SLO 166 CAPM
Summary
SCH Number
2026030127
Lead Agency
California Department of Transportation, District 5
(DOT)
Document Title
SLO 166 CAPM
Document Type
MND - Mitigated Negative Declaration
Received
Present Land Use
State Right-of-Way, Agriculture
Document Description
The California Department of Transportation (Caltrans) proposes to preserve approximately 14.2 lane miles of asphalt pavement through an overlay, restore two culverts in poor or critical condition, and upgrade guardrails to current Manual of Assessing Safety Hardware standards. The proposed project is located on State Route 166 in San Luis Obispo County from postmile 8.9 to 16.0. The project limits begin at the junction of U.S. Route 101 / State Route 166 to 0.45 miles west of the Huasna River Bridge.
Contact Information
Name
Lucas Marsalek
Agency Name
Caltrans District 5
Job Title
Senior Environmental Scientist
Contact Types
Lead/Public Agency / Project Applicant
Phone
Location
Coordinates
Cities
Nipomo, Santa Maria
Counties
San Luis Obispo, Santa Barbara
Regions
Countywide, Unincorporated
Cross Streets
US 101 / SR 166
Zip
93444
Total Acres
21
Parcel #
See "Other Location Info"
State Highways
S.R. 135, S.R.166
Railways
N/A
Airports
N/A
Schools
Tommie Kunst Junior High, Taylor Elementary School
Waterways
Twitchell Reservoir, Santa Maria River, Suey Creek, Nipomo Creek
Township
11 N
Range
33 W
Section
N/A
Base
SBPM
Other Location Info
090-401-026, 090-401-037, 090-261-017-090-401-038, 090-413-016, 090-412-014, 090-413-015, 090-413-014, 090-423-002, 090-413-013, 090-401-035, 090-423-009, 090-261-015, 090-261-014, 090-401-023, 090-401-036, 090-412-013, 090-401-025, 090-413-012, 090-412-007
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, Central Region 4 (CDFW), California Department of Forestry and Fire Protection (CAL FIRE), California Department of Parks and Recreation, California Department of Toxic Substances Control (DTSC), California Department of Transportation, District 5 (DOT), California Department of Transportation, Division of Transportation Planning (DOT), California Department of Water Resources (DWR), California Fish and Game Commission (CDFGC), California Governor's Office of Emergency Services (OES), California Highway Patrol (CHP), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Public Utilities Commission (CPUC), California Regional Water Quality Control Board, Central Coast Region 3 (RWQCB), California Transportation Commission (CATC), Office of Historic Preservation, State Water Resources Control Board, Division of Drinking Water
Development Types
Other (Transportation: Highway/Freeway)
Local Actions
Transportation Project
Project Issues
Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Cumulative Effects, Geology/Soils, Hazards & Hazardous Materials, Mandatory Findings of Significance, Noise, Public Services, Transportation, Vegetation, Wetland/Riparian, Wildfire
Public Review Period Start
Public Review Period End
Attachments
Draft Environmental Document [Draft IS, NOI_NOA_Public notices, OPR Summary Form, Appx,]
Notice of Completion [NOC] Transmittal form
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