Data is updated every year about October/November time period



Franklin Falls Dam, Pemigewasset River
Peak Pool Levels
by Water Year
(1943 - Present)
Drainage Area:  1000 sq. miles
Normal Pool:  307 ft. NGVD
Gate Invert Elev.:  300 ft. NGVD
1" Runoff =   53,333 ac-ft
Storage at Spillway Crest:   2.8 in. / 150,600 ac-ft



Date
Annual Peak
Pool Level (ft)
Storage Utilized
Inches Acre-Feet Percent
1943        
10 Nov 1943 339.5 0.7 34,800 23
04 Apr 1945 330.1 0.4 19,940 13
24 May 1946 320.9 0.2 9,310 6
13 Apr 1947 328.1 0.3 17,230 11
02 Apr 1948 327.5 0.3 16,450 11
01 Jan 1949 327.7 0.3 16,710 11
     
22 Apr 1950 335.5 0.5 28,000 18
04 Apr 1951 331.4 0.4 21,760 14
02 Jun 1952 331.3 0.4 21,620 14
29 Mar 1953 375.7 2.1 113,650 74
13 Sep 1954 330.8 0.4 20,920 14
16 Apr 1955 323.0 0.2 11,200 7
14 Jan 1956 331.8 0.4 22,320 14
22 Apr 1957 314.0 0.1 4,100 3
22 Dec 1957 338.6 0.6 33,220 22
05 Apr 1959 322.0 0.2 10,300 7
     
26 Oct 1959 355.7 1.3 66,940 43
24 Apr 1961 319.0 0.1 7,700 5
09 Apr 1962 327.8 0.3 16,840 11
08 Oct 1962 330.0 0.4 19,800 13
16 Apr 1964 330.8 0.4 20,920 14
17 Apr 1965 315.1 0.1 4,770 3
29 Mar 1966 319.0 0.2 7,700 6
04 Apr 1967 325.3 0.3 13,660 9
26 Apr 1968 329.0 0.3 18,400 12
20 Apr 1969 349.1 1.0 53,100 34
     
25 Apr 1970 323.0 0.2 11,200 7
05 May 1971 325.0 0.2 13,300 9
05 May 1972 324.0 0.2 12,200 8
06 Jul 1973 369.8 1.9 99,320 64
22 Dec 1973 347.9 1.0 50,700 33
21 Mar 1975 320.5 0.2 8,950 6
03 Apr 1976 335.6 0.5 28,160 18
16 Mar 1977 340.1 0.7 35,870 23
12 Jan 1978 320.0 0.2 8,500 6
29 Mar 1979 330.4 0.4 20,360 13
     
11 Apr 1980 329.9 0.4 19,660 13
22 Feb 1981 340.0 0.7 35,700 23
22 Apr 1982 331.6 0.4 22,040 14
27 Apr 1983 331.3 0.4 21,620 14
04 Jun 1984 373.6 2.0 108,440 70
14 Mar 1985 314.7 0.1 4,520 3
29 Jan 1986 344.0 0.8 43,000 28
03 Apr 1987 375.4 2.1 112,900 73
30 Apr 1988 333.2 0.5 24,400 16
08 May 1989 329.3 0.4 18,820 12
     
13 Aug 1990 332.6 0.4 23,500 15
25 Dec 1990 326.9 0.3 15,670 10
13 Mar 1992 321.7 0.2 10,030 7
19 Apr 1993 330.1 0.4 19,940 13
18 Apr 1994 332.8 0.4 23,800 15
18 Jan 1995 319.5 0.2 8,100 6
25 Apr 1996 340.4 0.7 36,380 24
21 Apr 1997 333.5 0.5 24,850 16
18 Jun 1998 349.7 1.0 54,300 35
19 Sep 1999 334.9 0.5 27,040 18
     
11 Apr 2000 340.5 0.7 36,533 24
19 Dec 2000 333.8 0.5 25,285 16
15 Apr 2002 333.3 0.5 24,550 16
31 Mar 2003 324.7 0.2 12,959 8
19 Dec 2003 331.7 0.4 22,166 14
05 Apr 2005 336.9 0.6 29,500 20
18 May 2006 359.2 1.4 74,618 50
20 Apr 2007 339.6 0.7 34,980 23
01 May 2008 337.7 0.6 31,605 21
13 Dec 2008 326.2 0.3 14,695 10
     
31 Mar 2010 325.9 0.3 14,447 10
30 Aug 2011 351.3 1.1 57,695 38
10 May 2012 322.4 0.2 10,709 7
01 Nov 2012 326.0 0.3 14,454 10
17 Apr 2014 344.0 0.8 42,981 29
22 Apr 2015 320.8 0.2 9,229 6
26 Feb 2016 326.8 0.3 15,540 10
03 Jul 2017 334.6 0.5 26,528 18
01 Nov 2017 348.6 1.0 52,160 35
23 Apr 2019 349.4 1.0 53,700 36
     
15 Apr 2020 335.9 0.5 28,576 19
27 Dec 2020 337.3 0.6 30,961 21