Data is updated every year about October/November time period



North Hartland Dam, Ottauquechee River
Peak Project Releases
by Water Year
(1962 - Present)
Drainage Area:  220 sq. miles
Normal Pool:  35 ft.
Gate Invert Elev.:  390 ft. NGVD
1" Runoff =   11,733 ac-ft
Storage at Spillway Crest:   5.9 in. / 68,750 ac-ft


Date Annual Peak
Release (cfs)
11 Apr 1962 5,440
03 Apr 1963 3,540
14 Apr 1964 4,260
16 Apr 1965 1,830
25 Mar 1966 2,650
05 Apr 1967 3,050
23 Mar 1968 2,950
26 Apr 1969 5,930
  
30 Apr 1970 3,900
21 Apr 1971 3,540
01 May 1972 4,080
20 Mar 1973 5,010
28 Dec 1973 3,930
20 Apr 1975 3,860
06 Apr 1976 4,640
17 Mar 1977 6,170
18 Oct 1977 4,080
26 Mar 1979 5,170
  
14 Apr 1980 2,730
23 Feb 1981 4,520
18 Apr 1982 5,410
27 Apr 1983 4,910
09 Jun 1984 5,600
30 Dec 1984 3,590
20 Mar 1986 4,590
10 Apr 1987 6,080
09 Oct 1987 4,350
29 Mar 1989 3,170
  
23 Oct 1989 4,450
24 Oct 1990 3,720
06 Mar 1992 4,770
20 Apr 1993 5,030
18 Apr 1994 4,350
18 Jan 1995 3,423
26 Jan 1996 3,606
22 Oct 1996 3,649
06 Apr 1998 5,732
02 Apr 1999 3,709
  
05 Apr 2000 3,969
27 Apr 2001 4,522
01 Apr 2002 3,409
16 Apr 2003 3,472
24 May 2004 3,484
08 Apr 2005 4,100
16 May 2006 4,320
24 Apr 2007 4,060
14 Apr 2008 4,520
04 Apr 2009 3,560
  
02 Apr 2010 3,290
31 Aug 2011 4,430
23 Apr 2012 3,580
10 Apr 2013 3,510
14 Apr 2014 3,870
15 Apr 2015 4,190
26 Feb 2016 4,150
13 Apr 2017 4,520
30 Oct 2017 4,222
17 Apr 2019 4,508
  
14 Mar 2020 3,568
27 Mar 2021 3,754