Marin SR 1 Retaining Wall and Curve Correction
Summary
SCH Number
2025110109
Public Agency
California Department of Transportation, District 4
(DOT)
Document Title
Marin SR 1 Retaining Wall and Curve Correction
Document Type
NOE - Notice of Exemption
Received
Posted
11/4/2025
Document Description
The project would construct a 330-foot-long soldier pile downhill retaining wall along southbound SR1, replace two existing culverts, install a new drainage inlet, and replace existing guardrails. The improvements are needed to stabilize the embankment and maintain highway function and safety.
Contact Information
Name
Katherine Neylan
Agency Name
Caltrans
Job Title
Senior Environmental Scientist, Specialist
Contact Types
Lead/Public Agency
Address
Phone
Location
Counties
Marin
Regions
Countywide, Northern California, San Francisco Bay Area
Other Location Info
SR 1 Post Mile 5.1 - 5.3.
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
Section 15301
Reasons for Exemption
Exiting facilities & no expansion of use. The project will not have a significant effect on the environment and no exceptions apply. Work is within existing highway right-of-way.
Attachments
Final Document(s) [Approved_Certified draft environmental documents]
Notice of Exemption
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