POOL STAGE FREQUENCIES

NORTH SPRINGFIELD LAKE 

Black River, Vermont

 (D.A. = 158 square miles)

(1936, 1962 - 1997)

FREQUENCY

POOL STAGE

STORAGE

(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