Swift Dam () is a dam in

Pondera County, Montana Pondera County ( ) is a County (United States), county in the U.S. state of Montana. As of the 2020 United States census, 2020 census, the population was 5,898. Its county seat is Conrad, Montana, Conrad. Geography According to the United State ...

, United States, on the southern end of the Blackfeet Indian Reservation. The dam at was originally constructed around 1910, with a height of . The embankment structure gave way on June 10, 1964, after heavy rains caused flooding on Birch Creek. The dam collapsed and sent a wall of water down the creek bed. The nearby dam at

Lower Two Medicine Lake Lower Two Medicine Lake is located partly in Glacier National Park as well as on the Blackfeet Indian Reservation, in the U. S. state of Montana. The lake is natural but has a small dam which regulates the lake level and reduces the potential for ...

also failed, and at least 28 people were killed. The current concrete-arch structure was completed in 1967, with a height of , and a length at its crest of .http://ce-npdp-serv2.stanford.edu/DamDirectory/DamDetail.jsp?npdp_id=MT00581 The reservoir is also contained by a secondary earthen dike () with a height of and a length of , also completed in 1967. The dams and reservoir are owned and operated by the local Pondera Canal & Reservoir Company. The reservoir, Swift Reservoir, has a maximum storage capacity of , normal storage of , and a normal elevation of . Recreation is restricted to hiking in the area, with a parking area that requires Blackfeet Nation permission.

References

{{Authority control Dams in Montana Reservoirs in Montana United States privately owned dams Dam failures in the United States Dams completed in 1967 Buildings and structures in Pondera County, Montana Arch dams Landforms of Pondera County, Montana