Mt. Murphy Road Bridge Project

3 Documents in Project


SCH Number
Lead Agency
El Dorado County
Document Title
Mt. Murphy Road Bridge Project
Document Type
EIR - Draft EIR
Document Description
The Project would construct a post tensioned cast-in-place (ClP) concrete box girder bridge built in two stages. The ClP concrete box girder bridge design provides a low maintenance structure that requires a minimal level of repair during its service life (i.e. biennial inspections, occasional joint replacement, and deck rehabilitation as needed). The total replacement bridge length is approximately 445 ft and is anticipated to be composed of two 130 ft end spans and one 185 ft main span. The proposed new bridge and lane configuration will provide two 11-foot lanes, two 2-foot shoulders, an 8-foot sidewalk, and Caltrans Type 85 barriers. The proposed sidewalk would be on the upstream side of the bridge and tie into Mt. Murphy Road on either side of the new bridge. A cable-stay system or portals would be installed at the piers. The structure width necessary to accommodate the roadway, sidewalk, and barriers is approximately 38 feet.

Contact Information

Jon Balzer
Agency Name
County of El Dorado
Job Title
Senior Civil Engineer
Contact Types
Lead/Public Agency

Jeff Little
Agency Name
Job Title
Contact Types
Consulting Firm


El Dorado
Northern California
Cross Streets
Mt. Murphy Road at SR 49
Total Acres
Parcel #
State Highways
SR 49
Gold Trail Middle School
South Fork of American River
Other Location Info
Coloma, Marshall Gold Discovery State Historic Park

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, North Central Region 2 (CDFW), California Department of Forestry and Fire Protection (CAL FIRE), California Department of Parks and Recreation, California Department of State Parks, Division of Boating and Waterways, California Department of Transportation, District 3 (DOT), California Department of Water Resources (DWR), California Highway Patrol (CHP), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California State Lands Commission (SLC), California Transportation Commission (CATC), Central Valley Flood Protection Board, Delta Protection Commission, Delta Stewardship Council, Department of Toxic Substances Control, Office of Historic Preservation, Sierra Nevada Conservancy, State Water Resources Control Board, Division of Water Quality, California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB)
State Reviewing Agency Comments
California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB)
Development Types
Transportation:Local Road (Mt Murphy Road)
Local Actions
Site Plan
Project Issues
Aesthetics, Biological Resources, Cultural Resources, Cumulative Effects, Mandatory Findings of Significance, Noise, Recreation, Transportation, Tribal Cultural Resources, Wetland/Riparian
Local Review Period Start
Local Review Period End


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 or via phone at (916) 445-0613. For more information, please visit OPR’s Accessibility Site.

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