Primary Road Improvements
10 Documents in Project
Summary
SCH Number
2003042080
Lead Agency
California Department of Parks and Recreation
Document Title
Primary Road Improvements
Document Type
NEG - Negative Declaration
Received
Present Land Use
Cultural Preserve - Mt. Diablo State Park General Plan; Forest Recreation District (F-R); Park and Recreation designation - Contra Costa General Plan (July 1996)
Document Description
This project would make high priority improvements to the primary road system that serves Mt. Diablo State Park. The work will improve the safety of the road conditions for both motor vehicles and bicyclists and would prevent further erosion and degradation of the existing road system. The following is a summary of the improvements proposed on South Gate, North Gate, and Summit Roads:
-Install new or repair/replace failing existing drainage collection points; repair, modify, or replace existing road culverts or install new culverts where needed; install rock slope protection on the cut side of the roadway to limit erosion; repair existing retaining walls; restore existing road embankment in areas of severe subsidence.
-Reconstruct or stabilize approximately 500 linear feet of road base structural sections with reinforcing geotextile fabric; install a subdrainage system to divert water away from the road section prism on North and South Gate Roads. Replace existing road surface on Summit Road.
Contact Information
Name
Shaelyn Raab Strattan
Agency Name
Department of Parks and Recreation
Contact Types
Lead/Public Agency
Phone
Location
Cities
Clayton
Counties
Contra Costa
Cross Streets
South Gate Road / Mt. Diablo Scenic Drive; North Gate Road; Summit Road
State Highways
101
Waterways
Sycamore Creek
Notice of Completion
State Review Period Start
State Review Period End
State Reviewing Agencies
Cal Fire, California Department of Conservation (DOC), California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW), California Highway Patrol, California Native American Heritage Commission (NAHC), California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB), California State Lands Commission (SLC), Department of Food and Agriculture (CDFA), Department of Toxic Substances Control, Department of Water Resources, Office of Emergency Services, California, Resources Agency, California Department of Transportation, District 4 (DOT)
State Reviewing Agency Comments
California Department of Transportation, District 4 (DOT)
Development Types
Recreational , Transportation:Local Road
Local Actions
Individual Project
Project Issues
Cultural Resources, Drainage/Absorption, Geology/Soils, Recreation, Transportation, Vegetation, Wildlife
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.