Specifications include, but are not limited to: The bridge replacement project is located on Walker Creek Road, located 0.6 miles west of the intersection of Walker Creek Road and Highway 395, 1.6 miles south of Olancha, CA where Wlaker Creek Rd crosses the LA Aqueduct. The site is at approximately 7,200 ft elevation. The project consists of the construction of a new single span precast-prestressed voided slab bridge on short seat abutments and spread footings over the concrete lined Los Angeles Aqueduct and includes: placing construction Area Signs, implementing SWPPP, placing erosion control measures, installing temporary Desert Tortoise Fencing around the project limits, clearing and grubbing, removal of Los Angeles Department of Water and Power (LADWP) patrol road fencing, constructing new patrol road embankments at all four bridge corners, constructing road embankments for the realigned Walker Creek Road, paving, installing cattle guard, installing CA Type ST-75 concrete curb and steel bridge rail with 7-foot tall chain link fencing, obliterating the existing alignment of Walker Creek Road, and hydroseeding. Vehicular traffic will use the existing Walker Creek bridge during construction. The existing bridge will remain in place after construction.