Tieback Retaining Wall

2 Documents in Project

Summary

SCH Number
2006052057
Lead Agency
Caltrans 1 (Eureka) (California Department of Transportation, District 1)
Document Title
Tieback Retaining Wall
Document Type
NEG - Negative Declaration
Received
Present Land Use
The project site is the SR-1 transportation facility located on the rural Mendocino coast. Adjacent lands are used for grazing and rural residential.

Document Description
Caltrans proposes to replace a failing log crib wall on the west side of SR-1 by constructing a new tieback retaining wall. The project is located approximately 3.2 km (2 miles) south of the intersection of SR-1 and SR-128, and 5.6 km (3.5 miles) north of the community of Elk. This section of SR-1 crosses a landslide complex that is approximately 200 m (656 ft.) wide at the roadway level. The southbound lane is showing signs of failure as a result of movement of the hillside, and the log crib wall supporting the roadway is deteriorating. The new tieback wall would meet geotechnical conditions, safety, operational and design standards. If the crib wall or hillside fails, the roadway would be closed for an extended period of time without any state highway detours available.

Contact Information
Gary Berrigan
Department of Transportation, District 1
1656 Union Street
Eureka, CA 95501

Phone : (707) 441-5730

Location

Counties
Mendocino
Cross Streets
2 miles south of SR-1 / SR-128 intersection
Total Acres
3
State Highways
SR-1
Waterways
Pacific Ocean and Navarro River
Township
15N
Range
17W
Section
9
Base
MD
Other Location Info
City/Nearest Community: Elk

Notice of Completion

Review Period Start
Review Period End
Development Type
Transportation:Other (Tieback Wall)
Project Issues
Aesthetic/Visual Air Quality Archaeologic-Historic Coastal Zone Geologic/Seismic Noise Public Services Toxic/Hazardous Traffic/Circulation Vegetation Water Quality Wildlife Cumulative Effects
Reviewing Agencies
Air Resources Board, Transportation Projects California Coastal Commission California Department of Parks and Recreation California Highway Patrol Department of Toxic Substances Control Department of Water Resources Native American Heritage Commission Office of Historic Preservation Regional Water Quality Control Board, Region 1 Resources Agency State Lands Commission Department of Fish and Wildlife, Region 3
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