I-80/Hiddenbrooke Parkway Interchange Project

2 Documents in Project


SCH Number
Lead Agency
City of Vallejo
Document Title
I-80/Hiddenbrooke Parkway Interchange Project
Document Type
MND - Mitigated Negative Declaration
Present Land Use
Unincorporated, Agriculture (Napa County), Exclusive Agricultural (Solano County)
Document Description
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.

Contact Information

David Yatabe
Agency Name
City of Vallejo
Contact Types
Lead/Public Agency


Citywide, Countywide, Northern California, Unincorporated
Cross Streets
Interstate 80 and Hiddenbrooke Parkway
Total Acres
State Highways
Elder Creek, North Rindler Creek

Notice of Completion

State Review Period Start
State Review Period End
State Reviewing Agencies
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
Development Types
Transportation:Other (Intersection/Interchange Improvements)
Local Actions
Project Issues
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


Notice of Completion [NOC] Transmittal form

Disclaimer: The Governor’s Office of Planning and Research (OPR) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613. For more information, please visit OPR’s Accessibility Site.

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