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These floods were the result of periodic sudden ruptures of the ice dam on the Clark Fork River that created Glacial Lake Missoula. After each ice dam rupture, the waters of the lake would rush down the Clark Fork and the Columbia River, flooding much of eastern Washington and the Willamette Valley in western Oregon. After the lake drained, the ...
The first Hauser Dam was built by the Missouri River Power Company and its successor, the United Missouri River Power Company. Samuel Thomas Hauser, a former Territorial Governor of Montana from 1885 to 1887, enjoyed a lengthy career in banking, mining, railroads, ranching, and smelting, but encountered a series of financial setbacks after the Panic of 1893 which nearly ruined him financially.
The Fort Peck Dam is also featured in Ivan Doig’s novel, The Bartender’s Tale. Fifty Cents an Hour: The Builders and Boomtowns of the Fort Peck Dam, by Montana author Lois Lonnquist, published in 2006, is an overall history of the Fort Peck dam and spillway construction. Built by the Army Corps of Engineers, PWA Project #30 provided ...
Formed during the outflow of water during a break in the ice dam. [11] The Camas Prairie Basin filled when Lake Missoula reached 2,770 feet (840 m) asl. As the water in the Lake Missoula Basin rose, this basin gained a second outlet through Rainbow Lake at 3,588 feet (1,094 m) asl; Willis Gulch 3,349 feet (1,021 m) asl; Markle Pass 3,352 feet ...
In June 2022, the U.S. state of Montana was hit by heavy, damaging floods in multiple major watersheds including the Yellowstone River. [1] Heavy rain and melting snow over the weekend June 10–13 caused large areas of Yellowstone National Park to be evacuated. [2]
The Cordilleran ice sheet also blocked the Clark Fork River and created Glacial Lake Missoula, rising behind a 2,000 feet (610 m) high ice dam in flooded valleys of western Montana. Over 2000 years the ice dam periodically failed, releasing approximately 40 high-volume Missoula Floods of water down the Columbia River drainage, passing through ...
Swift Dam (National Inventory of Dams ID MT00581) is a dam in Pondera County, Montana, United States, on the southern end of the Blackfeet Indian Reservation. The dam at was originally constructed around 1910, with a height of 157 feet (48 m). [1] The embankment structure gave way on June 10, 1964, after heavy rains caused flooding on Birch Creek.
In 2003 the State of Montana, through its Natural Resource Damage Program, drafted a conceptual plan for the restoration of the Milltown Dam site. [8] In December 2004, the final remediation plan was released by the EPA, calling for the removal of more than two million cubic yards of contaminated sediment and the removal of the Milltown Dam. [9]