed areas, the surface soil is typically topsoil, but in disturbed areas such as urban environments, the surface soil can be subsoil.

H. Weeds: Including but not limited to Goathead, Bindweed, Twitch, Dandelion, Jimsonweed, Knapweed, Quackgrass, Horsetail, Morning Glory, Rush Grass, Mustard, Lambsquarter, Chickweed, Cress, Crabgrass, Canadian Thistle, Nutgrass, Poison Oak, Blackberry, Tansy Ragwort, Bermuda Grass, Johnson Grass, Poison Ivy, Nut Sedge, Nimble Weed, Bent Grass, Wild Garlic, Perennial Sorrel, and Broom Grass.

PART 2- PRODUCTS

2.1 MATERIALS

C. Seed Mixes:***SEED MIXES LISTED ARE FOR EXAMPLE ONLY AND ARE TO BE REVISED BASED ON INTENDED GRASSLAND COMMUNITY, SOIL TYPES, MOISTURE AVAILABILITY, ETC***

PART 3- EXECUTION

3.5 MULCHING***EDIT THE FOLLOWING LIST TO REFLECT SPECIFIC PROJECT CONDITIONS***

A. Straw Mulch Application: Comply with Section 213 – Mulching of the CDOT Standards and Specifications for Road and Bridge Construction.

B. Hydromulch Application: Utilize an approved hydromulcher to apply cellulose fiber at a rate of two-thousand (2,000) pounds per acre. Apply tackifier to comply with CDOT Section 213.02 – Mulching. Contractor shall provide verification of application rates in the form of ship tickets.

C. Mulching shall not be installed when surface water is present resulting from rains, melting snow irrigation or other causes.

D. Areas not properly mulched, or any damage that may occur during construction is the responsibility of the Contractor and shall be repaired and re-mulched in an acceptable manner at the Contractor’s expense. Mulching removed by wind, rain or other causes prior to acceptance shall be re-established by the Contractor at his own expense.

E. The seeded area shall be mulched within eight (8) hours of seeding. Areas not mulched within twenty-four (24) hours after seeding must be re-prepped and re-seeded with the specified seed mix at the Contractor’s expense.

F. Contractor shall remove all hydromulch from and surface area not specified for seeding, including but not limited to plant materials, fences, paved areas, signs, mulch beds, irrigation components and all other objects as directed by the Project Manager.

PART 4- MEASUREMENT AND PAYMENT

4.1 MEASUREMENT [Consultant to select A or B]

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Denver Parks & RecreationStandard Specs

Updated: January 2018A. Measurement will be based on the percentage complete for the lump sum contract amount for

Native Seeding. B. Measurement will be made by the contract unit specified for Native Seeding.  Measurement

shall include the actual number of units of specified material(s) placed and accepted at the locations shown on the Contract Drawings, or as directed by the Project Manager, and in accordance with the Specifications.

4.2 PAYMENTA. Payment will be made at the [contract unit] [lump sum contract] price, and shall include

required materials, transportation, equipment, labor, earthwork, stockpiling, disposing, hauling off, watering, dust control, erosion and sediment control, fine grading, <Insert

additional items> furnishing and installation of seeds and mulches installation and maintenance of temporary protection by fencing or other means, watering and all maintenance required until Final

Acceptance of the work as required in accordance with the Contract Drawings and Specifications.

SECTION 32 92 23 SODDING

PART 1 – GENERAL

1.2 SUMMARY***EDIT THE FOLLOWING LIST TO REFLECT SPECIFIC PROJECT CONDITIONS***

B. Related Sections:1. Division 01 Section “Erosion and Sedimentation Control”.2. Division 31 Section “Earth Moving”.3. Division 31 Section “Watering”.4. Division 32 Section “Irrigation System”.5. Division 32 Section “Automatic Irrigation Controllers”6. Division 32 Section “Soil Preparation”.7. Division 32 Section “Topsoil”.8. Division 32 Section “Trees, Plants, and Groundcovers”.

1.4 SUBMITTALS***EDIT FOLLOWING LIST AS NECESSARY TO REFLECT PROJECT CONDITIONS***

A. See Division 01 Section “Submittals” for submittal requirements.

B. Product Data: For each type of product indicated. Pesticides: Include product label and manufacturer's application instructions specific to

this Project.

C. Sod Certificates: State, Federal and other inspection certificates for sod shall be provided to the Project

Manager a minimum of 10 working days prior to anticipated date of sod delivery. Submit a list of varieties contained in the sod, and include the source and origin for

approval by the Project Manager.

D. Qualification Data: For qualified landscape Installer.

E. Product Certificates: For soil amendments and fertilizers, from manufacturer.

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Denver Parks & RecreationStandard Specs

Updated: January 2018F. Material Test Reports: For existing-in-place surface soil.

Soil analysis for each topsoil to be used. Analysis for manufactured topsoil. Analysis for each soil amendment. Analysis for each amended planting soil.

G. Analysis and standards: Wherever applicable, for non-packaged materials, provide two copies of analysis by recognized laboratory made in accordance with methods established by the Association of Official Agriculture Chemists.

H. Planting schedule: Submit in writing two copies of proposed planting schedule, indicating dates for topsoil placing, site preparation, pesticide treatments, soil preparation, sodding, seeding, and coordination with plant procurement, planting soil preparation, plant delivery and planting. Schedule all Work during specified planting seasons. Once accepted, revise dates only as approved in writing, after documentation of reasons for delays.

I. Maintenance Instructions: Recommended procedures for maintenance of turf and dryland grasses during a calendar year. Submit before expiration of required initial maintenance periods.

J. Contract Closeout Submittals: Operating and Maintenance Data: At completion of work, submit one digital copy and

two hard copies to the Project Manager in accordance with Division 01 Section “Contract Closeout’. Include directions for irrigation, aeration, mowing, fertilizing and spraying as required for continued and proper maintenance through full growing season and dormant period.

Warranty for Turfgrass Sod Areas: At completion of work, furnish written warranty to Project Manager based upon specified requirements.

PART 4- MEASUREMENT AND PAYMENT

4.1 MEASUREMENT [Consultant to select A or B]

A. Measurement will be based on the percentage complete for the lump sum contract amount for Sodding.

B. Measurement will be made by the contract unit specified for Sodding.  Measurement shall include the actual number of units of specified material(s) placed and accepted at the locations shown on the Contract Drawings, or as directed by the Project Manager, and in accordance with the Specifications.

4.2 PAYMENT

A. Payment will be made at the [contract unit] [lump sum contract] price, and shall include required materials, transportation, equipment, labor, earthwork, loading, transporting, stockpiling, disposing, hauling off, watering, dust control, erosion and sediment control, fine grading, <Insert additional items> temporary protection by fencing or other means, watering and all maintenance required until Final Acceptance of the work as required in accordance with the Contract Drawings and Specifications.***REVISE AS NEEDED, AND AS DIRECTED BY THE PROJECT MANAGER. ***

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Denver Parks & RecreationStandard Specs

Updated: January 2018

SECTION 32 93 00 TREES, PLANTS, AND GROUNDCOVERS

PART 2- PRODUCTS

2.5 TREE-STABILIZATION MATERIALS***EDIT AS NEEDED TO SUIT PROJECT CONDITIONS***

PART 4- MEASUREMENT AND PAYMENT

4.1 MEASUREMENT [Consultant to select A or B]

A. Measurement will be based on the percentage complete for the lump sum contract amount for Tree Retention and Protection.

B. Measurement will be made by the contract unit specified for Tree Retention and Protection.  Measurement shall include the actual number of units of specified material(s) placed and accepted at the locations shown on the Contract Drawings, or as directed by the Project Manager, and in accordance with the Specifications.

4.2 PAYMENT

A. Payment will be made at the [contract unit] [lump sum contract] price, and shall include required materials, transportation, equipment, and labor, <Insert additional items> required to establish tree protection, and remove the tree protection at the end of the project as required in accordance with the Contract Drawings and Specifications. ***EDIT AS NEEDED FOR UNIT PRICE OR LUMP SUM BASIS AS DIRECTED DURING DOCUMENTATION BY PROJECT MANAGER***

***LIST BELOW IS AN EXAMPLE FOR FORMATTING. INCLUDE ALL TREES, SHRUBS, GROUNDCOVERS AS SHOWN ON CONTRACT DRAWINGS***

B. PLANTS TO BE PAID FOR:

Item # Item Description Size Unit Quantity Unit Price Item Total 1.1 Northern Red Oak 4” cal ea 23 $950.00 $21,850.001.2 Catalpa 3” cal ea 10 $600.00 $6,000.00

SECTION 32 96 43 TREE TRANSPLANTING

PART 1 – GENERAL

1.3 DEFINITIONS

***Retain PARAGRAPH BELOW, Caliper (DBH)" ONLY if LARGER TREES ARE PRESENT ON THE PROJECT***

C. Caliper (DBH): Diameter breast height; diameter of a trunk as measured by a diameter tape at a height 54-inches (54”) above the ground line for trees with caliper of eight-inches (8”) or greater as measured at a height of twelve-inches (12”) above the root flair.

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Denver Parks & RecreationStandard Specs

Updated: January 2018

1.4 SUBMITTALS

C. Pruning Schedule: Written schedule prepared by arborist detailing scope and extent of pruning each tree in preparation for and subsequent to transplanting.***EDIT FOLLOWING LIST AS NECESSARY TO REFLECT PROJECT CONDITIONS***1. Species and size of plant.2. Location on site plan. Include unique identifier for each.3. Reason for pruning.4. Seasonal limitations on pruning.5. Preparatory Pruning: Time schedule and description of preparatory pruning to be performed.6. Indicate time in months preceding the extraction of the tree.7. Indicate diameter of root ball and depth of root pruning for each tree.8. Description of root and crown pruning during and subsequent to transplanting.9. Description of maintenance following pruning.

1.5 QUALITY CONTROLA. Preinstallation Conference: Conduct conference at project site.B. Review methods and procedures related to transplanting work include, but are not limited to,

the following:C. Construction schedule. Verify availability of materials, personnel, equipment, and unimpeded

access needed to make progress and avoid delays.D. Tree and plant protection.E. Tree maintenance.F. Arborist's responsibilities.G. <Insert agenda items>.

1.9 WARRANTY***EDIT FOLLOWING LIST AS NECESSARY TO REFLECT PROJECT CONDITIONS***

2. Warranty Periods from Date of Substantial Completion:***EDIT FOLLOWING LIST AS NECESSARY TO REFLECT PROJECT CONDITIONS. MAY REQUIRE A LIST OF TREE SIZES IF A SIGNIFICANT NUMBER OF TREES OF VARYING SIZES WILL BE TRANSPLANTED.***A. Trees: 24 months.

1.10 MAINTENANCE SERVICE***VERIFY FOLLOWING PARAGRAPH WITH PROJECT MANAGER***

B. Continuing Maintenance Proposal: From tree-service firm to City, in the form of a standard yearly (or other period) maintenance agreement, starting on date initial maintenance service is concluded. State services, obligations, conditions, and terms for agreement period and for future renewal options.

PART 2- PRODUCTS

2.5 TREE-STABILIZATION MATERIALS***COORDINATE FOLLOWING MATERIALS WITH DRAWING AND DETAILS***A. Trunk-Stabilization Materials:1. Upright and Guy Stakes: Rough-sawn, sound, new softwood with specified wood

preservative treatment by pressure process, free of knots, holes, cross grain, and other defects, 2-inch (2”) diameter by length indicated, pointed at one end.

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Denver Parks & RecreationStandard Specs

Updated: January 20182. Wood Deadmen: Timbers measuring eight inches (8”) in diameter and forty eight inches

(48”) long, treated with specified wood preservative treatment by pressure process.3. Guys and Tie Wires: ASTM A 641/A 641M, Class 1, #14 galvanized-steel wire, two-strand,

twisted.4. Guy springs: Submit manufacturer’s product information for approval.5. Tree-Tie Webbing: UV-resistant nylon webbing with brass grommets, size as indicated.6. Flags: One-half-inch (1/2”) diameter PVC pipe, length as indicated.

PART 4- MEASUREMENT AND PAYMENT

4.1 MEASUREMENT [Consultant to select A or B]

A. Measurement will be based on the percentage complete for the lump sum contract amount for Tree Retention and Protection.

B. Measurement will be made by the contract unit specified for Tree Retention and Protection.  Measurement shall include the actual number of units of specified material(s) placed and accepted at the locations shown on the Contract Drawings, or as directed by the Project Manager, and in accordance with the Specifications.

4.2 PAYMENT

A. Payment will be made at the [contract unit] [lump sum contract] price, and shall include required materials, transportation, equipment, and labor, <Insert additional items> required to establish tree protection, and remove the tree protection at the end of the project as required in accordance with the Contract Drawings and Specifications. ***REVISE AS NEEDED, AND AS DIRECTED BY THE PROJECT MANAGER. ***

SECTION 32 97 00 - LANDSCAPE MAINTENANCE

PART 3 – EXECUTION

3.2 NATIVE SEEDING AREAS

D. Watering: All watering shall be done in such a way as to encourage establishment, deep root growth and drought tolerance. See Article 3.4 “Irrigation & Water Management”, below.1. Non-Irrigated Native: Watering in non-irrigated native areas shall consist of watering of

all existing trees and shrubs as well as any new trees or shrubs that are to be watered for establishment. Refer to Division 31 Section “Watering” for requirements.

2. [Choose one of three] Watering: Utilize irrigation system to water native seeded areas to obtain establishment of an acceptable grass stand and to supplement natural moisture levels during dry periods. a. Schedule watering to prevent wilting, puddling, erosion, and displacement of

seed or mulch. Lay out temporary watering system to avoid walking over muddy or newly planted areas. Obtain approval of Project Manager of irrigation system and schedule proposed for use.

b. Water native grasses with fine spray at a minimum rate of one-half inch (1/2”) per week for six (6) weeks after planting unless rainfall precipitation is adequate.

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Denver Parks & RecreationStandard Specs

Updated: January 2018c. Do not over-water in a manner which kills drought-tolerant components of the

seed mix.3. [Choose one of three] Watering: Install and maintain temporary piping, hoses, and

watering equipment to convey water from sources and to keep soil uniformly moist.a. Schedule watering to prevent wilting, puddling, erosion, and displacement of

seed or mulch. Lay out temporary watering system to avoid walking over muddy or newly planted areas. Obtain approval of Project Manager of irrigation system and schedule proposed for use.

b. Water native grasses with fine spray at a minimum rate of one-half inch (1/2”) per week for six (6) weeks after planting unless rainfall precipitation is adequate.

c. Do not over-water in a manner which kills drought-tolerant components of the seed mix.

4. [Choose one of three] Watering: Utilize watering trucks to supplement natural moisture levels during dry periods.a. Apply water in a manner that prevents wilting, puddling, erosion, and

displacement of seed or mulch. Obtain approval of Project Manager of truck/application type and schedule proposed for use.

b. Do not over-water in a manner which kills drought-tolerant components of the seed mix.

c. This frequency and rate of irrigation is to be approved by the Project Manager. Contractor will be paid through a separately negotiated Change Order for this work.

4.1 MEASUREMENT [Consultant to select A or B]

A. Measurement will be based on the percentage complete for the lump sum contract amount for Trees, Plants, and Groundcovers.

B. Measurement will be made by the contract unit specified for Trees, Plants, and Groundcovers.  Measurement shall include the actual number of units of specified material(s) placed and accepted at the locations shown on the Contract Drawings, or as directed by the Project Manager, and in accordance with the Specifications.

4.2 PAYMENT

A. Payment will be made at the [contract unit] [lump sum contract] price, and shall include required materials, transportation, equipment, and labor, <Insert additional items> required to establish tree protection, and remove the tree protection at the end of the project as required in accordance with the Contract Drawings and Specifications. ***REVISE AS NEEDED, AND AS DIRECTED BY THE PROJECT MANAGER. ***

SECTION 33 44 00 - STORM SEWERAGE

PART 1 – GENERAL

1.2 SUMMARY

C. Related Work:***EDIT FOLLOWING LIST AS NECESSARY TO REFLECT PROJECT CONDITIONS***

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Denver Parks & RecreationStandard Specs

Updated: January 20181. Division 01 Section “Layout of Work and Surveys”.2. Division 01 Section “Contractor Quality Control”.3. Division 01 Section “Erosion and Sedimentation Control”.4. Division 01 Section “Materials and Equipment”.5. Division 01 Section “Tree Retention and Protection”.6. Division 31 Section “Earth Moving”.7. Division 31 Section “Excavation and Backfilling of Trenches”.8. Division 32 Section “Sodding”.

PART 4- MEASUREMENT AND PAYMENT

4.1 MEASUREMENT [Consultant to select A or B]

A. Measurement will be based on the percentage complete for the lump sum contract amount forStorm Sewerage.

B. Measurement will be made by the contract unit specified for Storm Sewerage.  Measurement shall include the actual number of units of specified material(s) placed and accepted at the locations shown on the Contract Drawings, or as directed by the Project Manager, and in accordance with the Specifications.

4.2 PAYMENT

A. Payment will be made at the [contract unit] [lump sum contract] price, and shall include required materials, transportation, equipment, and labor, <Insert additional items> required to establish tree protection, and remove the tree protection at the end of the project as required in accordance with the Contract Drawings and Specifications.

***REVISE AS NEEDED, AND AS DIRECTED BY THE PROJECT MANAGER. ***

SECTION 33 46 00 - SUBDRAINAGE SYSTEMS

PART 1 – GENERAL

1.2 SUMMARY

B. Related Work: ***EDIT FOLLOWING LIST AS NECESSARY TO REFLECT PROJECT CONDITIONS.***

1. Division 01 Section “Layout of Work and Surveys”.2. Division 01 Section “Contractor Quality Control”.3. Division 01 Section “Erosion and Sedimentation Control”.4. Division 01 Section “Materials and Equipment”.5. Division 01 Section “Tree Retention and Protection”.6. Division 31 Section “Earth Moving”.7. Division 31 Section “Excavation and Backfilling of Trenches”.8. Division 32 Section “Sodding”.9. Division 33 Section “Storm Sewerage”.

Part 2- PRODUCTS

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Denver Parks & RecreationStandard Specs

Updated: January 20182.1 MATERIALS***EDIT FOLLOWING LIST AS NECESSARY TO REFLECT PROJECT CONDITIONS***A. PVC Under Drain: ASTM D2729, minimum four-inch (4”) diameter, plain or perforated type as

indicated on the Contract Drawings, with required fittings. Perforated pipe shall comply with requirements of ASTM 272a, with 2 rows of evenly spaced three eighths inch (3/8”) diameter perforations, one hundred twenty (120)-degrees apart, providing a minimum number of holes of four (4) per foot.

B. Vertical Drain System: “Multi-flow Drainage Systems” or approved equal.

C. Geotextile Fabric: Non-woven fabric “140N” by Tencate-Mirafi or acceptable substitution.

D. Bedding Material: Maximum one quarter-inch (1/4”) squeegee material, shall be free of shale, lay, friable materials, organics and debris.

PART 4- MEASUREMENT AND PAYMENT

4.1 MEASUREMENT [Consultant to select A or B]

A. Measurement will be based on the percentage complete for the lump sum contract amount for Subdrainage Systems.

B. Measurement will be made by the contract unit specified for Subdrainage Systems.  Measurement shall include the actual number of units of specified material(s) placed and accepted at the locations shown on the Contract Drawings, or as directed by the Project Manager, and in accordance with the Specifications.

4.2 PAYMENT

A. Payment will be made at the [contract unit] [lump sum contract] price, and shall include required materials, transportation, equipment, and labor, <Insert additional items> required to establish tree protection, and remove the tree protection at the end of the project as required in accordance with the Contract Drawings and Specifications.

***REVISE AS NEEDED, AND AS DIRECTED BY THE PROJECT MANAGER. ***