US-101 Ramp Metering Equipment Repair and Replacement DDO (EA 04-4X910)

Caltrans District 4 is proposing to repair, replace, and reactivate ramp metering equipment along US-101 in Sonoma County between post mile 2.69 and 4.88 to restore efficient traffic flow in preparation for the completion of the Marin-Sonoma Narrows Phase 7B HOV lanes project and related traffic analysis studies. The effort will focus on five locations where outdated or missing infrastructure—including loop detectors, flashing beacons, advanced warning signals, signage, ramp metering foundations, and pavement striping—will be installed or restored to ensure the freeway system operates near capacity. Traffic control measures will be implemented during construction to maintain safety and minimize disruption. The project is located within the City of Petaluma and is being executed under Caltrans standard practices with environmental compliance certified under the California Environmental Quality Act through a categorical exemption for existing facilities. The procurement is published as a forecast with no solicitation number or estimated contract value, indicating a pre-solicitation stage. The lead agency contact is Juliane Smith, Senior Environmental Scientist, with the project administration centered at Caltrans District 4 headquarters in Oakland. While environmental documentation and scope are detailed, no specific contract clauses, pricing, evaluation factors, delivery schedules, packaging requirements, or formal acceptance protocols are included in the available materials, suggesting that these elements will be defined in subsequent solicitation documents. The work is critical to integrating new HOV infrastructure and maintaining regional traffic efficiency, but formal contracting details remain incomplete at this forecast stage.