I-80/Hiddenbrooke Parkway Interchange Project

I-80/Hiddenbrooke Parkway Interchange Project

The City of Vallejo is proposing operational improvements at the I-80/Hiddenbrooke Parkway interchange to address existing and future vehicle queues on Hiddenbrooke Parkway. The project will convert the existing stop sign-controlled intersections of the I-80 ramps with American Canyon Road and Hiddenbrooke Parkway, and the intersection of Hiddenbrooke Parkway and McGary Road, into roundabouts. Conversion of these intersections to roundabouts will not require modification of the existing American Canyon Road overcrossing of I-80. The project will require modification of the on and off-ramps where they intersect with local roads but would not involve changes to the ramp connections with I-80 or the existing mainline of the freeway. All proposed improvements would occur within existing State and local public rights of way. No displacement of an existing business or homes, nor the acquisition of private property would be required. In addition, no nonstandard design features are necessary to implement the project.

Citywide, Countywide, Northern California, Unincorporated

California Air Resources Board (ARB), California Department of Conservation (DOC), California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW), California Department of Forestry and Fire Protection (CAL FIRE), California Department of Parks and Recreation, California Department of Transportation, District 4 (DOT), California Department of Water Resources (DWR), California Highway Patrol (CHP), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Regional Water Quality Control Board, San Francisco Bay Region 2 (RWQCB), Office of Historic Preservation, State Water Resources Control Board, Division of Drinking Water

Transportation:Other (Intersection/Interchange Improvements)

Interchange

Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Cultural Resources, Cumulative Effects, Drainage/Absorption, Energy, Flood Plain/Flooding, Geology/Soils, Greenhouse Gas Emissions, Growth Inducement, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Mandatory Findings of Significance, Mineral Resources, Noise, Population/Housing, Public Services, Recreation, Schools/Universities, Septic System, Sewer Capacity, Solid Waste, Transportation, Tribal Cultural Resources, Utilities/Service Systems, Vegetation, Wetland/Riparian, Wildfire