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R. C. Culler

Publications and source records attributed to R. C. Culler.

4 recordsLinked to original sources
USGS1978

Management of flood-plain vegetation, 1967 to 1972, San Carlos Indian Reservation, Arizona

During 1967-71, 15,800 acres of flood-plain vegetation were cleared from a 26-mile reach of the Gila River valley and a 9-mile reach of the San Carlos River valley. Both areas are on the San Carlos Apache Indian Reservation, Arizona. The area cleared in the Gila River valley included the Gila River Phreatophyte Project and the clearing was conducted as prescribed by the experimental design of that research program. Establishment of replacement vegetation was attempted on the cleared areas with indifferent success. The report outlines methods used to remove the vegetation and to discourage its subsequent regrowth. Costs of the clearing operation are given by vegetation type, and descriptions of the procedures used for establishing new vegetation are given. Clearing and subsequent maintenance of parts of the flood plain were hampered by channel clogging and subsequent flooding of adjacent areas. Part of the area selected for clearing lies within the San Carlos Reservoir. The wide range of water level in the reservoir further aggravated maintenance of an inflow channel. Both draglines and a dredge were used to open a channel to the reservoir. Because the flow of the Gila River is intermittent, vegetation becomes established in the channel at the head of the reservoir during periods of no flow. The report concludes that the presence of the vegetation promotes silt deposition and further clogging. Inflow channel maintenance is a persistent problem that will require well-planned repetitive clearing of vegetation at the head of the reservoir.

Arizona↗
USGS1961

Hydrology of the upper Cheyenne River basin: Part A. Hydrology of stock-water reservoirs in upper Cheyenne River basin; Part B. Sediment sources and drainage-basin characteristics in upper Cheyenne River basin

The objective of this investigation was to determine the effect on runoff of the many stock reservoirs in the Cheyenne River basin above Angostura Dam. As a first step it was necessary to determine, within reasonable limits of accuracy, the number of reservoirs in the basin, the storage capacity, the drainage area, and the water loss from each. A sampling method was adopted because the size of the basin, 9,100 square miles, prohibited examination of all reservoirs within the drainage area. Forty-nine sample areas of 9 square miles each were selected as a 5-percent sample of the 955 complete quarter townships within the basin above Angostura Dam. All reservoirs located within the sample quarter townships were surveyed.

South Dakota, Wyoming↗