POOL STAGE FREQUENCIES NORTH SPRINGFIELD LAKE Black River, Vermont (D.A. = 158 square miles) (1936, 1962 - 1997) |
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FREQUENCY |
POOL STAGE |
STORAGE |
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(yr) 2 5 10 20 50 100 200
|
(ft) 43.5 59.0 68.0 76.0 86.5 93.5 96.0 |
(acre-feet) 9,000 17,700 25,000 31,550 41,750 50,000 52,600
|
(inches) 1.1 2.1 3.0 3.7 5.0 5.9 6.2
|
(percent full) 18 35 50 63 83 100 100+ |
NORMAL POOL LEVEL = 15.0 ft. SPILLWAY CREST = 93.5 ft. GATE INVERT = 452.0 ft-NGVD |