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5. Environmental Documents

Title:	Success Lake Water Control Manual Deviation : Final Environmental Assessment
Authors:	United States. Army. Corps of Engineers. Sacramento District.
Keywords:	Success, Lake (Calif.) Tule River (Calif.) Dams Flood control Environmental management Environmental protection
Publisher:	United States. Army. Corps of Engineers. Sacramento District.
Abstract:	A series of atmospheric river storms with heavy precipitation impacted California in January and February 2017. As a result most flood control reservoirs are at or above top of conservation levels and many regions of the state have saturated ground. The Tule River Water Association (TRA) has requested a deviation from the Water Control Manual at Success Lake. If granted by the U.S. Army Corps of Engineers (Corps), this deviation would allow TRA to construct a sandbag wall across the Success Lake spillway to increase the spillway elevation from 652.5 feet to 658.5 feet. This would allow a maximum increase of 4 feet in the reservoir’s gross pool to elevation 656.5 feet with 2 feet of freeboard. The purpose of this deviation is to prevent downstream flooding in the Tulare Lake Basin. As of April 17, 2017, Success Lake was at 640.08 foot elevation with approximately 56,000 acre-feet of storage in the reservoir. This is at 68% capacity, which is 16% encroachment into the allotted flood control storage. Corps’ water management currently estimates that Success Lake could reach the top of gross pool space (Elevation 652.5 feet) in early June, dependent on snow melt/inflow conditions and downstream water usage this spring.
Description:	Environmental Assessment and Finding of No Significant Impact
Rights:	Approved for Public Release; Distribution is Unlimited
URI:	https://hdl.handle.net/11681/40622
Size:	136 pages / 15.31 MB
Types of Materials:	PDF
Appears in Collections:	Environmental Documents