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County Operational Requirements andPublic Space Considerations

Study Area OverviewStaff Name, Department (DEPT ACRONYM)

26/Old Dominion Task ForceMeeting #2: December 6, 2018

26/Old Dominion Task Force 2

Outline

1. Overview of Current Operationsa. Leaf Storageb. Mulch Distributionc. Salt Staging and Distribution

2. Long-Term Operational Needsa. Maintain Current Leaf, Mulch, and Salt Operationsb. Provide Shift Change & Support Facilities

3. Existing Site Environmental Practices

4. Public Space Considerationsa. Maintain Donaldson Run Trail Headb. Provide Public Space/Park


Primary Objective for 26th/Old Dominion Site

To improve effectiveness and efficiency of snow operation services for the North side of the County in the most environmentally and community sensitive manner feasible, while maintaining existing leaf and mulch operations1. Winter Storm Response Facility

a. Enables faster completion of snow and ice clearing or treatment(gain varies by storm event, but typically results in a 10-15% gain)

b. Provides a cost-effective and higher level of service by reducing deadhead time during treatment

c. Chain shop keeps trucks operational during icy or heavy snow conditions

2. At the same time:a. Maintain Leaf Storage and Mulch Distribution operationsb. Address current site deficiencies including zoning setbacks,

appropriate screening and buffers relative to adjacent uses


CURRENT OPERATIONS


Current Operations – Leaf Storage & Mulch Distribution

Leaf Storage

Area

Mulch Distribution

Area



Leaf Storage includes the collection, storage, and off-site processing during the winter months (Nov.- Feb.)

26th St N. site stores 60% of leaves collected in Arlington's leaf vacuum program (approx. 2,300 tons serving 33 Civic Associations)

Existing site can:• Serve 16 leaf

collection trucks

• Average four loads/day/truck

• Maximum six loads/day/truck



Mulch Distribution represents a satellite mulch distribution center for residents throughout the year

26th St N. Site Characteristics:• Approx. 1,000 tons of mulch

delivered to site annually

• Separate bays for wood and leaf mulch; size varies w/ season

• Mulch deliveries vary with season:

• Peak wood mulch demand - July (18 deliveries)

• Peak leaf mulch demand - April (14 deliveries)


Current Operations – Salt Staging and Distribution

Interim Salt Storage Facility

Salt Dome



Salt Operations include the staging and distribution of salt during each winter and spring (Nov.-Apr.)

1. Winter Operations (Nov.-Apr.):a. Staging for 6,000 Tons of salt

(60% of County inventory) b. Use of up to 24 trucks &

one (1) Loader/Backhoe per any 12-hr shift

c. Portable toilet facility

2. Non-Winter operations (May-Oct.)a. Salt replenishmentb. Equipment and

facility maintenance



Salt Loading and Refilling • A backhoe (pictured) or loader is required to load salt from

storage facility onto trucks• Salt refilling frequency dependent on truck size and storm severity.

o Larger trucks could be as frequent as every 3-6 hourso Smaller trucks could be as frequent as every 1-2 hours


LONG-TERMOPERATIONAL NEEDS


Long-Term Operational Needs - Leaf Storage

Leaf Storage Program -30,000 to 35,000 SF• Seasonally used for leaf collection

storage (winter months: Nov-Feb)

• Opportunity for Contractor laydown& intermittent storage (Mar-Oct)for various County infrastructure projects (JFAC use consideration)

• Site area considerationso Leaf truck drop-off,

turn radii, fire lanes, site circulation and storm management

o Safety and Securityconsiderations


Long-Term Operational Needs - Mulch Distribution

Mulch Distribution Program - 3,500 to 5,000 SF• Loading & unloading of mulch, fire lanes, site circulation, and

storm water management

• Public access required

• Security fencing not required


Long-Term Operational Needs - Winter Storm Response

Design Criteria for Salt Operations and Support Facilities:• Full storm response activation

• ~30-40% of site reserved for site circulation, buffering, setbacks, ingress/egress

• Secure and un-secured access

• Parking – peak demand for approximately 100 spaces

o Peak demand only occurs during storm events

o Design process will evaluate on-site and off-site solutions for operational trucks, drivers, and support staff

• Compliance with all State and County regulatory requirements(Environmental, ADA, building codes, zoning, etc.)



• Overall Program area of approx. 60,000 SF

• Maintain 6,000 Ton capacity

• Site elements to include:• Covered storage of (~25) V-box spreaders & plows

• Brine Mixing & Storage Tanks Program for road pre-treatment

• Brine making machine• Four 2,000-5,000 Gal. Capacity Tanks (salt brine solution)• Efficiency of operations before storm equally important



Additional Site Elements to include: Shift Change Facility

• Shift change operations during the winter months

• Evaluate potential off-season uses

• Architecturally appropriate, depending on location

• Chain Shop

• Pull through bay for installing/storing chains• Collocated with the salt storage structure,

spreaders and part of the shift change facility• Light vehicle & equipment maintenance

• Administrative Office

• Break Area/Dispatch operations/Training• Seating with tables for up to 40 occupants



Shift Change Facility - Support Spaces

• Restrooms

• Kitchenette

• Locker Room Storage

• Telecom Room

• Emergency Generator

• Circulation

• Parking


Long-Term Operational Needs - Overall Site

Site planning will need to reserve additional areas to allow for:

Fire Lanes

Ingress & Egress to the site

Large vehicle turning radii

Site security

Zoning Setbacks

Stormwater Management Facilities

Buffering and Screening*

*Site screening and/or buffer space requirements TBD, after placement of major program elements is determined


Long-Term Operational Needs - Program Summary

* Estimated areas are subject to change based on further design, inclusion of screening and buffers, and evaluation of parking alternatives. Site design will iterate with intent of dual-use and opportunities for efficient configuration of site elements.

Estimated Range of Space Needs* (in SF) Existing On-site (in SF)

Leaf Storage 30,000-35,000 37,000

Mulch Distribution 3,500-5,000 5,000

Salt Operations 55,000-65,000 57,000

Shift Change Facility 4,000-5,000 N/A

Parking (peak parking) 25,000-35,000 Limited/Unmarked at Site

Additional Site Elements (Site circulation, buffers, etc.) 30-40% Included in Programs

Above/currently deficient

Total Site Area Needed* 3.5-4.5 acres 2.3 acres


EXISTING SITE ENVIRONMENTAL

PRACTICES


Existing Site Environmental Practices

• Environmental mitigation measures have been implemented on site to facilitate Leaf Storage & Mulch Distribution along with Salt Operations.

• Both operations require compliance with their respective Stormwater Pollution Prevention Plans (SWPPP) for the defined site use.

• Primary pollutants of concern at this facility include sediment, nutrients, hydrocarbons (fuel, oil), hydraulic fluid, and trash.


QUESTIONS


PUBLIC SPACECONSIDERATIONS


DONALDSON RUN TRAIL


Donaldson Run Trail

• Approximately 5,000 feet long

• Connects 26th Street N. to Military Road

• Extends further to Potomac River as an unpaved nature trail

• Maintained byDepartment of Parks & Rec


Donaldson Run - Trail Head

• No official County definition for a"trail head"

• Generally represents the area where the trail intersects with the right-of-way and allows for the public to access the trail

• Amenities may include seating, signage, wayfinding, trash receptacles, pavement striping, drinking fountain, bike repair stand

• Suggested 2-foot shoulder for pedestrian/bike pull-off and maintenance access

NORTH


DRAFTPUBLIC SPACES MASTER

PLAN (PSMP)


Draft PSMP - Land Acquisition Policy (page 139)

Generational or Unique Opportunities: Defined as an acquisition opportunity that, if not acquired at the point of availability, would likely become redeveloped to the point it would never become an opportunity again.

Note: The County’s typical method for acquiring land for creating or expanding parks is to make offers to purchase said properties when they are put on the market for sale.

Missionhurst


Draft PSMP - 2016 Statistically Valid Survey

Sample Size• Goal for number of surveys to be completed: 800

• Survey response exceeded the goal: 1,470 surveys completed

• Demographics of survey respondents accurately reflect the actual population of the County

Survey Results Generated Top 3 Outdoor Facility Needs:1. Paved Multi-Use Trails

2. Natural Areas & Wildlife Habitats (Casual Use Spaces)

3. Hiking Trails


Draft PSMP - Casual Use Spaces (page 60)

Priority Action 1.3.

Ensure access to spaces that are intentionally designed to support casual, impromptu use and connection with nature.

No LOS available but may be developed in the future.

COUNTY REQUIREMENTS

Area: Varies

Parking: None listed in the Arlington County Zoning Ordinance


Draft PSMP - Casual Use Spaces (page 60)


Draft PSMP – Additional Feedback

Feedback received from the public review process on desired County-wide amenities:

• Pickleball

• Hiking Trails

• Mountain Biking

• Natural Wooded Areas


Draft PSMP - Level of Service (LOS) (page 169)

• No national uniform level of service standards exist for parks or recreational amenities across the country.

• However, there are generally 2 types of standards communities use to analyze service: population-based standards and access standards.

• Both will be updated every 5 years for Arlington County.

Mapped LOS

Indicates, based on geography, where Arlington may need additional/feweramenities or improved accessto those amenities.

Population Based

Indicates the quantity of each amenity Arlington

needs between now and 2035 (verifies whether the

County has a surplus or deficit of any particular

amenity.


Draft PSMP - Arlington Outer Loop (page 83)

• Outer Loop extends access to the north

• Approximately 19-mile loop

• Combination of protected & enhanced routes

• Connects the major trail networks

Note: The County is still receiving feedback on the outer loop and the route may be altered to take advantage of existing transit infrastructure and avoid sensitive environmental areas.

Donaldson Run Trail

26/Old Dominion Site

NORTH


County Requirements – Amenities with Limited Access*

COMMUNITY GARDENSArea: Existing gardens range from approximately 4,300 to 69,000 square feet. Current standard for individual plots are approximately 10 feet by 20 feet.


DOG PARKSArea: At least 10,000 square feet for dog parks; Dog Runs are at least 2,000 SF.


PICNIC AREASArea: Varies based on the space available and site context


PLAYGROUNDSArea: Playground at Oak Grove Park is approximately 4,000 square feet. Playground at Chestnut Hills Park (Harrison) is approximately 18,000 SF.


BASKETBALL COURTSArea: 100 feet by 60 feet; 6,000 SF.

Parking: 20 parking spaces per court

RECTANGULAR FIELDSArea: Field dimensions vary depending on intended users and function. There are fields sized for youth and/or adult games. Also, there are practice fields that are smaller than regulation sized game fields.

Parking: Based on spectator seating; 1 parking spot/3 seats

TENNIS COURTSArea: 120 feet by 60 feet; 7,200 SF

Parking: 3 spaces per court

VOLLEYBALL COURTSArea: 80 feet by 50 feet; 4,000 SF

Parking: 14 parking spaces per court

PICKLEBALLArea: 44 feet by 20 feet; 880 SF

Parking: 3 spaces per court

* As identified for this area in the Draft Public Spaces Master Plan


QUESTIONS

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