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Ball Mountain Dam, West River
Ball Mountain Dam, West River
 Drainage Area: 172 sq. miles 
 Channel Capacity: 5,000 cfs 
 Storage at Spillway Crest: 5.92 in / 54,450 ac-ft  
 Normal Pool: 65 Feet (Summer), 35 Feet (Winter) 
 Gate Settings for May 16, 2026 12:29 pm Gate 1 Gate 2 Gate 3 Hydro Pos. Gate 5 Gate 6 Gate 7 Gate 8
  0.0 2.5 0.0          
Date Time
(Eastern)		 Pool
(ft)		 Storage
(%)		 Storage
(ac-ft)		 Tailwater
(ft)		 Flow
(cfs)		 Inflow
(cfs)		 Precip
(in)		 Air Temp
(F)
May-16 12:45 pm 57.31 2.6 1,416       26.90 69.8
May-16 11:45 am 57.44 2.6 1,426 5.92 651 574 26.90 67.3
May-16 10:45 am 57.55 2.7 1,434 5.92 651 584 26.90 64.7
May-16 09:45 am 57.66 2.7 1,442 5.92 651 594 26.90 60.7
May-16 08:45 am 57.75 2.7 1,448 5.92 651 605 26.90 52.3
May-16 07:45 am 57.83 2.7 1,454 5.92 651 615 26.90 48.1
May-16 06:45 am 57.91 2.7 1,460 5.92 651 628 26.90 44.1
May-16 05:45 am 57.97 2.7 1,464 5.92 651 639 26.90 42.4
May-16 04:45 am 58.01 2.7 1,467 5.92 651 648 26.90 42.6
May-16 03:45 am 58.05 2.7 1,470 5.93 656 661 26.90 43.5
May-16 02:45 am 58.07 2.7 1,471 5.93 656 672 26.90 44.5
May-16 01:45 am 58.09 2.7 1,472 5.93 656 685 26.90 45.8
May-16 12:45 am 58.09 2.7 1,472 5.93 656 698 26.90 45.5
May-15 11:45 pm 58.08 2.7 1,472 5.93 656 711 26.90 44.6
May-15 10:45 pm 58.06 2.7 1,470 5.93 656 727 26.90 45.3
May-15 09:45 pm 58.02 2.7 1,467 5.93 656 743 26.90 46.8
May-15 08:45 pm 57.96 2.7 1,463 5.93 656 758 26.90 48.7
May-15 07:45 pm 57.89 2.7 1,458 5.93 656 774 26.90 52.6
May-15 06:45 pm 57.80 2.7 1,452 5.93 656 790 26.90 56.8
May-15 05:45 pm 57.70 2.7 1,444 5.93 656 807 26.90 58.4
May-15 04:45 pm 57.57 2.7 1,435 5.93 656 825 26.90 56.3
May-15 03:45 pm 57.42 2.6 1,424 5.93 656 840 26.90 56.8
May-15 02:45 pm 57.26 2.6 1,413 5.93 656 857 26.90 55.9
May-15 01:45 pm 57.08 2.6 1,400 5.93 656 861 26.90 56.7
May-15 12:45 pm 56.88 2.6 1,385 5.93 656 867 26.90 56.5
Maximum 24 Hour Drawdown Rate (20 feet/day): 534 cfs + Inflow (574 cfs) = 1,107 cfs
Report Generated May 16, 2026 12:55 pm