Data is updated every year about October/November time period



West Thompson Dam, Quinebaug River
Peak Project Releases
by Water Year
(1967 - Present)
Drainage Area (gross):  172 sq. miles
Drainage Area (net):  74 sq. miles
Normal Pool:  15 ft.
Gate Invert Elev.:  292 ft. NGVD
1" Runoff =   3,947 ac-ft
Storage at Spillway Crest:   6.5 in. / 25,600 ac-ft


Date Annual Peak
Release (cfs)
06 Apr 1967 1,360
28 Mar 1968 2,010
28 Mar 1969 1,510
  
06 Apr 1970 1,480
07 Mar 1971 850
30 Mar 1972 2,010
06 Feb 1973 2,040
22 Mar 1974 2,070
21 Mar 1975 1,770
20 Oct 1975 2,630
16 Mar 1977 2,120
31 Jan 1978 2,320
29 Jan 1979 2,690
  
27 Mar 1980 1,970
01 Mar 1981 2,220
10 Jun 1982 2,270
27 Apr 1983 2,010
08 Jun 1984 2,570
14 Mar 1985 615
29 Jan 1986 2,170
10 Apr 1987 2,820
28 Mar 1988 1,210
14 Aug 1989 2,320
  
25 Oct 1989 2,105
23 Aug 1991 1,620
29 Nov 1991 1,378
04 Apr 1993 2,070
30 Mar 1994 1,885
10 Mar 1995 1,074
01 Feb 1996 2,379
20 Dec 1996 2,026
12 Mar 1998 2,348
25 Jan 1999 2,034
  
23 Apr 2000 1,882
24 Mar 2001 2,020
14 May 2002 1,190
24 Mar 2003 1,916
19 Dec 2003 1,999
05 Apr 2005 2,207
21 Oct 2005 2,450
18 Apr 2007 2,416
20 Feb 2008 2,526
15 Dec 2008 2,230
  
02 Apr 2010 2,334
10 Mar 2011 2,304
09 Dec 2011 1,985
12 Jun 2013 2,185
02 Apr 2014 2,207
06 Apr 2015 1,553
26 Feb 2016 1,270
07 Apr 2017 1,990
18 Apr 2018 1,782
25 Jan 2019 1,785
  
16 Dec 2019 1,726
28 Dec 2020 2,190