Irrigation & Infrastructure

The program organizes, plans and executes rehabilitation and restoration of various elements of the Flathead Indian Irrigation Project with the goal of making the project more efficient with modernized control systems.
Extensive planning is underway to rehabilitation and betterment of the Mission Valley irrigation program. The current focus is the Jocko Valley area. Please check back for updates on public events.
Related documents
Irrigation & Infrastructure projects

Under way, 2025 to 2027
Jocko Valley Canal-to-Pipeline Conversion
Jocko Valley, east of Highway 93 near Arlee
Converting aging open canals to buried pipelines to improve delivery efficiency, reduce water loss and modernize irrigation.

Under way, 2025
North Fork Jocko Tabor Diversion
North Fork Jocko River, below North Fork Jocko Falls
A new rock ramp fishway, fish screen and diversion structure that improve fish passage while keeping irrigation deliveries reliable.

Under way, 2026
Lower Jocko J Diversion
Lower Jocko River, near Ravalli
A rock ramp diversion, new fish screen and 48-inch pipeline that improve fish passage and end entrainment at the Lower Jocko J Canal.

Under way, 2026
Crow Pump Diversion Reconstruction
Crow Creek, Charlo irrigation service area
Rebuilding the diversion that lifts Crow Creek water into the Crow Pump Canal, with better fish passage and less water lost.

Planning and design, 2027
Upper S Fish Ladder
Jocko River
Modernizing the facility with volitional fish passage and sediment transport features while continuing to deliver irrigation water.

Planning and design, Design to be scheduled
Charlo Irrigation Modernization
Charlo
An Integrated Water Management Plan to modernize irrigation serving the Charlo area and deliver the instream flows the Compact requires.

Completed, 2024
Jocko K Diversion
Jocko River, east of Arlee
A modern diversion with a fish ladder and fish screen replaced a structure that endangered operators and wasted irrigation water.
Completed, 2025
Pablo 31A Chute Replacement
Near Pablo
A buried 36-inch steel pipe replaced an aging 626-foot concrete chute, improving operator safety and stopping seepage.

Completed, 2025
Falls Creek Diversion Replacement
Falls Creek, Tabor Feeder Canal
New trash rack, gates and flow measurement for a highly degraded diversion on a major tributary of the North Fork Jocko.