Como Dam (National ID # MT00564) is a dam in Ravalli County, Montana, in the far western part of the state.
Como Dam was originally constructed by local farmers around 1910, to impound a natural lake for irrigation storage; the United States Bureau of Reclamation enhanced and stabilized that structure in 1954, in 1976, and in 1992-1993. The dam is 85 feet high, with a length of 2550 feet at its crest. As part of the larger Bitter Root Project, the dam and reservoir are both owned by the local Bitter Root Project Irrigation District.
The reservoir it creates, Lake Como, has a water surface of 1.4 square miles and normal storage of 38,495 acre-feet. Recreation includes fishing, camping, hunting, etc. The site is surrounded by the Bitterroot National Forest.
There is no Early Warning System on this dam which, if inundated at night could cause catastrophic loss of life in the Bitterroot Valley.