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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 01:00 pm 57.28 2.6 1,414       26.90 71.0
May-16 12:00 pm 57.40 2.6 1,423 5.91 645 570 26.90 68.1
May-16 11:00 am 57.52 2.7 1,431 5.92 651 581 26.90 64.8
May-16 10:00 am 57.63 2.7 1,439 5.92 651 591 26.90 61.8
May-16 09:00 am 57.73 2.7 1,447 5.92 651 602 26.90 53.7
May-16 08:00 am 57.81 2.7 1,452 5.92 651 613 26.90 49.3
May-16 07:00 am 57.89 2.7 1,458 5.92 651 624 26.90 44.7
May-16 06:00 am 57.95 2.7 1,462 5.92 651 634 26.90 42.7
May-16 05:00 am 58.00 2.7 1,466 5.92 651 645 26.90 42.5
May-16 04:00 am 58.04 2.7 1,469 5.93 656 658 26.90 43.1
May-16 03:00 am 58.07 2.7 1,471 5.93 656 669 26.90 44.5
May-16 02:00 am 58.08 2.7 1,472 5.93 656 681 26.90 45.4
May-16 01:00 am 58.09 2.7 1,472 5.93 656 694 26.90 45.7
May-16 12:00 am 58.09 2.7 1,472 5.93 656 710 26.90 44.6
May-15 11:00 pm 58.07 2.7 1,471 5.93 656 725 26.90 45.1
May-15 10:00 pm 58.03 2.7 1,468 5.93 656 739 26.90 46.4
May-15 09:00 pm 57.98 2.7 1,465 5.93 656 755 26.90 48.1
May-15 08:00 pm 57.91 2.7 1,460 5.93 656 770 26.90 51.4
May-15 07:00 pm 57.83 2.7 1,454 5.93 656 787 26.90 55.9
May-15 06:00 pm 57.72 2.7 1,446 5.93 656 801 26.90 57.3
May-15 05:00 pm 57.60 2.7 1,437 5.93 656 819 26.90 57.2
May-15 04:00 pm 57.46 2.6 1,427 5.93 656 836 26.90 57.2
May-15 03:00 pm 57.30 2.6 1,416 5.93 656 853 26.90 57.0
May-15 02:00 pm 57.13 2.6 1,403 5.93 656 865 26.90 55.6
May-15 01:00 pm 56.93 2.6 1,389 5.93 656 865 26.90 57.4
Maximum 24 Hour Drawdown Rate (20 feet/day): 533 cfs + Inflow (570 cfs) = 1,104 cfs
Report Generated May 16, 2026 01:11 pm