Grizzly Valley Dam Spillway Coring (OM-OFD-2020-002)


SCH Number
Lead Agency
Water Resources, Department of (California Department of Water Resources)
Document Title
Grizzly Valley Dam Spillway Coring (OM-OFD-2020-002)
Document Type
NOE - Notice of Exemption
Project Applicant
Department of Water Resources

Document Description
HDR Engineering and Syblon-Reid will perform destructive examination of Grizzly Dam spillway. All work will be confined to the interior of spillway consisting of concrete coring in numerous locations through the invert of the spillway. Concrete pieces will be removed to expose and repair damaged rebar. Scaffolding will be temporarily installed within the spillway to facilitate access. The contractor shall follow BMP's to contain drilling fluids and dispose of waste water at an approved facility offsite. All equipment staging will be on improved areas near the crest and toe of the dam. All work will be within DWR right-of-way.

Contact Information
Sara Paiva-Lowry
Department of Water Resources
Division of Operations and Maintenance 1416 9th Street
Sacramento, CA 95814

Phone : (916) 653-9342


39°52'57.4"N 120°28'33.6"W
Other Location Info
Grizzly Valley Dam, Lake Davis. At the cross streets of Lake Davis Road and Grizzly Road in Plumas County.

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Class 1, Existing Facilities, Section No. 15301(b)
Reasons for Exemption
The State Water Project provides significant and important services to many Californians. This project is exempt because it involves routine maintenance activities to existing facilities. This project will not result in impacts to special status species or habitat. Because this activity can be implemented without any significant environmental impacts, the Categorical Exemption Class 1 will be used for CEQA compliance.


Notice of Exemption
2020050163_Grizzly Spillway Lake Davis   PDF 475 K

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