Marin County US-101 Ramp Metering Equipment Repair and Installation DDO (EA 04-0V010)
Summary
SCH Number
2025120595
Public Agency
California Department of Transportation, District 4
(DOT)
Document Title
Marin County US-101 Ramp Metering Equipment Repair and Installation DDO (EA 04-0V010)
Document Type
NOE - Notice of Exemption
Received
Posted
12/15/2025
Document Description
Caltrans proposes ramp metering equipment repairs, installation, and reactivation along US-101 from post mile (PM) 18.04 Nave/Robler Dr. to PM 20.4 Rowland Blvd in Novato, Marin County. With the upcoming completion of the Marin-Sonoma Narrows (MSN) Phase 7B HOV lanes project, and the completion of the HOV Traffic Analysis Study sponsored by the Metropolitan Transportation Commission (MTC), Transportation Authority of Marin (TAM), Sonoma County Transit Authority (SCTA), and Caltrans, the existing ramp metering equipment in the area required upgrades and repairs to ensure an efficient freeway system that operates at or near capacity. The current ramp metering equipment is missing or outdated. The project will include activities such as repair and installation of loop detectors, flashing beacons, advance warning signals, signs, and ramp metering foundations, as well as striping, at six locations.
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
Novato
Counties
Marin
Regions
Northern California, San Francisco Bay Area
State Highways
US-101
Other Location Info
The project is located on US-101 from post mile (PM) 18.04 Nave/Robler Dr to PM 20.4 Rowland Blvd in Novato, Marin County.
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 impacts resulting from the project.
County Clerk
Marin
Attachments
Notice of Exemption
Disclaimer: The Governor’s Office of Land Use and Climate Innovation (LCI) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, please contact the lead agency at the contact information listed above. For more information, please visit LCI’s Accessibility Site.