Route 101 Auxiliary Lanes Project

Route 101 Auxiliary Lanes Project

Caltrans proposes to provide auxiliary lanes in both directions by widening Route 101 between the Embarcadero Road interchange in the City of Palo Alto, Santa Clara County, to the Marsh Road interchange in the City of Menlo Park, San Mateo County. In general, Route 101 would be widened on the outside to accommodate the addition of auxiliary lanes. The Henderson railroad overcrossing and the Ringwood Avenue pedestrian overcrossing would be reconstructed. The proposed project also includes extending the support foundation over the Hetch Hetchy aqueduct, widening of on-ramps to provide High Occupancy Vehicle lanes, installing and modifying existing ramp metering at on-ramps, and relocating the existing storm water lift station adjacent to the Henderson railroad overcrossing. Approximately 2,690' of retaining walls would be constructed along the depressed section of Route 101 north and south of the Henderson railroad overcrossing.

East Palo Alto, Menlo Park, Palo Alto

San Mateo, Santa Clara

California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW), California Department of Parks and Recreation, California Highway Patrol, California Native American Heritage Commission (NAHC), California Public Utilities Commission (CPUC), California Regional Water Quality Control Board, San Francisco Bay Region 2 (RWQCB), Department of Toxic Substances Control, Department of Water Resources, Office of Historic Preservation, Resources Agency

Transportation:Other (Auxiliary Lanes)

Aesthetics, Air Quality, Biological Resources, Cultural Resources, Flood Plain/Flooding, Geology/Soils, Hydrology/Water Quality, Land Use/Planning, Public Services, Recreation, Transportation, Wetland/Riparian