POOL STAGE FREQUENCIES BLACK ROCK DAM Branch Brook, Connecticut (1955, 1971-2001) (D.A. = 20.4 square miles) |
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FREQUENCY |
Pool Stage |
STORAGE |
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(yr) 2 5 10 20 50 100 500
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(ft) 61.0 73.0 83.0 92.0 103.0 110.0 112.5
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(acre-feet) 1,710 2,895 4,115 5,390 7,180 8,450 8,900
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(inches) 1.6 2.7 3.8 5.0 6.6 7.8 8.2
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(percent full) 20 34 49 64 85 100 100+
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Permanent Pool Level = 27 ft. Spillway Crest = 110.0 ft. Gate Invert = 410.0 ft-NGVD |