copano bay lbj causeway demolition · sh35 - lbj causeway confluence of copano bay and aransas bay...
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Footer Text September 2016
COPANO BAYLBJ CAUSEWAY DEMOLITIONIntegrated ACM Abatement
September 2016
Footer Text September 2016
Integrated ACM Abatement
Integrating ACM Abatement into Bridge Demolition
PS&E and Long-Duration Demolition
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Project Background
SH35 - LBJ Causeway
Confluence of Copano Bay and Aransas
Bay
Fulton, Aransas County
Constructed in 1967
Length: 9,232 ft
Two 13-ft Lanes; 2-ft Shoulders
Old Clearance: 50 ft
Undersized for Current Traffic Flow
Traffic Cannot Pass if Accident or
Breakdown
Structurally Deficient
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Project Background (Cont.)
Need for Project
– Improve Safety
– Improve Mobility
Demolition and Replacement
Length: 11,010 ft
Four 12-ft Lanes; Two 4-ft Inside Shoulders;
Two 10-ft Outside Shoulders (bicyclists &
pedestrians)
New Clearance: 75 ft
Allow Traffic to Pass if Accident or
Breakdown
Improve Hurricane Evacuation Route
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Hazmat ISA and ACM/LCP Inspections
2009 - NEPA Hazmat ISA
Competed
– No Hazmat Sites within ROW
– Bridge Demolition Planned
Feb 2010 - ACM/LCP Inspection
Nov 2010 - Categorical Exclusion
2011 - PS&E Prepared
2011 - Project Let/Construction
of New Bridge
2014 - ACM/LCP Re-inspection
2014 - Change Order
May 2015 - Demo/ACM
Abatement
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ACM on Bridge
ACM: Bearing Pad, Railing Stanchion Gasket, & Sealant in Pier Core Hole
ACM = >1% asbestos; Regulated ACM = 260 LF pipe, 160 SF coatings, or 35
CF where length or area not previously measured
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Federal Project Authorization Agreement (FPAA)
Federally Funded Projects may be Eligible for
Federal Reimbursement of Abatement
Request Federal Funds at Beginning of
Hazmat Projects
Submit FPAA Request to Avoid Potential
Funding Problem (New or Amended Projects)
TxDOT FIN Online Request for FPAA approval:
http://iapps/apps/f225/
Electronically Submit FHWA Request
FHWA Processes Request in 3 - 7 days
Daniel Dargevics
TxDOT Federal Team, Letting Management
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CE Commitments
Notification, Abatement and Disposal per Federal and State Regulations
Federal Regulations
– 40 CFR 61.145 (Renovation and Demolition of Structures – Asbestos
NESHAP)
– OSHA 29 CFR 1926.1101 (Asbestos Standard for Construction)
State Regulations
– 12 TOC 1954 (Texas Asbestos Health Protection Act)
– 25 TAC 295, Subchapter C (Texas Asbestos Health Protection Rules;
TAHPR)
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PS&E – General Notes
General Notes
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PS&E – General Notes
General Notes
ITEM 496
– Hazardous Materials on Bridge
– Notify TDSHS (Individual Notification for each Bridge)
– Demolition by Blasting Prohibited
– Disassemble, Deliver, and Neatly Stack Elements
• Contractor to Move Elements
– Secure Temporary Storage of ACM Elements
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PS&E – General Notes
General Notes (contd.)
ITEM 496 (contd.)
– ACM Removal and Disposal by TxDOT
– ACM Removal Concurrent with Disassembly
– ACM Removal Incremental and Batch
• Railing Stanchion Gaskets (496 SF)
• Bent Bearing Pads (17,742 SF)
• Pier Core Hole Sealant (12 SF)
– ACM Marine Recovery Added to Scope
• Favored Incremental Removal (Batch Not Implemented)
• Lower Daily Labor (Manpower), but Longer Schedule
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PS&E – Demolition Plan
ACM: Bearing Pad, Railing Stanchion Gasket, & Sealant in Pier Core Hole
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Revised based on updated ACM inspection report, resulting in scope change.
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PS&E – EPIC Sheet
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TDSHS Notification
TDSHS – 10-day Notification per NESHAP
and/or TAHPR
– Required for Demolition of a Bridge
Regardless of ACM Presence
– Combined or Separate Demolition and
Abatement Notifications
– Phased Demolition/Abatement:
• 3 Months Expanded to 12 Months
• 5 Abatement Notice Amendments
• 3 Demolition Notice Amendments
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Traffic Control
Traffic Control Area Managed by Bridge
Construction/Demolition Contractor
Traffic Control may be Managed by ENV Contractor,
District Contractor, or Demolition Contractor
Project Conditions will Dictate the Most Cost-effective
Approach
District may Prefer ENV Contractor to Manage Traffic
Control for Abatement-only Projects
Requires Careful Coordination and Scheduling
Complex Traffic Control Plans to be Sealed by an Engineer
Require Use of Engineering Contract
ENV may Require Assistance Evaluating Adequacy of Plan
Careful Management of Liability Issues for TxDOT and ENV
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Remove ACM Railing Gaskets
Remove Guard Railings and Expose ACM Gaskets Beneath Stanchions
Remove ACM Gaskets from Concrete Rail Footing
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Expose ACM Felt Bearing Pads
Remove Concrete Road Deck and Expose ACM Felt Bearing Pads
Marine Recovery of Felt Bearing Pad Pieces
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Remove Residual ACM Felt Bearing Pad from Deck
Transport Deck to Abatement Area
Remove Residual ACM Felt Bearing Pad from Deck
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Remove Felt Bearing Pads from Caps
Remove Concrete Pier Caps and Transport to Abatement Area
Remove Residual ACM Felt Bearing Pad from Caps
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Remove ACM Sealant from Piers
Remove Concrete Piers and Transport to Abatement Area
Remove ACM Sealant from Core Holes in Piers
Manifesting/Offsite Disposal of ACM Waste (Tessman Road Landfill, San Antonio)
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Reuse and Disposal of Abated Concrete Elements
Bury Concrete Elements to Counter Subsidence and Prevent Erosion
Build Breakwater with Concrete Elements
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Contracting Options
Guidance for Handling Asbestos in Construction
Projects (Jan. 26, 2007)
Multiple Contracting Options:
1. ENV Remediation/Abatement Contract
2. District-wide Contract
3. Develop Abatement Specifications to be
included in PS&E for let Construction or
Maintenance project
4. Develop Abatement Specifications to be
included in PS&E for Prime Contractor
5. Purchase of Service Contract (<$15,000)
6. Emergency Contract
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Contracting
ENV PO Contract
Tetra Tech NUS, Inc. (contractor)
1 Priority Environmental Services (subcontractor)
4 PO Releases – Demo 4X Longer and Added Marine Recovery of ACM
Abatement Cost: $1.56MM ($436K + $232K + $434K + $453K)
Managing Abatement Contractor
– Daily Reports
– On-Site TxDOT Superintendent
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Integration of ACM Abatement into Demolition
Incorporated into PS&E, and Demolition Process
No Impact to Expanded Demolition Schedule
– Planned for 3 months
– Expanded to 12 months
Conducted Wherever and Whenever Convenient
– Lay Down Area, Truck Bed, Construction Yard, or Disposal Area
Marine Recovery of ACM
Use Abated Concrete Elements as Landfill Material and Breakwater
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