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'Prepared by the U.S. Department of the Interior, Geological Survey, in cooperation with the U.S. Department of Housing and Urban Development, Federal Insurance Administration. 1973.' Sheet 1: Las Vegas NE, Nev.; Sheet 2: Las Vegas SE, Nev.;...
1973-04-25
1973-04-25
Summary of situation, goals, duties of cooperating agencies, and procedures regarding the effort to prevent flooding and erosion threatening properties and silting Lake Mead. Cooperative extension work in agriculture and home economics, University...
1938-04-01
Report of the 1941 activities in the Clark County's Flood Control Program in overcoming the flood menace in the Las Vegas, Moapa, and Virgin Valleys. Project Number: State Office No. 172. Clark County No. 12
1941-11-01
Discussion of the formation of the Virgin River Watershed Flood Control District and Soil Conservation Committee and the efforts of all the individual soil conservation districts. Project Number: State Office No. 172. Clark County No. 12 and...
1939-11-01
Revised summary of situation, goals, duties of cooperating agencies, and procedures regarding the effort to prevent flooding and erosion threatening properties and silting Lake Mead. Report originally signed in May 1937. Handwritten notes...

Black & white photographs and negatives that document Winsor's career as an irrigation specialist and flood control researcher. Collectively, the photographs show the step-by-step construction of many dams and flood...

Dated March 31, 1934 with appendices added from 1938, this report contains photographs and summaries of 18 areas in Southern Nevada, specifically the northeastern portion of Clark County and a small area in Arizona. The report was to serve as a...
2024-04-25
Wittwer reported that in January of 1932, landowners in Logandale, through a local committee, levied a fee per acre and used the money to prepare for anticipated flooding. Project Number: State Office No. 103, Clark County No. 7 - MISCELLANEOUS....
1932-11-01
Discussion of the Civilian Conservation Corp work on flood control projects in the Virgin River and Moapa Valleys. Project Number: State Office No. 172, Clark County No. 12. Name of Project: Flood Control Program.
1934-11-01
List of the major floods in the Moapa Valley with map to show locations of the floods.
Chief Engineer tests and measurements of water conditions for better flood predictions.
1932-07-01
Prioritized list of projects and estimated costs for flood/erosion control projects in southern Nevada.
1937-10-16
List of major floods in the Moapa Valley with accompanying map.
2024-04-25
Follow-up report on chemical tests done for the pH balance measurements. Page 29, page 30, and page 32 of the pdf were rotated 180 degrees.
1956-12-01
The Wasatch Research Center photograph collection consists of 127 photographs taken or commissioned by the U.S. Forest Service Intermountain Forest and Range Experiment Station in Ogden, Utah and sent to the...

List of activities and projects worked on by John Wittwer in 1940-41. Report has penciled comments in several places.
2024-04-25
Spectacular waterfall at Coulee Dam surpasses Niagara in height. During the 1940 flood stage, the Columbia River was diverted through the outlet works and over a portion of the unfinished spillway section.
1940-06-02
2024-04-25
The 1938 high water of the Columbia River tops the upstream spillway blocks and floods the blockouts left for the outlet works gate installations at el. 934. The maximum flow for 1938 was 361,680 second feet.
1938-05-28
2024-04-25
View of damage to the railroad tracks.
2024-04-25
Portraits of Wesley Jones, lantern slides of Alaska, images of the flooding of the White and Cache Rivers, in Clarendon, Arkansas, and an album with images of the Mississippi River Flood of 1927; Wesley Livsey Jones was born on an...

Measurements (in acres) of water content in Azusa for flood predictions.
1932-07-01
Peak flow of the annual flood stage of the Columbia River is discharged over the dam in special diversion channels.
1940-05-29
2024-04-25
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