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<br />-.-..' <br /> <br />" <br />001885 <br /> <br />. <br /> <br />. <br /> <br />, <br /> <br />Sediment discharge data for the 1956 water year were released as <br />completed. <br /> <br />The report, "Investigations of sediment transportation, Middle <br />Loup River at Dunning, Nebraska, with apPlication of data from turbulence <br />f1U11le", was completed and submitted for publication as a water-supp1y paper. <br />"Progress report No. 1, Investigations of some sedimentation'charllcteristics <br />of a sand-bed stream", 1956, was completed and released to open,file. "A <br />preliminary draft of. "Progress report No, 2, Thvestigations of some sedi- <br />mentation characteristics of a sand-be4 strellll1", 1957, was' completl'd and <br />administratively released to the Bureau of Reclllll1ation for review.' The <br />investigations covered by the above reports ,were carried on in cooperation <br />with the Bureau of Reclllll1ation. <br /> <br />Sedimentation investigations in the Cheyenne River Basin relative <br />to the measurement of sediment discharge at two main-stem and. one tributary <br />station were continued. These investigations were supported by funds trans- <br />. ferredby-theBureau of--Rec1cama-t-ion.- <br /> <br />Studies of upland erosion and deposition to provide basic informa- <br />tion for land-treatment programs of the Department of Interior were continued <br />in as sociation with hydrologiC studies in the Willow Creek area near Fort <br />Peck, Montana, and in the Wind River, Bighorn River, and Cheyenne River basins, <br />Wyoming, The work included measurements of sediment yields in reservoirs, <br />correlated with appraisals of drainage basin characteristics, and measurements <br />of the progress of erosion or deposition. In the Willow Creek area, sediment <br />records were continued on eight groups of reservoirs; and in the Fifteenmile <br />Creek areaof Bighorn Basin, records were continued on two reservoirs. In the <br />Cheyenne Basin, records of sedimentation were collected on several ranges <br />established on the Box Creek water-spreader; and studies of erosion and <br />deposition and drainage-basin characteristics were made in several other sub- <br />basins . <br /> <br />A compilation report presenting essentially all records collected <br />on sediment yields and runoff in small drainage basins in the Missouri Basin, <br />as well as other parts of western United States, was completed in draft form <br />and was to be reviewed for publication in a water-supp4' paper. <br /> <br />Sedimentation investigations in the Medicine Creek Basin, Nebraska <br />were continued, These investigations were supported by funds transferred by <br />the Bureau of Reclllll1ation and Agricultural Research Service. The Soil Con- <br />servation Service ap.d University of Nebraska also participated. in the joint <br />Medicine Creek Watershed program. <br /> <br />Sedimentation investigations in Whitehead sub-watershed, Nebraska <br />and Kiowa Creek Basin, Colorado, including deposition of sediment in two <br />detention reservoirI'. were continued. The Kiowa Creek Basin program also <br />included the measurement of sediment discharge at two stations downstrellll1 <br />from the detention reservoir. These investigations were supported by funds <br />transferred by the Soil Conservation Service. <br /> <br />Pllul C. Benedict <br />Regional Engineer <br />J~e 30, 1957 <br /> <br />