WSP00707 - Laserfiche WebLink

Home Browse Search

nrOQr.; \J d ."J c. . Dam and Sargent Canal system serving 13,650 acres in this unit. The water supply is diverted from the Middle Loup River into the Sargent Canal under an appropriated natural flow right from the Sta.te of Nebraska. These di- versions may exceed the natural flow appropriation of 195 cfs by an exchange of storage from Sherman Reservoir, provided that water is available after all senior appropriations are satisfied and the excess is not greater than the storage releases from Sherman Reservoir. 1974 SUMMARY The annual precipitation over the Sargent Unit \\ooas about:. 55 pt2:rcent of nor- mal. The diversions into Sargent Canal of 25,813 acre-feet were slightly below normal year forecasts, of which 4,108 acre-feet were in excess of the Sargent Irrigation District's natural flow appropriation. The diversions exceeded the appropriated right for 39 days during 1974. There were 12,562 acres irrigated with a gross crop value of $3,842,728, which is about $1,300,000 greater than in 1973. ,':":' '/,'.. ',.:" 1975 OUTLOOK .. The Loup Basin Reclamation District estimates that 12,750 acres in the Sargent unit will be irrigated in 1975. The water supply is expected to be adequate. FAffiffiLL UNIT, MIDDLE LOUP DIVISION IN NEBRASKA GENERAL The Loup Basin. Reclamat.ion District operates and maintains the Arcadia Di- version Dam, Sl';~an Feeder Canal, Sherman Dam and Reservoir, and the Far- well Canal syste:n serving 48,250 acres of Farwell Irrigation District land. Diversions are also made through the Arcadia Diversion Dam to 13,500 acres of non-project lands in the l1iddle Loup Public Power and Irrigatio:1 District. under appropriated natural-flow water rights. :.:;, " During the winter months, the pool level of Sherman Resel-voir is normally regulat~d to 5 feet below the top of the conoervation capacity to avoid ice damage to the upstream face of Sherman Dam. This low pool level also minimizes seepage from the reservoir into the ground-water table. Each spring, diversions int.o Sherman Feeder Canal from the Niddle'Loup River are regulated to fill the consenration capacity of ShelTIan Reservoir by mid-June. The gradual rising water surface in the spring is ideal for fish spawning. ;":>< Whenever the flows in the Middle Loup River at Arcadia, Nebraska, exceed 6,000 cfs, and safe capacity flows are diverted into Sherman Feeder C~nal to Sherman Reservoir, flood control benefits can be accrued by such operations. 10