Case Studies

Fontenelle Dam (Wyoming, 1965)

Fontenelle Dam is located on the Green River near La Barge, Wyoming and was originally built in 1964 to provide irrigation water and hydropower for a region of southwest Wyoming. The earthfill embankment structure…
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Fort Peck Dam (Montana, 1938)

Beginning at about 1:15 pm on September 22, 1938, the upstream slope of the dam adjacent to the right abutment experienced a large failure as the construction work had progressed to within 20 feet of the final dam crest elevation. One hundred eighty men were working in the area.
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Front Range Flood (Colorado, 2013)

The September 2013 rainfall that occurred on the Front Range of Colorado was the result of an unusual, late season storm event where warm moisture and upslope winds allowed this regional storm to dump up to 17 inches of rain over a seven day period.
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Kelly Barnes Dam (Georgia, 1977)

Kelly Barnes Dam was located approximately a half mile upstream (north) of Toccoa Falls Bible College in Stephens County, Georgia. Toccoa Falls, a 186-foot-high waterfall, was located between the dam and the college. The dam site was originally the location…
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Kinugawa Levee at Joso (Japan, 2015)

Beginning around September 6, 2015, Tropical Storm Etau together with Tropical Depression Kilo began dropping excessive rainfall across northeast Japan. The interaction of the two systems caused them to stall and concentrate rainfall in a narrow band over the Kinugawa watershed.
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Lake Delhi Dam (Iowa, 2010)

Lake Delhi Dam was originally constructed by the Interstate Power Company between 1922 and 1929 for hydroelectric power generation. The dam is located in Iowa approximately 1.4 miles south of Delhi on the Maquoketa River and impounds the nine-mile-long Lake Delhi. Reaching a maximum height…
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Laurel Run Dam (Pennsylvania, 1977)

Constructed between 1915 and 1918, Laurel Run Dam was a rockfill dam erected across Laurel Run near Johnstown, Pennsylvania. It was built to replace a smaller dam in order to provide water for drinking and industrial needs…
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Lawn Lake Dam (Colorado, 1982)

Lawn Lake Dam was located in Rocky Mountain National Park upstream of Estes Park, Colorado. It was an embankment dam and constructed in 1903 and owned by an irrigation company.  It fell within the National Park Boundary…
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Lower San Fernando Dam (California, 1971)

The Lower San Fernando Dam (LSFD) was built by the Los Angeles Bureau of Water Works and Supply (predecessor of Los Angeles Department of Water and Power (LADWP)) as part of the terminal storage system for the Los Angeles Aqueduct that included the adjacent Upper San Fernando Dam and several other dams in southern California.
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Machhu Dam II (Gujarat, India, 1979)

On August 10, 1979, monsoon storms poured over Gujarat, India. Monsoon rainstorms were not uncommon in this part of India, but as the storm increased it was clear this was larger than the usual storm. Flow began to increase down the Machhu river, first hitting Machhu Dam I and then turning downstream to Machhu Dam II…
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