General

• Vicinity Map
• Region (Map) ....................... Great Plains
• State (Map) ............................... Montana
• County ............................................ Valley
• Project ...................................... Milk River
• Dam type .................................. Diversion
• Location ........... 3 mi W of Vandalia, MT
• Watercourse ........................... Milk River
• Original Construction ...................... 1917
• National ID Number ................ MT00584
• Hydrologic Unit Code ...................      

Dimensions

• Crest Elevation .............................. 2134.0 ft
• Weir Crest Elevation .................... 2116.0 ft
• Structural Height ................................. 32 ft
• Hydraulic Height ................................. 27 ft
• Weir Crest Length ............................. 300 ft
• Total Crest Length ......................... 2,350 ft
• Crest Width ........................................... NA
• Base Width ............................................ NA
• Volume .......................................... 15,200 cy

Hydraulics

• Service Spillway capacity
•   at El. 2127.5 ............................ 30,000 cfs
• Auxiliary Spillway capacity
•   at El. 2127.5 ............................. 40,000 cfs
• Diversion capacity ....................... 300 cfs

Headworks

• Vandalia South Canal:  Four 4- by 5-foot cast iron slide gates.
• Service Spillway:  15 radial gates.
• Sluiceway:  Three 4- by 4-foot cast iron slide gates.