Favorable weather for uninterrupted construction of the St Mary Siphon Replacement Project has enabled the completion of the project and the current diversion from the St Mary to the Milk River since July 1st 2025. A canal seepage issue was…
Monday July 14th update! Hello Everyone, on Friday night we were informed that the St Mary Canal just east of Spider Lake (just passed the St Mary Siphon) developed a large seep that was nearing failure. A quick shut down of…
We are nearing peek snow load for the season in the headwaters of the Milk and St Mary Basin, with conditions currently near 70% of average. This is similar to 2024 conditions and might be problematic for sustained late season…
Releases from Lake Sherburne and diversions to the St. Mary Canal are expected to start for the year on March 25, 2024. As in the past, St. Mary Canal diversions will start near 100 cfs and ramp up as ice…
A quick note regarding diversion operations and the projected shutdown/return to natural flow only on the Milk River: Thank you for following our water updates during the 2023 season, we will share any additional changes as we are made aware.…
There was an increased release from Lake Sherburne to 450 cfs and an increased diversion to the St. Mary Canal to 600 cfs.
Diversion from the St Mary to the Milk River is being decreased to 450cfs today. With the
addition of some natural flow, we should see stable flow on the Milk River around 15m/3.
The Cold spring and heavy low elevation snow in the headwaters and St Mary Diversion near Babb MT had delayed the diversion start up to the North Fork Montana. USBR crews spent nearly 2 weeks digging out miles of canal system for the anticipated season startup. From April 5th to April 11th the USBR was able to trickle approximately 50cfs into the system, but a turnout gate was damaged by ice above drop structure 5 requiring dewatering and repair. Repairs are now nearing completion.