Construct bridge, Aux lanes, Geo Reinf Emb, rock Exc, Elect, landscape

Contract 11-146654 is a federally aided highway construction project managed by the California Department of Transportation in San Diego County, specifically near La Mesa. The project focuses on infrastructure improvements for State Route 94 and State Route 125, including the construction of auxiliary lanes, a bridge, and the replacement of the Mariposa Street Overcrossing. The scope of work encompasses georeinforced embankments, rock excavation, landscaping, and extensive electrical systems installation, such as lighting, camera poles, vehicle detection systems, and fiber optic markers. The estimated project cost is 64 million dollars, with bids submitted on a unit price basis. The project is governed by 2025 Standard Specifications and Plans, requiring strict adherence to Buy America and Build America standards for manufactured products. Key technical requirements include the use of special cast-in-drilled hole pile foundations for overhead signs to minimize hard rock excavation and a robust contractor-led quality control geotechnical testing program. Performance begins within 55 days of contract approval, with specific delivery and storage mandates for pipeline materials and reinforcing steel. Contractors must comply with prevailing wage rates and provide detailed bid documentation in escrow, including quantity takeoffs and rate schedules. Final acceptance involves rigorous functional and waterproofing testing for Changeable Message Signs and ADA compliance surveys for specified locations.