Storage Dams

1  

Diversion Dams

1  

Canals

93.5 mi  

Laterals

450 mi.  

Drains

232 mi.  

Type:

Concrete gravity ogee weir with flanking earth dikes

Location:

On Belle Fourche River, 1.5 miles northeast of Belle Fourche, South Dakota.

Year Completed:

1907  

Dimensions

   Structural height

36 ft  

   Hydraulic height

18 ft  

   Weir crest length

400 ft  

   Total length

2,523 ft  

   Weir crest elevation

2998.0 ft  

   Volume

35,700 yd³  

   Diversion capacity

1,300 cfs  

Sluice gates:

Three slide gates, each 5 by 10 ft

Outlet works:

Seven slide gates, each 5 by 10 ft.

   Capacity

3,150 cfs  

Location:

Belle Fourche Diversion Dam generally east to Belle Fourche Reservoir

Construction Period:

1905-1906  

Length

6.3 mi  

Diversion capacity

1,300 cfs  

Typical section in earth:

   Bottom width

40 ft  

   Side slopes

1:1  

   Water depth

10 ft  

Location:

From Belle Fourche Dam north about 5 mi, then generally southeast about 19 mi to vicinity of Newell, South Dakota.

Construction Period:

1908-1916  

Length

43 mi  

Initial capacity

600 cfs  

Typical section in earth:

   Bottom width

30 ft  

   Side slopes

2:1  

   Water depth

5 ft  

Location:

From Belle Fourche Reservoir generally southeast about 20 miles.

Construction Period:

1906-1910  

Length

44 mi  

Initial capacity

300 cfs  

Typical section in earth:

   Bottom width

18 ft  

   Side slopes

1.5:1  

   Water depth

5 ft