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Recapitulation of projects for first revision lower Colorado drainage basin problems and programs for Nevada, October 16, 1937
Prioritized list of projects and estimated costs for flood/erosion control projects in southern Nevada.
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Letter from J. P. Martin, Regional Engineer (Ogden, Utah) to John H. Wittwer, County Extension Agent (Las Vegas), October 13, 1937
Mr. Martin responding to John Wittwer regarding Department of Agriculture priorities and costs for flood control projects in the Moapa Valley. Letter signed by the Acting Regional Engineer for J. P. Martin.
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Report on flood in Meadow Valley Wash, March 3rd to 5th inclusive, March 12, 1938
Summary of the damage from a flood in the Moapa Valley on March 3-5, 1938
Transcribed Notes: Transcribed from handwritten text on pg. 3: "West of the Flood Channel and on west side of Highway except for a few acres west of Highway and East of Channel in Logandale above point where Highway bridge crosses Channel. # 10 acres early vegetables were silted over lightly making them unfit for shipment. About 5-10 acres will need re-leveling. One of the most important aspects of the entire experience, that of the supervisory personnel getting this lesson which could not be learned without just such an object lesson."
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Cooperative agreement: Wells Siding flood control project, April 1938
Agreement between the Muddy Valley Irrigation Company and the Moapa Soil Conservation District for a flood control project on Wells Siding.
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Meeting minutes regarding a Moapa Valley flood channel, Logandale, Nevada, December 5, 1940
Minutes of meeting of agencies involved in the work to improve the Lower Moapa Valley flood channel.
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Progress Report for J. H. Wittwer, 1940-41 program
List of activities and projects worked on by John Wittwer in 1940-41. Report has penciled comments in several places.
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Report of meeting at Office of U. S. Engineers - Los Angeles, California, April 15, 1941
Report of meeting to discuss and outline, and if possible, form a unit plan of cooperation for the pending flood control program in the Moapa Valley and Meadow Valley Wash.
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Report on Moapa Flood, August 11, 1941
Report of the damage caused by a flood in August 11, 1941.
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History of major floods in Moapa valley and adjacent washes, after 1945
List of the major floods in the Moapa Valley with map to show locations of the floods.
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Report, The flood control program - Moapa area, after 1942
Cost of Civilian Conservation Corp work in the Moapa Valley and the benefits accrued to the residents of the valley.
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