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~ r-.... "'\, Taylor Park Reservoir (Photo courtesy of Holley Noon) Stream and Lake Protection There are 195 instream flow segments totalling approxi- mately 1,219 stream miles in this basin. There are also 83 lakes with decreed natural lake levels. These decreed water rights are held by the CWCB to "protect the natural environment to a reasonable degree." The decreed flow or lake level for each of these instream flow segments and natural lakes is based on the flow or lake level required to maintain the water-dependent natural environment. Source: Colorado Water Conservation Board Wet and Dry Periods Every year, Colorado experiences at least one 100-year flood somewhere in the state. Colorado's total flood losses have been documented to be $4.9 billion to date. The basin's most recent flood event was May 21-26, 1984. The estimated total historic flood damages for this basin are $13.2 million to date. _I Dry Avg Wet ~ Major Imports into the Basin Name Diversions (acre-feet) 1 * Leon Lake Tunnel 2 Other Total 1,405 560 1,965 Major Exports from the Basin Name Diversions (acre-feet) 532,372 1,192 791 310 122 534,787 3 Redlands Canal 4 Divide Creek Highline Ditch 5 Tabor Ditch 6 Tarbell Ditch 7 Larkspur Ditch Total * Numbers in the above tables correspond to numbers that accompany arrows on the basin map (p. 5). Source: Water Division 4 1998 Annual Report, 10-year averages Waterfall on Nellie Creek (Photo courtesy of Dale Lough) June 1957 Basin floods Sept 1970 Basin floods May through June 1993 Basin floods June 1995 Basin floods I May through June 1984 Basin floods I I - II m m <Xl <Xl <Xl 0 ill o Ul ill w Ul ~ Ul ill o ~ Ul ~ o ill o o m ill Ul ill U; ill w o Source: Colorado Water Conservation Board and Division of Water Resources ~ o ~ Ul ill Ul o ~ o ill (J) Ul ill -...J o ill Ul Ul ill <Xl o ill <Xl Ul ill ill o ill ill ~ ~ ( Gunnison River Basin Facts - 3 )