Caltrans, Highway 175 Storm Damage Repair Projects


SCH Number
Public Agency
Regional Water Quality Control Board, Region 1 (North Coast), Santa Rosa
Document Title
Caltrans, Highway 175 Storm Damage Repair Projects
Document Type
NOE - Notice of Exemption
Document Description
The proposed project includes five locations along Highway 175 at post miles (PM) 5.90, PM 6.48, and PM 9.25/9.40 in Mendocino County. The purposes and objectives of the project are to repair and replace highway fill slopes and culverts to protect the roadway from erosion-related structural failures. The proposed construction activities will consist of: replacing culverts; installing a new drop inlet vault; grading drainage ditches; installing underdrains; replacing culverts; extending outlet down-drains; replacing asphalt and road base; installing a geosynthetic-reinforced embankment; installing rock slope protection (RSP); and conducting slope revegetation and erosion control.

Contact Information

Jeremiah Puget
Agency Name
Regional Water Quality Control Board, Region 1 (North Coast), Sa
Contact Types
Lead/Public Agency


Other Location Info
East of Hopland

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
15301(a) - existing facilities
Reasons for Exemption
Existing highway drainage system with minor impacts.

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613.

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