Place HMA, replace signs, MBGR, TMS and drainage systems.

Solicitation 01-0J9904 is issued by the California Department of Transportation for road and bridge infrastructure improvements on Route 101 in Mendocino County, specifically between postmiles T91.3 and T106.8. The scope of work includes placing Hot Mix Asphalt, replacing signs, and installing or modifying drainage systems, steel post guardrails, TL-3 alternative in-line terminals, and concrete barrier transitions. Additionally, the project involves modifying Variable Message Sign systems and installing portable radar speed feedback signs, traffic counters, cellular routers, and networking hardware. The project is subject to strict environmental and timing constraints, with work in drainage channels permitted only from June 15 to October 15, and specific wildlife protection measures to protect breeding plovers, including the use of a Service-approved biologist. The contract requires adherence to Build America Buy America standards and specific material specifications, such as AWPA U1 for wood box posts and ASTM standards for concrete testing. Quality control is rigorous, requiring ACI Concrete Field-Testing Technician Grade 1 certification for personnel and source inspection for equipment enclosures. Electrical components must include a minimum one-year replacement warranty. Labor requirements are governed by the Davis-Bacon Act, including a minimum wage of $13.65 per hour and specific paid sick leave mandates. The solicitation was posted on October 26, 2026, with a response deadline of December 10, 2026, and project plans dated June 30, 2026.