General

• Vicinity Map
• Region (Map) ....................... Great Plains
• State (Map) ............................... Nebraska
• County ........................................... Dawes
• Project .................................. Mirage Flats
• Dam type .................................. Diversion
• Location ........................ near Dunlap, NE
• Watercourse .............................. Niobrara
• Original Construction ...................... 1945
• National ID Number ........................... NA
• Hydrologic Unit Code ...................       

Dimensions

• Crest Elevation .............................. 3873.3 ft
• Structural Height ............................... 12.6 ft
• Hydraulic Height ..........................              ft
• Weir Crest Length ................................ 80 ft
• Crest Width ....................................            ft
• Base Width .....................................            ft
• Volume (earth) ................................ 5,100 cy
                (concrete) ......................... 1,300 cy

Hydraulics

• Spillway capacity at El. 3877......... 2,500 cfs
• Diversion capacity ........................     220 cfs

Headworks

• At the end of dam on centerline of Mirage Flats Canal.  Two 10 ft. square radial gates (one for sluiceway).