Partnering with Organized Labor to Support Reemployment

This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. Excerpt: ...areas In Arizona (8) 22. Zla Reservoir (1) 23. San Luis Wash basin (3) 24. Cornfield Wash basin (19) 25. Rio Colorado Reservoir (1) 26. Vlctorlno Wash Reservoir (1) 27. Ladron Peak area (2) 28. Hot Springs Wash basin (2) 29. Nordstrom Wash basin (3) Additional details relating to the reservoirs in each study area, together with a description of the drainage area and data on precipitation, runoff, and sediment yield are given further in the report. PREVIOUS INVESTIGATIONS Data pertaining to the rate of sediment deposition in reservoirs and to the unit rate of sediment yield from the drainage basins have been collected and reported upon by many investigators. Most of the data pertain to reservoirs on large perennial streams with large drainage basins, and for such streams, reliable information on both runoff and sediment yield is available. Considerable information is available on sediment yield for reservoirs on smaller drainage basins, but data on the accompanying runoff are meager. This is particularly true for ephemeral streams that drain western rangelands where conservation is now being intensified. In an important paper Stevens (1936) presented basic data from a variety of sources on the rate of sediment deposition in large reservoirs throughout the world. More recent reports on the measurement of sediment deposition in small stock reservoirs located in the midwestern and western States include South Dakota, (Gottschalk, 1946); Iowa and Nebraska, (Gottschalk and Brune, 1950); Utah, (King and Mace, 1953); Arizona, (Hains, Van Sickle, and Peterson, 1952); Washington, Idaho, and Oregon, (Flaxman and Hobba, 1955) Equations for estimating the sediment yield from some small drainage basins have been developed by use of the detailed information contained...