Amends the Reclamation Safety of Dams Act of 1978 to authorize the Secretary of the Interior to replace or remove (currently only to modify) Bureau of Reclamation dams and related facilities as determined necessary. Increases the authorized appropriations to carry out such Act after October 1, 1983.
States that the Secretary may obligate construction funds for dam safety earlier than the required 60-day waiting period after notifying Congress, when the appropriate congressional committees approve such earlier date.
Includes within the scope of the Reclamation Safety of Dams Act of 1978: (1) Fish Lake, Four Mile, Ochoco, Savage Rapids Diversion and Warm Springs Dams, Oregon; (2) Como Dam, Montana; (3) Little Wood River Dam, Idaho; (4) Twin Buttes Dam, Texas; and (5) Foss Dam, Oklahoma. Makes specified costs of the Twin Buttes Dam and Foss Dam nonreimbursable and nonreturnable under Federal reclamation laws.