Data is updated every year about October/November time period



Ball Mountain Dam, West River
Peak Project Releases
by Water Year
(1962 - Present)
Drainage Area:  172 sq. miles
Normal Pool:  65 ft. (Summer), 35 ft. (Winter)
Gate Invert Elev.:  805.5 ft. NGVD
1" Runoff =   9,173 ac-ft
Storage at Spillway Crest:   5.9 in. / 54,450 ac-ft


Date Annual Peak
Release (cfs)
24 Apr 1962 5,020
22 Apr 1963 4,830
15 Apr 1964 3,330
19 Apr 1965 3,630
24 Apr 1966 2,420
03 Apr 1967 2,620
29 Mar 1968 3,580
29 Apr 1969 4,530
  
18 Apr 1970 2,980
21 Apr 1971 3,650
10 May 1972 4,400
03 Apr 1973 3,840
27 Dec 1973 4,560
24 Apr 1975 3,240
14 Aug 1976 3,910
17 Mar 1977 5,080
18 Oct 1977 4,160
25 May 1979 4,800
  
24 Mar 1980 2,930
25 Feb 1981 3,780
28 Apr 1982 4,300
26 Apr 1983 4,360
08 Jun 1984 4,840
02 Jan 1985 2,910
31 Mar 1986 4,430
08 Apr 1987 5,800 1
06 Oct 1987 3,300
07 Apr 1989 4,060
  
19 Mar 1990 4,550
22 Apr 1991 4,230
04 May 1992 3,150
23 Apr 1993 3,390
18 Apr 1994 4,440
06 Dec 1994 3,165
24 Apr 1996 5,020
29 Apr 1997 3,150
06 Apr 1998 5,000
23 Mar 1999 3,430
  
29 Mar 2000 4,660
29 Apr 2001 4,680
14 May 2002 3,975
16 Apr 2003 4,862
30 Oct 2003 4,360
08 Apr 2005 4,910
17 May 2006 4,940
24 Apr 2007 4,730
29 Apr 2008 4,860
04 Apr 2009 5,140
  
01 Apr 2010 5,730
12 Apr 2011 4,410
23 Apr 2012 3,140
12 Jun 2013 4,660
13 Jan 2014 4,410
15 Apr 2015 4,280
29 Oct 2015 3,530
14 Apr 2017 4,210
13 Jan 2018 5,809
16 Apr 2019 5,161
  
14 Apr 2020 4,027
29 Mar 2021 4,480

Notes:
1.    Includes 2,700 cfs from spillway discharge