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Statistical Information
Operating
Levels at Dam:
|
|
Maximum surcharge pool
|
area: 27,450
acres El.450
|
Normal
Operation:
|
|
Full pool
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area: 22,500
acres El.445
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Minimum pool
|
area: 19,550
acres El.442
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Length
(backwater to Cordell Hull L & D) |
97.3
miles |
Shoreline,
length at El. 445 |
440
miles |
Storage
(flat pool assumption), acre-feet:
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Surcharge flood storage (El. 450-445)
|
125,000 |
Pondage allowance for power (El. 445-442) |
63,000
|
Permanent pool (below El. 442) |
357,000
|
Total volume at El. 450 |
545,000
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|
LOCK |
|
Clear chamber dimensions, feet |
84 by 400
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Water depth over sills at normal pool levels, feet
|
17.0 upper; 13.0 lower |
Lift at normal pool levels, feet |
60
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Minimum lock filling time at normal head, minutes |
12.6
|
|
|
DAM |
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Type |
Concrete-gravity and earth fill
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Maximum height, feet |
98
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Length,
feet:
|
|
Powerhouse section |
380
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Spillway section |
355 |
Navigation
lock (top width) |
145
|
Earth embankment |
2,870
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Total, structures |
3,750
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Spillway:
|
|
Net width opening, feet |
270
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Discharge capacity, cubic feet per second |
236,000
|
Crest
gates:
|
|
Number and type |
6,tainter
|
Size, width and height, feet |
45 by 41
|
Volume
content, cubic yards (approx.) :
|
|
Concrete structures |
351,000 |
Embankment section |
440,000 |
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