Data is updated every year about October/November time period



Knightville Dam, Westfield River
Peak Pool Levels
by Water Year
(1943 - Present)
Drainage Area:  162 sq. miles
Normal Pool:  0 ft. (Summer), 35 ft. (Winter)
Gate Invert Elev.:  480 ft. NGVD
1" Runoff =   8,640 ac-ft
Storage at Spillway Crest:   5.7 in. / 49,000 ac-ft



Date
Annual Peak
Pool Level (ft)
Storage Utilized
Inches Acre-Feet Percent
27 May 1943 73.0 1.3 10,900 22
26 Jun 1944 80.8 1.6 14,240 29
18 Jun 1945 78.0 1.5 12,998 27
10 Mar 1946 50.0 0.4 3,857 8
07 Apr 1947 67.0 1.0 8,685 18
24 Mar 1948 99.2 2.8 24,332 50
02 Jan 1949 130.2 SPILLWAY DISCHARGE
     
06 Apr 1950 59.0 0.7 6,179 13
04 Apr 1951 94.7 2.5 21,559 44
02 Jun 1952 86.8 2.0 17,173 35
30 Mar 1953 112.2 3.9 33,548 68
12 Sep 1954 66.9 1.0 8,652 18
22 Aug 1955 105.0 3.3 28,194 58
18 Oct 1955 127.8 5.4 46,897 96
25 Jan 1957 53.0 0.5 4,544 9
19 Apr 1958 67.2 1.0 8,752 18
05 Apr 1959 65.6 1.0 8,216 17
     
08 Apr 1960 107.0 3.4 29,621 60
26 Feb 1961 51.8 0.5 4,242 9
03 Apr 1962 79.7 1.6 13,735 28
03 Apr 1963 48.6 0.4 3,558 7
16 Apr 1964 42.0 0.2 1,840 4
04 Apr 1965 33.0 0.1 1,135 2
28 Dec 1965 41.0 0.2 2,146 4
04 Apr 1967 75.4 1.4 11,870 24
21 Mar 1968 75.7 1.4 11,992 24
24 Apr 1969 89.0 2.1 18,335 37
     
04 Apr 1970 65.0 0.9 8,015 16
29 Aug 1971 48.0 0.4 3,430 7
21 Apr 1972 69.4 1.1 9,537 19
02 Jul 1973 71.1 1.2 10,164 21
23 Dec 1973 83.9 1.8 15,693 32
27 Sep 1975 71.7 1.2 10,386 21
02 Apr 1976 76.2 1.4 12,201 25
15 Mar 1977 94.7 2.5 21,559 44
10 Jan 1978 71.8 1.2 10,423 21
08 Mar 1979 84.2 1.8 15,842 32
     
23 Mar 1980 96.6 2.6 22,697 46
25 Feb 1981 105.4 3.3 28,479 58
08 Jun 1982 90.8 2.2 19,322 39
26 Apr 1983 97.6 2.7 23,326 48
03 Jun 1984 129.0 5.6 48,040 98
29 Sep 1985 62.8 0.8 7,315 15
20 Mar 1986 75.8 1.4 12,032 25
06 Apr 1987 132.4 SPILLWAY DISCHARGE
28 Mar 1988 74.6 1.3 11,547 24
07 May 1989 57.4 0.7 5,720 12
     
21 Mar 1990 88.8 2.1 18,225 37
25 Oct 1990 61.4 0.8 6,890 14
28 Mar 1992 60.7 0.8 6,678 14
02 Apr 1993 94.6 2.5 21,501 44
19 Apr 1994 73.2 1.3 10,981 22
26 Dec 1994 61.9 0.8 7,042 14
19 Apr 1996 94.6 2.5 21,524 44
21 Oct 1996 75.5 1.4 11,911 24
04 Apr 1998 66.6 1.0 8,551 17
23 Mar 1999 79.0 1.6 13,449 27
     
08 Jun 2000 66.3 1.0 8,451 17
18 Dec 2000 64.3 0.9 7,777 16
30 Mar 2002 46.3 0.3 3,050 6
31 Mar 2003 63.3 0.9 7,467 15
02 Apr 2004 79.4 1.6 13,500 28
04 Apr 2005 97.7 2.7 23,400 48
10 Oct 2005 94.9 2.5 27,500 45
19 Apr 2007 111.4 3.8 32,932 67
10 Mar 2008 74.7 1.3 11,587 24
13 Dec 2008 61.3 0.8 6,869 14
     
31 Mar 2010 82.8 1.7 15,178 31
09 Sep 2011 105.8 3.3 28,770 59
01 Oct 2011 62.4 0.8 7,188 14
12 Jun 2013 66.2 1.0 8,430 17
01 Apr 2014 66.1 1.0 8,394 17
21 Apr 2015 65.0 0.9 8,015 17
26 Feb 2016 79.9 1.6 13,839 28
07 Apr 2017 61.0 1.0 6,766 13
14 Jan 2018 69.8 1.1 9,698 20
23 Dec 2018 70.9 1.2 10,090 21
     
16 Dec 2019 56.3 0.6 5,401 11
26 Dec 2020 67.8 1.0 8,966 18

Notes:
1.    Spillway Discharge