US 101 Improvement Project

The US 101 Improvement Project is a transportation initiative led by the California Department of Transportation District 7 in coordination with the Ventura County Transportation Commission. The project proposes the addition of high-occupancy vehicle and express bus lanes in each direction along US Highway 101 from post mile 4.1 to 30.9 in Ventura County, California. This corridor spans the communities of Thousand Oaks, Camarillo, Oxnard, and Ventura, extending approximately from State Route 23 to State Route 33. The improvements aim to enhance the existing infrastructure, which currently consists primarily of three general-purpose lanes in each direction, by adding HOV/express bus lanes between Moorpark Road and State Route 33, along with auxiliary lanes where operationally beneficial. As a presolicitation effort, the project is currently in the environmental review phase. A Draft Environmental Impact Report, Environmental Assessment, and Draft Section 4(f) Evaluation have been released for public scrutiny. The public review period is scheduled from September 30, 2026, to December 7, 2026, and includes several in-person and virtual public hearings to gather community feedback on project alternatives and environmental findings. The process is being managed under CEQA guidelines to identify potential environmental impacts and establish necessary mitigation measures.