170 to 190 Redwood Drive Storm Damage Repair Project


SCH Number
Public Agency
Marin County
Document Title
170 to 190 Redwood Drive Storm Damage Repair Project
Document Type
NOE - Notice of Exemption
Document Description
The severe storm events of winter 2023 triggered a slip out of the downhill side of the roadway embankment between 170 and 190 Redwood Drive in Woodacre. The road was immediately closed to traffic at the slide location. The project generally consists of an 84-ft precast concrete lagging wall with steel soldier piles, drainage ditch grading, new storm drain culvert installation, installation of a rip rap apron at culvert outlet, pavement grinding, reconstruction of the roadway structural section in the failed area, paving 4” HMA over 8” of class 2 AB, and guardrail installation.

Contact Information

Jordan Manzano
Agency Name
Marin County - Department of Public Works
Job Title
Engineer II
Contact Types
Lead/Public Agency


Other Location Info
The project is located adjacent to the property address at Between 170 and 190 Redwood Drive in Woodacre, Marin County, CA.

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Statutory Exemption Section 15269. Emergency Projects (b)
Reasons for Exemption
This project includes actions taken to stabilize the embankment and protect the existing County roadway from failure and massive erosion into the creek below. The actions to be taken are essential to the safety and welfare of residents and the traveling public and to provide access for emergency and fire evacuation vehicles.
County Clerk


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