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The annual flood stage of the Columbia River pours through the spillway diversion area of Grand Coulee Dam. A peak flow of 265,600 second feet was reached in 1940.
1940-06-03
2024-05-05
Map of the Las Vegas area showing the locations most likely to be flooded.
1973-05-05
Three men in scuba gear on the rocks at Nelson's Landing the day after the September 14, 1974 flood.
1974-09-15
Floods Working Paper, Bear River Basin Idaho, Utah, Wyoming, April 1977. Prepared for the Bear River Basin USDA Cooperative River Basin Study by the Soil Conservation Service, this report evaluates flooding problems in the Bear River Basin. Data...
1977-04-01
Interviews with and announcements from emergency responders and victims by two-way radio. Front of reel's box marked "#1"

2016-06-14
2016-06-14
Interview with Captain Terry Urista of the Larimer County Sheriff's Office about his experiences in the Big Thompson Canyon ordering people to evacuate during the 1976 Big Thompson flood and helping people in its aftermath. Credit: Oral History...
1976-05-05
2007-01-02
2007-01-02
Kathleen Winder interviewed by David McComb on September 3, 1976
1976-05-05
2007-01-02
2007-01-02
Interview with State Patrol Captain Bill Thomas about his experiences during the 1976 Big Thompson flood and its aftermath. Credit: Oral History Transcripts - Big Thompson Canyon Collection (MSS #3003), History Colorado, Denver, Colorado
1976-05-05
2007-01-02
2007-01-02
People, Places, and Issues, KCSU FM. Tom Keeton summarizing and presenting various opinions on reconstruction of US Highway 34 through the Big Thompson Canyon and its ecological impacts as well as the final decision to rebuild. Back of reel's box...
1976-09-05
2016-06-14
2016-06-14
Notes from meetings and telecons related to Wright-McLaughlin Engineers' role in 1976 Big Thompson recovery

2007-01-02
2007-01-02
Notes taken at Big Thompson Recovery Planning Council meetings between August and October 1976
1971-05-05
2024-05-05
1976-05-05
2007-01-02
2007-01-02
Correspondence to and from Wright-McLaughlin Engineers related to the 1976 Big Thompson flood recovery

2007-01-02
2007-01-02
Toups Corporation water and wastewater technical plan report to Willard Quirk, Flood Recovery Coordinator, including the method used to develop the water and wastewater alternatives, and the data, alternatives, and optimum solutions for...
1977-05-05
2007-01-02
2007-01-02
Interview with Glen Haven Postmistress Irma Sidwell about her experiences in the Big Thompson Canyon at Glen Haven during the 1976 Big Thompson flood and its aftermath. Credit: Oral History Transcripts - Big Thompson Canyon Collection (MSS #3003),...
1976-05-05
2007-01-02
2007-01-02
Images of flood destruction near Drake, Colorado. Images 2 and 3, "Park near Glen Haven," images 4 and 20, "Montrose," image 6, "Rd 2 Drk fr GH," image 8, "Drake," image 9, "Dam Store," images 11 and 12, "Siphon," images 13, 14, and 17, "Narrows,"...
1976-08-01
2007-01-03
2007-01-03
Interviews with canyon residents Roberta Olmstead and Joe Creek (?) about rebuilding after the Big Thompson flood and whether or not they have received monetary aid, and recording of a public meeting on whether or not to rebuild Highway 34....
1976-08-31
2016-06-14
2016-06-14
Jim Lloyd interviewed by David McComb on October 8, 1976
1976-05-05
2007-01-02
2007-01-02
Robert Ault interviewed by David McComb on September 8, 1976
1976-05-05
2007-01-02
2007-01-02
Images are aerial photographs of the Big Thompson River watershed. Beginning at Glen Haven, images follow the North Fork Big Thompson River southeast to its confluence with the Big Thompson River at Drake.
1976-08-01
2007-01-02
2016-02-26
2007-01-02
2016-02-26
Final report for the 2013 Northern Colorado Flood Oral History Project
2024-05-05
2015-09-29
2015-09-29
The collection consists of correspondence and reports concerning the Colorado River and flooding in the Imperial Valley, the Hetch Hetchy Project, Los Angeles water supply, the Southern Sierra Power Company, the salinity of San Francisco Bay and...

This collection consists chiefly of reports, handwritten notes and typewritten correspondence written and gathered by John S. Longwell. Although a few papers are from his early work (1910-1920) with the U. S. Reclamation Service, the main body...

Four black and white photographs affixed to a poster board depict flood waters and damage. Caption for upper two photographs reads, "Flood, March 1938, San Antonio Canyon, Claremont, California." Caption for lower left photograph reads, "Flood,...
1938-03-01
Seven black and white photographs affixed to a poster board depict flood waters and damage. Caption for all photographs reads, "Scripps College campus, Flood, March 1938, Claremont, California." Includes six exterior views and one interior view.
1938-03-01
A pamphlet printed June 19, 1931 for use at exhibits, meetings, and general distribution regarding the Colorado River Aqueduct and the Boulder Canyon Dam.
1931-06-19
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