Greenhorn Sediment Removal at Rollins Reservoir Project

4 Documents in Project


SCH Number
Lead Agency
Nevada Irrigation District
Document Title
Greenhorn Sediment Removal at Rollins Reservoir Project
Document Type
EIR - Draft EIR
Project Applicant
Nevada Irrigation District

Document Description
The Project includes the annual removal of sediment from the Greenhorn Arm of Rollins Reservoir. Due to the annual migration of aggregate from Greenhorn Creek into the Project Site, the Project will be ongoing with the ultimate goal of maintaining water storage capacity in Rollins Reservoir. Ultimately, NID would like to restore historic water storage capacity in Rollins Reservoir, returning the Project Site to pre-1965 conditions (following construction of Rollins Reservoir). However, with the extent of sediment build-up and the annual migration of aggregate to the Greenhorn Arm of Rollins Reservoir, it is unlikely that NID will be able to fully restore historic water storage capacity. Three primary Project components will be implemented annually: (1) notification/mobilization; (2) sediment removal; and (3) demobilization. The Project site encompasses all areas necessary for implementation of the Project. This includes the access road, staging areas, haul roads, stockpile area, and sediment removal area (i.e., Work Area). In addition, the Project includes implementation of a water quality and methylmercury monitoring program.

Contact Information
Gary D. King
Nevada Irrigation District
1036 West Main Street
Grass Valley, CA 95945

Phone : (530) 273-6186


39°11'14.5"N 120°56'30.7"W
Cross Streets
You Bet Road and Greenhorn Creek
Total Acres
Parcel #
N/A. Sections 2, 3, 10, and 11
State Highways
Chicago Park ES
Greenhorn Creek, Rollins Reservoir, Bear River

Notice of Completion

Review Period Start
Review Period End
Development Type
Other (Sediment Management Project)
Local Action
Draft EIR
Project Issues
Aesthetic/Visual Air Quality Archaeologic-Historic Biological Resources Noise Public Services Recreation/Parks Soil Erosion/Compaction/Grading Toxic/Hazardous Traffic/Circulation Vegetation Water Quality Wetland/Riparian Land Use Cumulative Effects Energy & Wildfire
Reviewing Agencies
Air Resources Board, Transportation Projects California Department of Fish and Wildlife, North Central Region 2 California Department of Parks and Recreation California Highway Patrol California Native American Heritage Commission California Regional Water Quality Control Board, Central Valley Sacramento Region 5 Central Valley Flood Protection Board Department of Water Resources Office of Historic Preservation Resources Agency State Water Resources Control Board, Division of Drinking Water State Water Resources Control Board, Division of Water Rights California Department of Transportation, District 8


Environmental Document
_NID_GSR DEIR_20190411   PDF 40914 K
NOC   PDF 717 K
State Comments
2017052054 caltrans   PDF 915 K

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