Halcyon Rd. / Highway 1 Realignment Project ED01-141 (WBS300132)


SCH Number
Lead Agency
San Luis Obispo County
Document Title
Halcyon Rd. / Highway 1 Realignment Project ED01-141 (WBS300132)
Document Type
NEG - Negative Declaration
Present Land Use
Local Road and State Highway intersection

Document Description
Proposal by the County of San Luis Obispo Department of Public Works to replace the two, existing off-set "T" intersections with a single, four-way intersection to accommodate increased traffic levels on Halcyon Road/Highway 1. Proposed improvements include the realignment of two segments of Halcyon Road north and south of Highway 1 and constructing a new bridge over Arroyo Grande Creek. The proposed project is expected to occur in eight general phases including: (1) construction of access road into channel for bridge foundation construction, (2) excavation and construction of bridge foundations within channel, (3) construction of embankments for new roadway, as new profile is above that of the existing farm fields, (4) construction of bridge spans (work within creek complete), and (5) removal of access road and restoration of old route and clean up of staging areas. The area of disturbance will total approximately 9.5 acres. The entire impacted area not restored for agricultural use will be seeded and mulched, planted and erosion control measures will be installed to prevent erosion. The site is located on Halcyon Road at the Highway 1 intersection, approximately 1/2 to 1 mile south of the City of Arroyo Grande, San Luis Obispo County, in the South County planning area.

Contact Information
John Farhar
San Luis Obispo County
Lead/Public Agency
County Government Center, Room 310
San Luis Obispo, CA 93408-2040

Phone : (805) 781-5252


Arroyo Grande
San Luis Obispo
Cross Streets
Halcyon Road / Hwy. 1
Total Acres
State Highways
Hwy. 1
Oceano County
Arroyo Grande HS, Cuesta College - Arroyo Grande Center, Harloe
Arroyo Grande Creek, Los Berros Creek
Other Information
Schools: School, Lopez HS, North Oceano School, Ocean View School.

Notice of Completion

Review Period Start
Review Period End
Development Type
Transportation:Other (Realignment/reconstruction)
Local Action
Public Works project
Project Issues
Agriculture and Forestry Resources Air Quality Cultural Resources Geology/Soils Hydrology/Water Quality Population/Housing Transportation Vegetation Wildlife
Reviewing Agencies
Air Resources Board, Transportation Projects California Department of Conservation (DOC) California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW) California Department of Health Care Services (DHCS) California Department of Parks and Recreation California Department of Transportation, District 5 (DOT) California Highway Patrol California Native American Heritage Commission (NAHC) California Regional Water Quality Control Board, Central Coast Region 3 (RWQCB) California State Lands Commission (SLC) Caltrans, Division of Aeronautics Department of Water Resources Office of Historic Preservation 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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