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

9 Documents in Project

Summary

SCH Number
2011091084
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
OTH - Other Document
Received

Document Description
Note: Response to Comment The Proposed Project will remove sediment from Devil's Gate Reservoir to restore capacity and to protect the dam and its valves to reduce the risk of flooding in the communities located downstream along the Arroyo Seco. This effort will include removal of approximately 2.9 million cubic yards of existing excess sediment in the reservoir in addition to any additional sediment that accumulates during construction. Sediment removal activities are expected to occur over the course of approximately 5 years beginning Summer 2015. Reservoir management is expected to start after 2020. The purpose of the proposed annual management is to reduce buildup of sediment in the reservoir management area and eliminate or substantially reduce the occurrence of another large-scale sediment removal project in the future.

Contact Information
Christopher Stone
Los Angeles County Flood Control District
P.O. Box 1460
Alhambra, CA 91802-1460

626 458 6100

Location

Coordinates
34°11'09"N 118°10'31"W
Cities
Pasadena
Counties
Los Angeles
Cross Streets
Oak Grove Drive and Windsor Drive
Total Acres
120
Parcel #
5823031900
State Highways
Hwy 210, 2
Schools
La Canada HS
Waterways
Arroyo Seco

Notice of Completion

Development Type
Other (Flood Control debris basin)
Local Action
Other Action Other Action: Flood Control
Project Issues
Cumulative Effects Landuse Wetland/Riparian Water Quality Vegetation Traffic/Circulation Toxic/Hazardous Soil Erosion/Compaction/Grading Schools/Universities Recreation/Parks Public Services Noise Minerals Geologic/Seismic Forest Land/Fire Hazard Biological Resources Archaeologic-Historic Aesthetic/Visual
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