POOL STAGE FREQUENCIES

COLEBROOK RIVER DAM

West Br. Farmington River, Connecticut

(1955, 1970-2002)

(D.A. = 118 square miles) 

FREQUENCY

POOL

ELEVATION

STORAGE

(yr)

  2

  5

 10

 50

100

200

(ft-NGVD)

722.0

732.0

739.0

753.0

759.5

764.5

(acre-feet)

 11,220

 20,130

 26,890

41,220

45,600

46,840

 

(inches)

1.8

3.2

4.3

6.5

7.2

7.4

(percent full)

 22

 40

 54

 81

 98

100+

    Bottom of Flood Control Pool  =  708.0 ft-NGVD 

 Spillway Crest  =  761.1 ft-NGVD

 Gate Invert  =   575.0 ft-NGVD