Olema Tributary Creek Culvert Replacement Project

5 Documents in Project


SCH Number
Lead Agency
Caltrans 4 (Oakland) (California Department of Transportation, District 4)
Document Title
Olema Tributary Creek Culvert Replacement Project
Document Type
FIN - Final Document

Document Description
Caltrans proposes the Olema Creek Tributary Culvert Replacement Project to replace a failing double culvert on SR 1 in rural Marin County, CA, at PM 24.67, which is approximately 1.8 miles south of the town of Olema. The project involves removing two undersized 24-in diameter culverts that currently convey the flows from an unnamed tributary of Olema Creek, and constructing a 44 ft long, natural bottom culvert (cast in place, reinforced concrete box) that is approximately 30 ft wide on its interior and 36 ft wide on its exterior. The culvert would require soil nail wingwalls in each quadrant extending perpendicularly from the culvert opening until it meets the 2:1 embankment slope where the wingwalls would meet the existing ground.

Contact Information
Eric DeNardo
California Department of Transportation, District 4
111 Grand Avenue
Oakland, CA 94623-0060

(510) 286-5645


38°01'7.68"N 122°46'17.2"W
Cross Streets
SR 1, 3 mi south of Bear Valley Rd intersection
Total Acres
Parcel #
166-060-41, -070-22
State Highways
Olema Creek
Other Location Info

Notice of Completion

Development Type
Other (culvert replacement)
Project Issues
Wetland/Riparian Water Quality Vegetation Traffic/Circulation Toxic/Hazardous Recreation/Parks Noise Geologic/Seismic Drainage/Absorption Biological Resources Archaeologic-Historic Air Quality Agricultural Land
Download CSV New Search