Alamo Pintado Bridge Replacement

The Alamo Pintado Bridge Replacement project, located on State Route 246 in Santa Barbara County between post miles 30.173 and 30.435 near Solvang, California, involves the complete replacement of a scour-critical bridge with comprehensive upgrades to adjacent infrastructure. The scope includes installing straight abutment walls and applying rock slope protection to safeguard the bridge abutments, road embankment, and nearby infrastructure from erosion and environmental degradation. Four existing ADA-compliant curb ramps at the Alamo Pintado Road intersection will be upgraded to meet current accessibility standards. A new 14-foot-wide Class 1 Bikeway with a 2-foot-wide barrier separating it from the vehicle travelway will be constructed, connected to the existing path via a retaining wall on the northeast side of the bridge to ensure continuous, safe non-motorized travel. Work is subject to strict environmental controls under Caltrans Standard Specifications and state environmental guidelines, requiring seasonal work restrictions to avoid disrupting the breeding period of the California red-legged frog, implementation of wildlife detection protocols, and mandatory relocation of sensitive species by qualified biologists. Dust, noise, and emissions must be mitigated using water-only abatement methods, limiting equipment idling to five minutes, scheduling truck deliveries outside peak commute hours, and using alternative fuels to reduce greenhouse gas impacts. All hazardous materials, including drilling mud and fluids, must be contained to prevent contamination of waterways, and work must cease within 24 hours after rain events exceeding 0.1 inch. Contract performance is governed by Caltrans District 5 and overseen under a 305-working-day schedule with final acceptance occurring at the project site. Inspection and compliance are enforced by Caltrans, using standards from the 2023–2024 Caltrans Specifications, including controls for noise levels (86 dBA at 50 feet during nighttime), air pollution, hazardous waste handling, stormwater management, and pavement markings using lead-compliant thermoplastic. Environmental mitigation measures labeled BIO-1 through BIO-56 are binding contractual requirements, mandating daily equipment inspections for wildlife, prohibition of concrete pouring during potential rain, and mandatory reporting of special-status species discoveries. All subcontractors and workers must complete Environmental Awareness Training prior to mobilization. While no formal federal acquisition regulation clauses, contract type, pricing, or evaluation factors are specified in the provided documentation, the project is administered through Caltrans District 5 with Dianna Beck serving as the primary point of