Hopper Slough Bridge Replacement Project

4 Documents in Project


SCH Number
Lead Agency
California Department of Transportation, District 4 (DOT)
Document Title
Hopper Slough Bridge Replacement Project
Document Type
NOP - Notice of Preparation of a Draft EIR
Present Land Use
Document Description
Caltrans is the lead agency under the CEQA and NEPA, as assigned by the Federal Highway Administration (FHWA), for the State Route 128 Hopper Slough Bridge Replacement Project. Caltrans proposes to replace the existing Hopper Slough Bridge (Bridge No. 21-0019) located in Rutherford, an unincorporated census-designated place, in Napa County, on SR 128 post mile 5.12. Caltrans, as the owner/operator of the State Highway System and the lead agency under CEQA and NEPA, has initiated a public review period and is conducting a virtual scoping meeting to request comments on the scope and content of a planned EIR and EA for the Napa 128 Hopper Slough Bridge Replacement Project. The project limits include space for equipment storage, access to the slough and space for equipment to demolish and construct the new structure. The goals of the project include the following: • Address structural deficiencies • Ensure continued use of the highway and the bridge for all of its users.

Contact Information

Nathan Roberts
Agency Name
California Department of Transportation (Caltrans) District 4
Contact Types
Lead/Public Agency


Calistoga, Napa, St. Helena
Citywide, Countywide, Unincorporated
State Highways
128, 29
Napa Valley Vine Trail
Napa River, Hopper Slough, Bale Slough

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 Forestry and Fire Protection (CAL FIRE), California Department of Parks and Recreation, California Department of Water Resources (DWR), California Highway Patrol (CHP), California Natural Resources Agency, California Public Utilities Commission (CPUC), California Regional Water Quality Control Board, San Francisco Bay Region 2 (RWQCB), California State Lands Commission (SLC), California Transportation Commission (CATC), Department of Toxic Substances Control, Office of Historic Preservation, State Water Resources Control Board, Division of Drinking Water, State Water Resources Control Board, Division of Water Quality, California Native American Heritage Commission (NAHC), California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW)
State Reviewing Agency Comments
California Native American Heritage Commission (NAHC), California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW)
Development Types
Transportation:Highway/Freeway (Bridge Replacement)
Local Actions
Transportation Bridge Replacement
Project Issues
Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Cultural Resources, Cumulative Effects, Flood Plain/Flooding, Geology/Soils, Greenhouse Gas Emissions, Hazards & Hazardous Materials, Hydrology/Water Quality, Mandatory Findings of Significance, Noise, Transportation, Tribal Cultural Resources, Vegetation, Wetland/Riparian, Wildfire


Draft Environmental Document [Draft IS, NOI_NOA_Public notices, OPR Summary Form, Appx,]
Notice of Completion [NOC] Transmittal form
State Comment Letters [Comments from state reviewing agencies]

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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