SM-1 Slope Erosion Repair DO (EA 4X450)
Summary
SCH Number
2025100688
Public Agency
California Department of Transportation, District 4
(DOT)
Document Title
SM-1 Slope Erosion Repair DO (EA 4X450)
Document Type
NOE - Notice of Exemption
Received
Posted
10/15/2025
Document Description
Caltrans proposes to repair an eroded slope on Highway 1 at post mile R47.6 that was caused by a damaged down drain. The affected area is approximately 100 square feet. The erosion has extended beneath the pavement and poses a risk to the normal use of Highway 1. The work includes installing rock slope protection to stabilize the slope, repairing the damaged drainage system, resetting the guardrail affected by the erosion, and restoring the pavement in the eroded area. The slope will be restored using landscape erosion control measures and the disturbed area will be hydroseeded with a native seed mix appropriate for the area. Traffic control will be required during construction.
Contact Information
Name
Juliane Smith
Agency Name
Caltrans
Job Title
Senior Environmental Scientist (NEPA/CEQA Specialist)
Contact Types
Lead/Public Agency / Project Applicant / Parties Undertaking Project
Address
Phone
Email
Location
Cities
Daly City
Counties
San Mateo
Regions
Northern California, San Francisco Bay Area
State Highways
HWY-1
Other Location Info
The project is located on Highway 1 at post mile R47.6 in San Mateo County at the interchange connecting Interstate 280 and Highway 1.
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
PRC 21084; 14 CCR 15301 Class 1(d)
Reasons for Exemption
Class 1(d) Existing Facilities. The project is not anticipated to result in any environmental impacts. The project contains a number of standardized project measures which are employed on most, if not all, Caltrans projects and were not developed in response to any specific environmental resources.
County Clerk
San Mateo
Attachments
Notice of Exemption
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