Devil's Gate Sediment Removal and Management Project (Lake or Streambed Alteration Agreement No. 1600-2015-0263-R5)

9 Documents in Project


SCH Number
Lead Agency
Los Angeles County Flood Control District
Document Title
Devil's Gate Sediment Removal and Management Project (Lake or Streambed Alteration Agreement No. 1600-2015-0263-R5)
Document Type
NOP - Notice of Preparation
Present Land Use
Open Space

Document Description
Note: Review per lead The proposed project would remove up to 4.0 million cubic yards of sediment from the reservoir behind Devil's Gate Dam to restore it to its current design standard, and establish a reservoir configuration more suitable for routine maintenance activities including sediment management. A specific excavation boundary within the project boundary, ultimate reservoir configuration, and volume of sediment to be removed within the boundary will be determined based on locations of access roads; areas for preservation or restoration of native vegetation; and the amount and location of sediment inflow that occur during the upcoming storm seasons. The proposed project is expected to occur between Spring 2014 and Winter 2019.

Contact Information
Ryan Butler
Los Angeles County Flood Control District
Lead/Public Agency
P.O. Box 1460
Alhambra, CA 91802-9947

Phone : (626) 458-6133


34°11'09"N 118°10'31"W
Los Angeles
Cross Streets
Oak Grove Drive and Windsor Drive
Total Acres
State Highways
Hwy 210
La Canada HS
Arroyo Seco

Notice of Completion

Review Period Start
Review Period End
Development Type
Other (Flood Control debris basin)
Local Action
Flood Control
Project Issues
Aesthetics Air Quality Biological Resources Cultural Resources Cumulative Effects Geology/Soils Hazards & Hazardous Materials Hydrology/Water Quality Land Use/Planning Mineral Resources Noise Public Services Recreation Schools/Universities Transportation Vegetation Wetland/Riparian Wildfire
Reviewing Agencies
Cal Fire California Department of Conservation (DOC) California Department of Fish and Wildlife, South Coast Region 5 (CDFW) California Department of Parks and Recreation California Highway Patrol California Regional Water Quality Control Board, Los Angeles Region 4 (RWQCB) Department of Toxic Substances Control Resources Agency California Native American Heritage Commission (NAHC) California Department of Transportation, District 7 (DOT) Department of Water Resources

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, 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.

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