Wohler Road Bridge over Mark West Creek Bridge Replacement

3 Documents in Project


SCH Number
Lead Agency
Sonoma County
Document Title
Wohler Road Bridge over Mark West Creek Bridge Replacement
Document Type
MND - Mitigated Negative Declaration
Present Land Use
Existing road and bridge within County right of way, adjacent properties zoned LIA (Land Intensive Agriculture), currently planted with grapevines.

Document Description
The proposed project would replace the Wohler Road Bridge over Mark West Creek in lieu of a seismic retrofit. Replacement was determined to be the best alternative because the existing roadway has a sharp curve at the north end of the bridge which limits sight distance. The project would move the crossing east (upstream) about 100 feet from the north end and 60 feet upstream from the south end of the existing bridge to cross the creek at an angle and allow for safe sight distance on the new bridge. The new bridge would consist of a 3-span concrete slab supported by two solid wall concrete piers that are centered in the main portion of the creek channel. A small amount of new approach roadway would be constructed to join the new bridge with the existing roadway. The existing bridge would remain open until the replacement bridge is completed, at which time the old bridge would be removed. New right of way will need to be acquired from adjacent parcels.

Contact Information
Crystal Acker
Sonoma County
2550 Ventura Avenue
Santa Rosa, CA 95403

Phone : (707) 565-8357


Cross Streets
Wohler Road, north of River Road
Parcel #
ROW; 083-010-063, 083-020-003
State Highways
El Molino HS
Mark West Creek, Russian River
Other Location Info
City/ Nearest Community: Forestville

Notice of Completion

Review Period Start
Review Period End
Development Type
Transportation:Other (Seismic Bridge Replacement)
Local Action
Other Action Other Action: Seismic Bridge Replacement
Project Issues
Aesthetic/Visual Agricultural Land Air Quality Archaeologic-Historic Biological Resources Drainage/Absorption Flood Plain/Flooding Geologic/Seismic Noise Soil Erosion/Compaction/Grading Toxic/Hazardous Traffic/Circulation Vegetation Water Quality Wetland/Riparian Land Use
Reviewing Agencies
California Department of Fish and Wildlife, Bay Delta Region 3 California Department of Parks and Recreation California Department of Transportation, District 4 California Highway Patrol California Native American Heritage Commission California Regional Water Quality Control Board, San Francisco Bay Region 2 Department of Toxic Substances Control Department of Water Resources Resources Agency

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, 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.

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