Fort Shaw Diversion Dam and Canal

Overview
The Fort Shaw Canal inlet is on the main channel of the Sun River immediately upstream from the Fort Shaw Diversion Dam. The flow into the canal is regulated by a concrete headworks. The canal has a capacity of 225 cubic feet per second and is 12.1 miles long. It includes a monolithic siphon over Simms Creek and several drops and control structures. This canal supplies water for the entire Fort Shaw Division through approximately 85 miles of laterals.

General
RegionFacilities in Great Plains | Great Plains Home Page
StateMontana
CountyLewis and Clark
ProjectSun River
Dam Type Rockfill overflow section
Reservoir
WatercourseSun River
Location On the Sun River, 12 miles upstream of Fort Shaw, Montana, 40 miles downstream from Sun River Diversion Dam.
Longitude-111.7661
Latitude47.5309
Original Construction1908
Modified Construction
National ID Number
Hydrologic Unit Code

Dimensions
Structural Height9.00 ft
Hydraulic Height (Normal Operating Depth at Dam)9.00 ft
Top Parapet (Elevation)
Spillway Crest Elevation
Crest Elevation
Crest Length400.00 ft
Crest Width
Base Width
Volume of Dam Construction Materials 3,000.00 cu yds
Streambed at Dam Axis
Top of Exclusive Flood Control Pool (Elevation)
Top of Joint Use Pool (Elevation)
Top of Active Conservation Pool (Elevation)
Top of Inactive Conservation Pool (Elevation)
Top of Dead Storage Pool (Elevation)

Hydraulics & Hydrology
Volume
Total Water Storage at Elevation
Maximum Water Surface Elevation
Normal Water Surface Elevation
Spillway Type
Auxiliary Spillway
Spillway Capacity at Elevation
Auxiliary Spillway Capacity at Elevation
Uncontrolled Spillway Capacity at Elevation
Outlet Works Capacity at Elevation
Diversion Capacity at Elevation
Drainage Area
Hydrometeorological Report (HMR)
Probable Maximum Flood (PMF) Report

Contact Information
Owner
TitleArea Manager
OrganizationMontana Area Office
AddressP.O. Box 30137
CityBillings, MT 59107-0137
Phone (Fax)406 247-7338
Phone (Office)406 247-7300
Operator
TitleArea Manager
OrganizationMontana Area Office
AddressP.O. Box 30137
CityBillings, MT 59107-0137
Phone (Fax)406 247-7338
Phone (Office)406 247-7300


Last updated: Mar 29, 2013