Alderpoint Road P.M. 42.1 Culvert Replacement


SCH Number
Public Agency
Regional Water Quality Control Board, Region 1 (North Coast), Santa Rosa
Document Title
Alderpoint Road P.M. 42.1 Culvert Replacement
Document Type
NOE - Notice of Exemption
Document Description
A slipout occurred on Alderpoint Road at Post Mile 42.1 during the winter storms of 2005-2006. The slipout extends approximately 30 feet down the slope and is approximately 240 feet at its widest point below the roadway. The slipout surrounds an existing 18-inch diameter plastic culvert that conveys and intermittent stream under the roadway. The slipout caused damage to the roadway and shoulder, and also caused the culvert to separate. The purpose of the project is to repair the culvert, slipout and roadway. The project involves installation of a stabilization trench and subsurface drain pipe.

Contact Information

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


Other Location Info
near Bridgeville

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Reasons for Exemption
The project involves repair of an existing road involving no expansion of use.

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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