Sutter Slough Critical Erosion Repairs Flood System Repair Project


SCH Number
Lead Agency
Reclamation District 999 (RD999)
Document Title
Sutter Slough Critical Erosion Repairs Flood System Repair Project
Document Type
MND - Mitigated Negative Declaration
Present Land Use
Intensive Agriculture

Document Description
In January 2020, MBK Engineers (MBK), on behalf of the District, identified seven erosion sites along Sutter Slough based on observations from site reconnaissance, geometric analysis from a land survey of the levee, and a bank and bathymetric survey of the channel. MBK prioritized repairs based on a qualitative assessment of slope verticality, channel depth at waterside toe, levee geometry, channel meander, vegetated cover, and constructability. The project would address bank loss, toe scour, and erosion by flattening the waterside levee slope and placing approximately 18- to 24-inch riprap to reestablish the bank slope and channel.

Contact Information
Tina Anderson
MBK Engineers
Lead/Public Agency
38563 Netherlands Road
Clarksburg, CA 95612

Phone : (916) 456-4400

Reclamation District 999
Project Applicant


Solano Yolo
Cross Streets
Holland Road and Road 145
State Highways
84 and 160
River Delta and Bates Elementary
Sutter Slough, Sacramento River, Miner Slough, Steamboat Slough

Notice of Completion

Review Period Start
Review Period End
Local Action
Project Issues
Aesthetics Air Quality Biological Resources Cultural Resources Geology/Soils Hazards & Hazardous Materials Hydrology/Water Quality Noise Vegetation Wetland/Riparian Other
Reviewing Agencies
California Air Resources Board (ARB) California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW) California Department of Fish and Wildlife, North Central Region 2 (CDFW) California Department of Parks and Recreation California Department of State Parks, Division of Boating and Waterways California Department of Transportation, District 3 (DOT) California Department of Transportation, District 4 (DOT) California Department of Water Resources (DWR) California Governor's Office of Emergency Services (OES) California Highway Patrol (CHP) California Native American Heritage Commission (NAHC) California Natural Resources Agency Central Valley Flood Protection Board Delta Protection Commission Delta Stewardship Council Office of Historic Preservation State Water Resources Control Board, Division of Drinking Water State Water Resources Control Board, Division of Water Quality California State Lands Commission (SLC) California Department of Conservation (DOC) California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB)


Environmental Document
NOI   PDF 82 K RD 999 Sutter Slough ISMND wAppNOI   PDF 7924 K Summary_Form_for_Document_Submittal   PDF 623 K
NOC_signed   PDF 963 K
State Comments
2021010273_Conservation Comment   PDF 3849 K 2021010273_Conservation Comment 2   PDF 3227 K 2021010273_State Lands Comment   PDF 198 K 2021010273_Waterboards Comment   PDF 272 K

Disclaimer: The Governor’s Office of Planning and Research (OPR) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613. For more information, please visit OPR’s Accessibility Site.

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