Humboldt Co. DPW - Lower Cappell Road, P.M. 2.5, Culvert Restoration Project

Summary

SCH Number
2008098276
Public Agency
Regional Water Quality Control Board, Region 1 (North Coast), Santa Rosa
Document Title
Humboldt Co. DPW - Lower Cappell Road, P.M. 2.5, Culvert Restoration Project
Document Type
NOE - Notice of Exemption
Received
Posted
9/24/2008
Document Description
Heavy rains in late 2005 and early 2006 caused the 24-inch diameter and 40-foot long culvert Chqui Creek to plug with debris and the creek overtopped its banks. The high flows were diverted over Lower Cappell Road and caused erosion along the road shoulder and around the culvert outlet. The project involved excavating the roadway, removing surface. Excess loose material around the culvert inlet area will be removed, and scoured areas around the culvert outlet and along the embankment will be restored. Culvert excavation and replacement activities will temporarily impact 600 square feet and 60 linear feet of ephemeral stream channel including 400 square feet and 40 linear feet if channel that is already filled by the existing 24-inch diameter culvert and fill. Rock slope protection at the culvert outlet will permanently impact 36 square feet of stream channel and 12 linear feet stream bank. The proposed 36-inch diameter and 4-foot long culvert will be placed in the same location as the existing culvert and will not result in any additional permanent impacts to the stream channel.

Contact Information

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

Location

Counties
Humboldt

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
section 15301
Reasons for Exemption
The project involves replacing and existing culvert in the same location involving negligible or no expansion 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 state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613.

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