Log Cabin and Our House Diversion Dams Sediment Management Plan

4 Documents in Project


SCH Number
Lead Agency
Yuba County
Document Title
Log Cabin and Our House Diversion Dams Sediment Management Plan
Document Type
MND - Mitigated Negative Declaration
Present Land Use
General Plan Designation: Log Cabin Diversion Dam: Agricultural/Rural Residential Zone 20/Timberland. Our House Diversion Dam: Rural/Residential and Forest 40. Disposal Site 1: Recreation. Disposal Site 2: Urban and Built-up. Disposal Site 3: Forest. Revegetation: Forest and Agricultural/Industrial District. Zoning: Log Cabin Diversion Dam: Exclusive Agricultural 40 and Resource Preservation and Recreation (Yuba County 2016); Our House Diversion Dam: Rural/Residential (Sierra County 2012) and Forest-40 (Nevada County 2010); Disposal Site 1: Resource Preservation and Recreation (Yuba County 2016), Disposal Site 2: Agricultural and Industrial District (Yuba County 2016), Disposal Site 3: Forest (Sierra County 2009) and Mitigation Site: Agricultural and Industrial District (Yuba County 2016).

Document Description
The purpose of the Plan is to prescribe procedures and guidelines for the management of sediment behind Log Cabin Diversion Dam and Our House Diversion Dam. The objectives of the Plan are twofold: 1) to provide for dam safety and proper functioning of FERC Project facilities, especially the fish release and low level outlet valves; and 2) to maintain the health of the aquatic environment downstream of the dams by allowing the passage of sediments that occur behind the dams. The Plan is located on TNF, YCWA, and private lands in Nevada, Sierra and Yuba counties. Log Cabin Diversion Dam is located in Yuba County, and Our House Diversion Dam is located in Nevada and Sierra counties. Sediment management at both Log Cabin and Our House diversion dams includes five components: 1) maintenance of minimum pools; 2) passage of sediment; 3) removal of outlet blockages; 4) planned mechanical removal of sediment, when needed; and 5) emergency removal of sediment. The main features of the proposed project area are: Log Cabin Diversion Dam and Impoundment (3.57 acres); Our House Diversion Dam and Impoundment (10.10 acres); Disposal Site 1 (9.51 acres); Disposal Site 2 (11.6 acres); Disposal Site 3 (80 acres), Celestial Valley Mitigation Site (2.5 acres), Log Cabin Temporary Laydown area (0.34 acre), Our House Temporary Laydown area (0.28 acre), and access roads. Sediment passage would be done between October 31 and March 21, in the years when it is implemented. Sediment removal would be conducted in low flow conditions, September 15 through November 15 in a normal year, during years when it is necessary.

Contact Information
Jacob Vander Meulen
Yuba County Water Agency
Lead/Public Agency
1220 F Street
Marysville, CA 95901

Phone : (530) 740-7071

Yuba County Water Agency
Project Applicant


Nevada Sierra Yuba
Total Acres
State Highways
Camptonville Elementary
Oregon Creek, Middle Yuba River
Other Location Info
Coordinates: 39.4402/121.0589, 39.4115/120.9974, 39.3872/121.1353, 39.4213/121.0667, 39.4382/121.0212, 39.4269/121.0663 Parcel: Nevada County: 6101055000, Sierra County: 006030018, 006010044, Yuba County:641800020000,642600130000,64240001000,64240008000,64250029000, 64250030000, 1001001000,64250031000,and 64250024000. Section, TWN, Range: Log Cabin Diversion Dam 10,11, 18N, 08E; Our House Diversion Dam 20, 18N, 08E; Disposal Site 1 25, 18N, 07E; Disposal Site 2 15, 18N, 08E; Disposal Site 3 15, 18N, 08E; Celestial Valley Revegetation Site 7,13,18, 18N, 08E, 09E

Notice of Completion

Review Period Start
Review Period End
Development Type
Other (Sediment Management from Reservoirs)
Local Action
Management Plan
Project Issues
Air Quality Biological Resources Cultural Resources Geology/Soils Hydrology/Water Quality Vegetation Wetland/Riparian
Reviewing Agencies
California Air Resources Board (ARB) California Department of Conservation (DOC) California Department of Fish and Wildlife, North Central Region 2 (CDFW) California Department of Parks and Recreation California Department of Water Resources (DWR) California Highway Patrol (CHP) California Native American Heritage Commission (NAHC) California Natural Resources Agency Central Valley Flood Protection Board Office of Historic Preservation State Water Resources Control Board, Division of Drinking Water State Water Resources Control Board, Division of Water Quality California Department of Transportation, District 3 (DOT) California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB)


Environmental Document
2019129049_Caltrans_TUL-198-5   PDF 281 K Attachment A   PDF 117 K Draft IS-MND_Sed Plan_Final +Attachments   PDF 50699 K Notice of Availability   PDF 104 K Summary Form + Attachment   PDF 6649 K
NOC   PDF 790 K
State Comments
2019129049_DOT_Shirk Road Widening and Mill Creek Culvert Modification Project   PDF 161 K 2019129049_RWQCB   PDF 237 K

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