Laserfiche WebLink
<br />John Martin Reservoir supplies water to irrigated lands as far downstream as Garden <br />City, Kansas. Current reservoir operations for conservation storage and release follow the plan <br />adopted by the Arkansas River Compact Administration in 1980, as amended. Releases for <br />irrigation and delivery normally are made between April 1 and October 31 of each year. Inflow <br />is stored in November through March except for releases required for flood control. Flood <br />control operations begin when John Martin Reservoir storage exceeds an elevation of 3 ,851 <br />feet. The current operational channel capacity of the Arkansas River is approximately 3,000 <br />cubic feet per second (cfs) at Coolidge, Kansas. (Actual release from the dam may exceed <br />3,000 cfs when flows are expected to diminish before reaching Coolidge due to irrigation <br />withdrawal or transit loss). <br /> <br />To illustrate the flood control function of John Martin Dam, Table 2-1 lists the largest <br />mean discharge per year at USGS stream gaging stations upstream and downstream of the dam <br />in 1942 through 1999. Annual hydro graphs of recent years (1985, 1987, 1995, and 1999) when <br />John Martin Dam releases exceeded 2,900 cfs are depicted in Figures 2 through 5, respectively. <br /> <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />,I <br />II <br />I <br />I <br />I <br />I <br />I <br />,I <br />I <br />