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Background Information
Section 5103 of the 2007 Water Resources Development Act authorized the rehabilitation of the St. Mary Diversion and Conveyance Works. The $153 million authorized have not yet been appropriated.
Lifeline of the Hi-Line (pdf) The U.S. Bureau of Reclamation’s (USBR) St. Mary Facilities of the Milk River Project are in urgent need of rehabilitation. The St. Mary Facilities, located on the Blackfeet Reservation in Glacier County, consists of a storage dam (Sherburne Dam), diversion dam, head gate, 29 miles of canal, two sets of steel siphons, and 5 concrete drop structures. This system, which brings water from the St. Mary River Basin to the Milk River Basin, has been in operation for over 85 years with only minor repairs and improvements since its original construction…
