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 Preperation

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
P.O. Box 1460
Alhambra, CA 91802-9947

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
Other Action Other Action: Flood Control
Project Issues
Aesthetic/Visual Air Quality Archaeologic-Historic Biological Resources Forest Land/Fire Hazard Geologic/Seismic Minerals Noise Public Services Recreation/Parks Schools/Universities Soil Erosion/Compaction/Grading Toxic/Hazardous Traffic/Circulation Vegetation Water Quality Wetland/Riparian Land Use Cumulative Effects
Reviewing Agencies
Cal Fire California Department of Parks and Recreation California Highway Patrol Department of Conservation Department of Fish and Wildlife, Region 5 Department of Toxic Substances Control Regional Water Quality Control Board, Region 4 Resources Agency Native American Heritage Commission Caltrans, District 7 Department of Water Resources
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