Data is updated every year about October/November time period



Northfield Brook Dam, Northfield Brook
Peak Pool Levels
by Water Year
(1968 - Present)
Drainage Area:  6 sq. miles
Normal Pool:  22.5 ft.
Gate Invert Elev.:  476 ft. NGVD
1" Runoff =   320 ac-ft
Storage at Spillway Crest:   7.7 in. / 2,350 ac-ft



Date
Annual Peak
Pool Level (ft)
Storage Utilized
Inches Acre-Feet Percent
Mar 1968 1 39.0 0.7 224 10
Apr 1969 1 40.5 0.8 248 11
     
Apr 1970 1 39.0 0.7 224 10
Sep 1971 1 25.5 0.2 54 2
Mar 1972 1 33.0 0.5 140 6
Feb 1973 1 45.2 1.1 331 14
Dec 1973 1 56.4 1.9 589 25
Sep 1975 1 57.4 2.0 617 26
Jan 1976 1 51.6 1.5 468 20
Mar 1977 1 36.0 0.6 180 8
Jan 1978 1 45.7 1.1 340 14
Mar 1979 1 59.6 2.2 680 29
     
Mar 1980 1 52.2 1.6 482 21
Feb 1981 1 44.4 1.0 316 13
Jun 1982 1 59.9 2.3 689 29
Mar 1983 1 43.8 1.0 305 13
May 1984 1 67.4 3.1 936 40
Sep 1985 1 37.7 0.7 205 9
Jan 1986 1 43.8 1.0 305 13
Apr 1987 1 62.0 2.5 754 32
May 1988 1 23.1 0.1 32 1
Nov 1988 1 41.5 0.9 265 11
     
Oct 1989 1 60.7 2.3 714 30
Oct 1990 1 38.6 0.7 218 9
Jun 1992 1 33.5 0.5 146 6
Mar 1993 1 33.8 0.5 150 6
Jan 1994 1 30.0 0.3 103 4
Mar 1995 1 28.9 0.3 90 4
Jan 1996 1 50.9 1.5 451 19
Oct 1996 1 54.2 1.7 531 23
01 Jul 1998 33.2 0.5 143 6
17 Sep 1999 49.5 1.4 420 18
     
07 Jun 2000 27.7 0.3 77 3
22 Mar 2001 40.1 0.8 242 10
06 Jan 2002 28.2 0.3 82 3
28 Sep 2003 48.9 1.3 406 17
18 Dec 2003 42.1 0.9 275 12
29 Mar 2005 41.1 0.9 260 11
15 Oct 2005 66.6 2.9 890 39
16 Apr 2007 64.8 2.8 845 36
14 Feb 2008 46.9 1.2 364 15
12 Dec 2008 48.5 1.3 397 16
     
14 Mar 2010 40.8 0.9 252 11
29 Aug 2011 78.5 4.6 1,386 59
08 Dec 2011 39.2 0.8 254 11
14 Jun 2013 45.7 1.1 340 15
01 May 2014 45.1 1.1 329 14
10 Dec 2014 36.5 0.6 197 9
25 Feb 2016 36.6 0.7 199 9
01 Oct 2016 20.0 0.1 19 1
17 Apr 2018 36.5 0.6 187 8
22 Dec 2018 48.7 1.3 401 17
     
14 Dec 2019 38.4 0.8 261 11
02 Sep 2021 64.2 2.7 824 35

Notes:
1.    Estimated Date of Peak Pool