Lake 20 Shoulders Project

2 Documents in Project


SCH Number
Lead Agency
Caltrans 3 (Marysville) (California Department of Transportation, District 3)
Document Title
Lake 20 Shoulders Project
Document Type
MND - Mitigated Negative Declaration

Document Description
Caltrans proposes a safety project along SR 20 in Lake County near Upper Lake between PM 5.1 to PM 5.8. The project proposes to construct 8-ft shoulders in both directions, increase the existing curve radius, and add eastbound left turn and westbound right turn lanes for Witter Springs Rd. Increasing the curve radius and widening the roadway would require 1:1 or flatter cut slopes on the north side of the road and a 2:1 or flatter embankment on the south side of the road.

Contact Information
Adele Pommerenck
California Department of Transportation, District 3
703 B St
Marysville, CA 95901



39°9'56"N 122°57'51"W
Cross Streets
Witter Springs Rd
Parcel #
Caltrans ROW
State Highways
SR 20
Other Location Info
Upper Lake

Notice of Completion

Review Period Start
Review Period End
Development Type
Transportation:Other (shoulder widening)
Local Action
Other Action Other Action: Transportation
Project Issues
Wetland/Riparian Water Quality Traffic/Circulation Toxic/Hazardous Noise Geologic/Seismic Biological Resources Archaeologic-Historic Air Quality Aesthetic/Visual
Reviewing Agencies
Regional Water Quality Control Bd., Region 5 (Sacramento) Air Resources Board, Transportation Projects Cal Fire California Department of Parks and Recreation California Highway Patrol California Public Utilities Commission Central Valley Flood Protection Board Department of Fish and Wildlife, Region 2 Department of Toxic Substances Control Department of Water Resources Native American Heritage Commission Office of Historic Preservation Resources Agency State Lands Commission State Water Resources Control Board, Division of Drinking Water
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