LOI # Pilot Program Design & Related Services for Development of Accelerated Bridge Construction Standards & Pilot Bridge Construction

Program Objective To implement Accelerated Bridge Construction (ABC) techniques in the repair/replacement of County Bridges and to standardize the design and construction of new bridges. To implement Accelerated Bridge Construction (ABC) techniques in the repair/replacement of County Bridges and to standardize the design and construction of new bridges.

Program Goals 1.Reduce on-site construction time. 2.Reduce traffic and environmental Impacts 3.Reduce life-cycle costs. 4.Improve worker and vehicle safety and 5.Enhance the quality of the constructed bridges.

Accelerated Bridge Construction is: To build the bridge first before you set cones, then quickly move it into place – like a weekend!

What is driving the change for Collier County  The infrastructure is aging  Goal: A minimum 75- yr service life  Currently: 1.Average bridge life is 42 years 2.Average bridge deck life is year  Standardization to achieve lower costs

Commitment to National Vision Commitment to National Vision Means: Innovative Technology Goals Durability Safety Efficiency and Quality

3-Phase ABC Project  Phase 1 – Develop ABC Standards  Phase 2 – Develop Pilot Project  Phase 3 – Construction of Pilot Project

“County-Scale” Solutions  Various solutions are deployed by counties to accelerate construction –Prefabricated arches (Bebo / ConSpan) –County-built flat slab segments –Short span double-T w/o topping –Inverted T beams –Pre-engineered trusses –Inverset steel beams –Various sawn or manufactured timber products –Slab bridges or deck panels

Pilot Project Golden Gate Main Canal 23 ST SW White Blvd.

Pilot Project  Complete roadway closure  Detour alternative  Connect 23 rd Ave. SW across the Golden Gate Main Canal

Pilot Project White Boulevard Bridge Replacement Major rural collector – built in Span prestressed concrete slab Functionally Obsolete Sufficiency Rating 44.2 Health Index ST SW Bridge Approved by GMP for new Bridge connection Provide better connection for Emergency services and Potential emergency evacuation route

Precast Decks on PS Beams

Precast Decks on Steel Framing

Precast Abutments

Precast Piers

Retaining Walls  Mechanically Stabilized Earth Walls  Precast Gravity Walls  Precast Cantilever

Total Bridge Prefabrication

Construction Considerations  Activities sequenced/scheduled appropriately to optimize time and accelerate construction  Contractor to be familiar with new technologies or materials being used  It may effect scheduling of activities  Adequate upfront time allowed  Shop drawings  Shop drawing approval  Fabrication  Full curing of all precast elements

Construction Considerations  Plan for space in the staging area for all required equipment  Provide space for demolition of the existing structural elements

Questions?