Trinity Alps Resort Summer Swimming Dam


SCH Number
Public Agency
California Department of Fish and Wildlife, Northern and Eureka Region 1 (CDFW)
Document Title
Trinity Alps Resort Summer Swimming Dam
Document Type
NOE - Notice of Exemption
Document Description
The California Department of Fish and Wildlife has executed Lake and Streambed Alteration Agreement number 1600-2019-0245-R1, pursuant to Section 1602 of the Fish and Game Code to Trinity Alps Resort. The project is limited to installation of an annual summer swimming dam for recreational purposes using an excavator. The swimming dam shall be built using clean boulders and rocks stockpiled on the banks during winter and at no time shall rocks from the streambed or channel be pushed up or graded. Fish passage shall be ensured at all times, allowing water to flow at an appropriate depth and velocity through the side channel to allow volitional fish passage up and down stream around the dam. The dam is authorized to be a maximum of 6 feet tall (with seasonal height based on an ability to maintain fish passage criteria) and span the full channel. Plastic shall only be used when necessary to maintain an adequate fish passage criteria in the side channel used for fish passage and shall not block the side channel entrance. Dam installation will not occur prior to June 1 and deconstruction of the dam will commence no later than October 15. Decomposed granite will be stockpiled on the southern bank and will be used for a beach during summer. Grading or smoothing of this sand will not substantially alter the water’s edge or remove vegetation.

Contact Information

Adam McKannay
Agency Name
Department of Fish and Wildlife
Contact Types
Lead/Public Agency


Northern California
Other Location Info
On the Stuart Fork of the Trinity River

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
15301, 15304
Reasons for Exemption
The project involves the operation, repair and maintenance of an existing summer swim dam with no diversion of water and includes a fish bypass side channel as well as minor alteration and maintenance of the existing swim beach area. There will be no significant adverse impact on endangered, rare, or threatened species or their habitat pursuant to section 15065 of the CEQA guidelines.


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