The seven-span, four-lane, precast prestressed voided slab bridge is 460 ft long with a typical span of 67.5 ft. The 4 ft precast voided slabs were erected using 100 ton crane. The adjacent decked beams were joined together with a key mortar joints. Cast-in-place concrete topping was used and as a result tie rods were not used on this project. The structure is supported on twelve-150 ton circular driven concrete pile extensions per bent.
Fourteen-foot wide raised median was installed on Thunder Valley Sunset Bridge as part of this project. The project includes the installation of a 16-inch water line on brackets at edge beam with inserts.
The design challenges included: The voided slabs were joint together with cast-in-place concrete closure pour with interlocking reinforcing bars and strands above the invert cap. Environmental and Hydraulic issues.
ADKO Engineeringâ€™s responsibilities: Provided plans, specifications, estimate and construction support including inspection, reviewed shop drawings, responded to RFIâ€™s and change orders, coordination with other agencies, and ensure the project was completed on-time and within budget.
Construction Cost: $4,700,000