Data is updated every year about October/November time period



Otter Brook Dam, Otter Brook
Peak Pool Levels
by Water Year
(1958 - Present)
Drainage Area:  47 sq. miles
Normal Pool:  20 ft. (Summer), 21 ft. (Winter)
Gate Invert Elev.:  683 ft. NGVD
1" Runoff =   2,507 ac-ft
Storage at Spillway Crest:   7.0 in. / 17,600 ac-ft



Date
Annual Peak
Pool Level (ft)
Storage Utilized
Inches Acre-Feet Percent
01 May 1958 66.3 3.1 7,864 45
12 Apr 1959 65.0 3.0 7,545 43
     
07 Apr 1960 81.8 4.8 12,120 69
28 Apr 1961 30.5 0.5 1,140 6
11 Apr 1962 56.9 2.3 5,694 32
06 Apr 1963 43.4 1.2 3,035 17
18 Apr 1964 43.0 1.2 2,965 17
17 Apr 1965 22.2 0.1 327 2
27 Mar 1966 33.2 0.6 1,476 8
05 Apr 1967 43.8 1.2 3,105 18
26 Mar 1968 65.3 3.0 7,619 43
25 Apr 1969 82.6 4.9 12,360 70
     
05 Apr 1970 35.0 0.7 1,715 10
19 Apr 1971 27.5 0.3 820 5
25 Apr 1972 52.4 1.9 4,742 27
02 Jul 1973 40.0 1.0 2,460 14
24 Dec 1973 53.5 2.0 4,968 28
21 Apr 1975 32.0 0.5 1,260 7
30 Jan 1976 40.7 1.0 2,576 15
18 Mar 1977 61.9 2.7 6,807 39
10 Jan 1978 39.5 1.0 2,382 14
12 Mar 1979 63.4 2.9 7,159 41
     
24 Mar 1980 40.8 1.0 2,592 15
27 Feb 1981 36.9 0.8 1,985 11
21 Apr 1982 56.5 2.2 5,608 32
22 Mar 1983 44.0 1.3 3,140 18
05 Jun 1984 88.7 5.7 14,290 81
14 Mar 1985 31.7 0.5 1,284 7
21 Mar 1986 55.2 2.1 5,328 30
08 Apr 1987 99.4 SPILLWAY DISCHARGE
29 Mar 1988 44.1 1.3 3,158 18
08 Apr 1989 41.0 1.0 2,625 15
     
22 Mar 1990 57.2 2.3 5,758 33
26 Dec 1990 32.1 0.5 1,333 8
25 Nov 1991 30.5 0.5 1,140 6
19 Apr 1993 59.6 2.5 6,282 36
17 Apr 1994 54.3 2.0 5,134 29
27 Dec 1994 39.8 1.0 2,429 14
29 Jan 1996 49.0 1.6 4,059 23
03 Dec 1996 36.7 0.8 1,962 11
04 Apr 1998 50.6 1.7 4,386 25
18 Sep 1999 33.6 0.6 1,524 9
     
29 Feb 2000 27.7 0.3 844 5
26 Apr 2001 74.6 4.0 10,051 57
02 Apr 2002 32.0 0.5 1,330 8
01 Apr 2003 55.1 2.1 5,302 30
04 Apr 2004 55.3 2.1 5,310 30
05 Apr 2005 58.1 2.4 5,930 34
17 Oct 2005 85.1 5.2 13,000 75
22 Apr 2007 67.5 3.3 8,158 46
13 Apr 2008 45.6 1.4 3,428 20
31 Mar 2009 30.8 0.5 1,172 7
     
02 Apr 2010 69.7 3.5 8,713 50
12 Mar 2011 54.2 2.0 5,100 29
31 May 2012 51.4 1.8 4,548 25
01 Nov 2012 34.2 0.6 1,608 9
17 Jul 2014 37.3 0.8 2,039 12
15 Apr 2015 35.3 0.7 1,757 10
26 Feb 2016 38.5 0.9 2,235 13
27 Feb 2017 40.0 1.0 2,460 14
16 Jan 2018 56.0 2.2 5,508 31
07 Nov 2018 46.4 1.4 3,572 20
     
16 Dec 2019 33.4 0.6 1,498 9
22 Jul 2021 57.5 2.3 5,823 33

Notes:
1.    Spillway Discharge