Arroyo de la Laguna Bridge Project


SCH Number
Lead Agency
Caltrans 4 (Oakland) (California Department of Transportation, District 4)
Document Title
Arroyo de la Laguna Bridge Project
Document Type
NOP - Notice of Preperation

Document Description
Caltrans proposes to replace the existing bridge over Arroyo de la Laguna with a new bridge structure. Recent structure maintenance inspections (completed in Oct of 2013) identified that drift at Piers 4 and 5 of the Arroyo de la Laguna Bridge is causing scour, which will potentially undermine the footing at Pier 5 of this bridge site. Furthermore, the existing 1939 railing of the Arroyo de la Laguna Bridge does not meet current safety standards and needs to be updated to meet current standards. Modern bridge railing is better able to redirect errant vehicles back into the existing roadway. The purpose of the project is to mitigate bridge scour, protect the bridge's structural integrity and improve safety by directing potentially errant vehicles back into the roadway.

Contact Information
Brian Gassner
California Department of Transportation, District 4
111 Grand Avenue, MS 8B
Oakland, CA 94612

Phone : (510) 286-6025


Cross Streets
Niles Canyon Rd
State Highways
SR 84
Niles Canyon RR
Sunol Glen ES
Arroyo de la Laguna
Other Location Info

Notice of Completion

Review Period Start
Review Period End
Development Type
Transportation:Other (bridge replacement)
Project Issues
Aesthetic/Visual Archaeologic-Historic Biological Resources Flood Plain/Flooding Geologic/Seismic Public Services Soil Erosion/Compaction/Grading Toxic/Hazardous Traffic/Circulation Vegetation Water Quality Wetland/Riparian Land Use Cumulative Effects
Reviewing Agencies
Air Resources Board, Transportation Projects California Department of Parks and Recreation California Highway Patrol California Public Utilities Commission Department of Fish and Wildlife, Region 3 Department of Toxic Substances Control Department of Water Resources Office of Historic Preservation Regional Water Quality Control Board, Region 2 Resources Agency State Lands Commission Native American Heritage Commission
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