Dam

Type

Concrete-gravity and earthfill

Dimensions:

   Maximum height, feet

93

   Above Streambed

87

Length, feet:

   Powerhouse section

310

   Spillway section

291

   Lock Section             

168

   Earth Embankment

468

   Total Structures

1,306

Reservoir

Operating levels at dam:

   Maximum surcharge pool (area 13,920 acres)

508.0

Normal operation:

   Full pool (area 11,900 acres)

504.0

   Minimum pool (area 9,820 acres)

499.0

Length:

   Backwater to Celina, TN

67.3 miles

Shoreline length:          

   At 504.0

381 miles

Lock Dimensions:

   Chamber dimensions, feet

84 X 400

   Lift at normal pool, feet

53

   Minimum filling time

11 minutes 

   Gallons

17 million

Spillway:

   Net width opening, feet

225

   Discharge capacity, cubic feet per second

175,000

Crest Gates:

   Number and Type

5, Tainer

   Size, width and height, feet

45 X 41

Power Plant:

   Generator Capacity:   3 units @33,333 kW

100,000 kW

   Estimated average annual energy output, kW