Grant Lake Spillway Modification Project

Summary

SCH Number
2016081059
Lead Agency
Los Angeles, City of (City of Los Angeles)
Document Title
Grant Lake Spillway Modification Project
Document Type
NEG - Negative Declaration
Received

Document Description
The City of LA Department of Water and Power is proposing to modify the spillway of Grant Lake Reservoir to allow for controlled release of higher volumes of water from the reservoir to Rush Creek during specific time periods. The project would be required per the terms of proposed amendments to SWRCB License Nos. 10191 and 10192. The SWRCB is the decision making body for consideration and approval of the License amendments. The project would include: installation of two Langermann Gates side by side inside a concrete headwall located at the spillway lip; realignment of the concrete spillway by excavating a new trapezoidal channel; and restoration of access across the spillway by replacing the vehicular bridge or placing a cast in place box concrete culvert at the Arizona Crossing.

Contact Information
Nadia Parker
City of Los Angeles
111 North Hope St
Los Angeles, CA 90012

213-367-1745

Location

Counties
Mono
Zip
93529
Total Acres
50
State Highways
Hwy 395, SR 158
Waterways
Grant Lake, Rush Creek
Township
1S
Range
26E
Section
3,4,9,
Other Location Info
June Lake, Lee Vining

Notice of Completion

Review Period Start
Review Period End
Development Type
Water Facilities (spillway Type)
Project Issues
Cumulative Effects Landuse Growth Inducing Wildlife Wetland/Riparian Water Supply Water Quality Vegetation Traffic/Circulation Toxic/Hazardous Solid Waste Soil Erosion/Compaction/Grading Recreation/Parks Public Services Population/Housing Balance Noise Minerals Geologic/Seismic Forest Land/Fire Hazard Flood Plain/Flooding Drainage/Absorption Archaeologic-Historic Air Quality Agricultural Land Aesthetic/Visual
Reviewing Agencies
Regional Water Quality Control Board, Region 4 Caltrans, District 9 Department of Fish and Wildlife, Region 6 Air Resources Board, Transportation Projects California Department of Parks and Recreation California Highway Patrol Delta Protection Commission Native American Heritage Commission Office of Emergency Services, California Resources Agency State Lands Commission State Water Resources Control Board, Division of Water Rights
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