Hemphill Diversion Structure Project
5 Documents in Project
Summary
SCH Number
2020090032
Lead Agency
Nevada Irrigation District
Document Title
Hemphill Diversion Structure Project
Document Type
NOD - Notice of Determination
Received
Posted
6/22/2022
Document Description
The existing Hemphill Diversion Structure is substantially deteriorated, and the structure continues to obstruct the passage of anadromous fish species under most flow conditions. Additionally, the existing diversion to Hemphill Canal is unscreened and does not exclude fish from entering the canal. The removal of the diversion
structure is necessary to allow for fish migration to occur year-round within Auburn Ravine. NID proposes to remove the existing Hemphill Diversion Structure and the Hemphill Canal inlet structure. The proposed project will construct a roughened channel (rough-rock ramp), install bank stabilization and erosion control measures
within Auburn Ravine, construct a modified inlet structure incorporating a cone fish screen on Hemphill Canal, and make modifications to the canal.
Contact Information
Name
Patrick Moeszinger
Agency Name
Department of Fish and Wildlife
Job Title
Senior Environmental Scientist (Specialist)
Contact Types
Responsible Agency
Phone
Location
Coordinates
Counties
Placer
Regions
Northern California
Other Location Info
The project site is located at the Hemphill Diversion Structure located in Auburn Ravine.
Notice of Determination
Approving Agency
California Department of Fish and Wildlife
Approving Agency Role
Responsible Agency
Approved On
County Clerk
Placer
Final Environmental Document Available at
the office location listed above for the Lead Agency. CDFW’s record of execution of the above Lake and Streambed Alteration Agreement as Responsible Agency is available at CDFW’s regional office.
Determinations
(1) The project will have a significant impact on the environment
No
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
Yes
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
No
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
No
(3) Mitigated measures were made a condition of the approval of the project
Yes
(4) A mitigation reporting or monitoring plan was adopted for this project
No
(5) A Statement of Overriding Considerations was adopted for this project
No
(6) Findings were made pursuant to the provisions of CEQA
Yes
Attachments
Notice of Determination
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