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<br />, <br /> <br />This gaging station registers releases from Caballo Reservoir, which are functions of the <br />demands for project water and the available water supply. <br /> <br />Rincon Valley <br /> <br />The Rincon Valley extends from Caballo Narrows downstream to Selden Canyon. This <br />valley is approximately 37 miles in length and as much as 2 miles in width. Elevations range <br />from about 4,150 feet at the stream gaging station below Caballo Dam to about 400 feet in <br />Selden Canyon. Approximately 17,000 acres are irrigated in this valley, most of which receive <br />water from the Rio Grande Project in the EBID. <br /> <br />The Percha Diversion Dam is the diversion facility for the Rincon Main Canal and the <br />only one in the Rincon Valley. (See Plate 1 and Figure 2-2.) It is located 2 miles downstream <br />from Caballo Dam. It is a rubble concrete weir, 14 feet high and 350 feet long with radial sluice <br />gates, that was placed in service in March 1918. The Rincon Main Canal is 28.1 miles long and <br />is divided into four sections known, in downstream order, as the Arrey, Garfield, Hatch, and <br />Rincon Canals. Percha Diversion Dam and the Rincon Main Canal replaced five old community <br />canals that were in use prior to their construction (USBR, 1913). <br /> <br />The Rincon Main Canal diverts from the west bank of the Rio Grande. As indicated <br />previously, the first section of the Rincon Main Canal is referred to as the Arrey Canal. It is 4.8 <br />miles long and carries water not only for four laterals that are supplied from it, but also for the <br />Garfield, Hatch, and Rincon Canals. According to EBID, it had a capacity of 330 cfs in 1996. <br />The Rincon Main Canal crosses under the Rio Grande in the Garfield Siphon to the canal <br />section known as the Garfield Canal. The Garfield Canal is 9.33 miles long and serves 13 <br />laterals. It had a capacity of 300 cfs in 1996. The canal then crosses back under the Rio <br />Grande to the west side of the river in the Hatch Siphon to the canal section known as the Hatch <br />Canal. The Hatch Canal is 8.33 miles long and serves 6 laterals. It had a capacity of 200 cfs in <br />1996. Finally, the canal crosses back under the Rio Grande to the east side of the river in the <br />Rincon Siphon to the canal section known as the Rincon Canal. The Rincon Canal is 5.56 miles <br />long and serves four laterals. This canal had a capacity of 100 cfs in 1996. <br /> <br />(.~. C :,J. <br />,j \0. _ <br /> <br />2-8 <br />