POOL STAGE FREQUENCIES

FRANKLIN FALLS DAM

Pemigewasset River, New Hampshire

(D.A. = 1,000 square miles) 

(1936, 1944-1997)

FREQUENCY

ELEVATION

STORAGE

(yr)

  2

  5

 10

 20

 50

100

200

 

(ft-NGVD)

328.7

345.0

356.0

367.0

381.0

392.5

397.0

 

(acre-feet)

 20,800

 44,900

 70,500

 92,600

130,000

160,300

172,500

 

(inches)

0.4

0.8

1.3

1.7

2.4

3.0

3.2

 

(percent full)

14

30

47

61

86

100+

100+

 

   Permanent Pool Level  = 307 + ft-NGVD

   Spillway Crest  =  389.0 ft-NGVD  

   Gate Invert  =  300.0 ft-NGVD