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The other relatively small water rights in the Austin Area are decreed for an accumulated <br />amount of approximately 75 cfs. Total irrigated acreage under the Austin area water rights is <br />estimated to be approximately 8,530 acres. <br />The "Austin Area Water Rights" represent a number of large irrigation structures with <br />relatively senior priorities which divert from the Gunnison River near the Town of Austin. <br />Based on inspection of GIS mapping of the irrigated acreage situated under the canals in this <br />vicinity. These irrigation structures were modeled explicitly without any special operating <br />rules. <br />2.2. Bostwick Park Project -Cimarron River Water Rights <br />This section describes the operation of the Bostwick Park Project and the major water rights <br />that divert water from the Cimarron River and the Little Cimarron River, tributaries of the <br />Gunnison River at Morrow Point Dam. The operations involve transbasin diversions, <br />deliveries to the Project 7 Water Authority, and a federal storage project to provide <br />supplemental irrigation supplies. <br />2.2.1. General Description of Cimarron River Water Rights and Diversions <br />Most of the water rights in the Cimarron and Little Cimarron drainages are used to <br />irrigate alfalfa and meadow hay on lands adjacent to the streams and the area where the <br />two streams join. The Cimarron Canal is a major irrigation ditch that diverts from the <br />Cimarron River and delivers the water to Uncompahgre River basin where the water is <br />used for irrigation in the Cedar Creek and Bostwick Park areas. The Cimarron Canal <br />holds direct flow water rights in the amount of 185 cubic feet per second (cfs) as <br />summarized in the following. <br />Cimarron Canal Water Rights <br /> Structure Appropriation Administration <br />Structure Name ID Date Number Amount <br />Cimarron Canal 560 4-01-1903 19448.00000 60 cfs <br />Cimarron Canal 560 3-28-1905 2039320175 39 cfs <br />Cimarron Canal 560 6-01-1925 2849727545 86 cfs <br />Silver Jack Reservoir 3548 7-01-1955 38532.00000 14,000 acre-feet <br />Silver Jack Reservoir 3548 7-01-1955 38532 <br />00000 30,600 acre-feet <br /> . (Cond.) <br />According to the Water Commissioner, the capacity of the canal is approximately 145 <br />cfs. Using mapping of irrigated acreage provided by the U. S. Bureau of Reclamation <br />(USBR) and the Division of Water Resources (DWR), the total acreage served by the <br />Cimarron Canal is estimated to be approximately 7,390 acres, which consists of <br />approximately 1,740 acres under the canal between its head gate and Cerro Summit <br />(return flows accruing to the Gunnison River), 3,775 acres in the Bostwick Park area <br />(return flows accruing to the Uncompahgre drainage), and 1,875 acres under the Hairpin <br />Ditch in the Cedar Creek drainage, also tributary to the Uncompahgre. <br />Gunnison River Basin Information 2-2 <br />