CA FTFW/FLAP DOED 10(3), La Riviere Bridge & Marshland

Added: Apr 10, 2017 12:28 pm

THIS IS NOT A REQUEST FOR BID - PLANS AND SPECIFICATIONS ARE NOT AVAILABLE. THE TENATIVE ADVERTISEMENT DATE IS ON OR ABOUT 8 DECEMBER, 2016. THIS PROJECT WILL BE ADVERTISED ON AN UNRESTRICTED (FULL AND OPEN) COMPETITION.

PROJECT DETAILS: CA FTFW/FLAP DOED 10(3), La Riviere Marsh Bridge and Marshlands Road

This project is for improvements to Marshlands Road in the Don Edwards San Francisco Bay National Wildlife Refuge in Alameda County, California. The project begins at the intersection with Thornton Avenue and extends 0.6 km (0.37 miles) southwest towards the Refuge Headquarters. The major components of work are the relocation of water and sewer lines connected to the existing bridge, the demolition and construction of a bridge over the La Riviere Marsh and 600 meters of pavement rehabilitation. The new bridge will be a 3 span concrete surface with precast concrete piles and girders and cast in place deck and barrier. A temporary bypass lane will be construction adjacent to the bridge to allow for complete removal and reconstruction in a short time frame.

The proposed improvements to the roadway are to:
• Construct a traffic diversion on the north side of the existing bridge;
• Demolish the existing bridge;
• Construct a new 2-lane bridge with shoulders and a sidewalk;
• Pulverize the existing asphalt;
• Pave asphalt;
• Install pavement markings, and signage;

Major work items include approximately:
• Removal of the existing structure
• 411 meters of precast, prestressed concrete piles
• 320 cubic meters of cast-in-place structural concrete
• 48,000 kilograms of epoxy coated reinforced steel
• 15 precast, prestressed concrete girders
• 4,000 square meters of pulverization
• 1,200 metric tons of asphalt concrete pavement
• Installation of sanitary sewer and potable water lines (both temporary and permanent facilities)

SCHEDULE:
Advertisement for bidding on project is anticipated to be May 1, 2017. At that time construction plans and specifications will be made available. Award of contract is anticipated at the end of May 2017. Notice to proceed for work plans, mix designs, shop drawing submittals and prefabrication elements is anticipated in June 2017. Notice to proceed for ground disturbance is anticipated September 1st, 2017 with construction to be completed by January 31st, 2018.

MISCELLANEOUS:
1. Provisions will be necessary to protect Federal or State listed endangered, threatened, or special concern species. Provisions will include limitations on when and where work can occur. The limitations include no ground disturbance prior to September 1st and all work must be completed by January 31st. Work plans, mix designs, shop drawings, and prefabricated elements may be completed prior to September 1st.
2. Marshlands Road is within Caltrans Right-of-Way. An encroachment permit from Caltrans will be necessary. A separate encroachment permit from the City of Newark will be necessary for impacts to Thornton Avenue.
3. Marshlands Road accesses and is surrounded by a National Wildlife Refuge. Close coordination with the U.S. Fish and Wildlife Service will be necessary.