POOL STAGE FREQUENCIES

NORTH HARTLAND DAM  

Ottauquechee River, Vermont

 (D.A. = 220 square miles)

(1936, 1962 - 2002)

FREQUENCY

POOL STAGE

STORAGE

(yr)

  2

  5

 10

 20

 50

100

200

 

(ft)

68.0

94.0

110.0

126.0

143.0

156.5

158.0

(acre-feet)

10,200

22,000

30,750

41,000

55,000

58,750

69,800

 

(inches)

0.9

1.9

2.6

3.5

4.7

5.9

6.0

 

(percent full)

 15

 33

 45

 60

 80

100

100+

     NORMAL POOL LEVEL = 35.0 ft.

     SPILLWAY CREST = 156.5 ft.

     GATE INVERT =  390.0 ft-NGVD