Colebrook Dam, West Branch Farmington River
Peak Pool Levels
by Water Year
(1969 - Present)
Drainage Area:  118 sq. miles
Normal Pool:  708 ft. NGVD (714.5 ft. Spring)
Gate Invert Elev.:  575 ft. NGVD
1" Runoff =   6,293 ac-ft
Storage at Spillway Crest:   8.0 in. / 50,200 ac-ft

Date	Annual Peak Pool Level (ft)	Storage Utilized
		Inches	Acre-Feet	Percent
1969
20 May 1970	718.0	1.2	7,860	16
17 May 1971	715.0	0.9	5,400	11
05 Jul 1972	739.8	4.4	27,504	55
07 Apr 1973	719.3	1.4	8,926	18
14 May 1974	718.7	1.3	8,434	17
05 Apr 1975	721.1	1.7	10,446	21
30 Jan 1976	717.9	1.2	7,778	15
26 Apr 1977	722.0	1.8	11,220	22
11 Jan 1978	718.8	1.4	8,516	17
31 May 1979	729.6	2.8	17,848	36
16 Apr 1980	729.8	2.9	18,024	36
22 May 1981	701.1	BELOW FLOOD CONTROL POOL
10 Jun 1982	734.2	3.5	22,064	44
26 Apr 1983	747.1	5.5	34,884	69
04 Jun 1984	757.5	7.3	46,150	92
05 Aug 1985	676.2	BELOW FLOOD CONTROL POOL
21 Nov 1985	693.9	BELOW FLOOD CONTROL POOL
11 Apr 1987	732.8	3.3	20,776	41
28 May 1988	705.2	BELOW FLOOD CONTROL POOL
18 May 1989	722.7	1.9	11,822	24
06 Apr 1990	719.9	1.5	9,418	19
28 Mar 1991	713.8	0.7	4,464	9
12 Jun 1992	701.4	BELOW FLOOD CONTROL POOL
19 Apr 1993	735.0	3.6	22,800	45
18 Apr 1994	718.0	1.2	7,860	16
20 Mar 1995	706.3	BELOW FLOOD CONTROL POOL
20 Apr 1996	721.8	1.8	11,014	22
05 May 1997	716.5	1.1	6,638	13
13 May 1998	720.7	1.6	10,068	20
25 May 1999	714.5	0.8	5,026	10
12 Jun 2000	724.9	2.2	13,680	27
18 Apr 2001	718.2	1.3	8,024	16
19 Jun 2002	684.5	BELOW FLOOD CONTROL POOL
24 Jun 2003	715.7	0.9	5,933	12
05 May 2004	712.5	0.5	3,411	7
11 Apr 2005	719.7	1.5	9,000	19
21 Jan 2006	726.7	2.5	15,500	31
23 Apr 2007	739.9	4.4	27,602	55
11 Mar 2008	720.4	1.6	9,844	20
30 Dec 2008	714.4	0.8	4,940	10
02 Apr 2010	725.7	2.3	14,413	29
12 Sep 2011	735.1	3.7	22,900	45
04 Oct 2011	728.4	2.7	16,818	33
17 Jun 2013	736.9	3.9	24,662	49
04 May 2014	719.1	1.4	8,770	18
23 Apr 2015	715.1	0.9	5,466	11
16 May 2016	702.0	BELOW FLOOD CONTROL POOL
12 Apr 2017	715.9	1.0	6,154	12
18 Apr 2018	718.3	1.3	8,098	16
22 Apr 2019	715.9	1.0	6,102	12
05 May 2020	716.6	1.1	6,625	13
19 Jul 2021	718.2	1.3	8,049	16

Notes:

1.    Below Flood Control Pool