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Blackwater Dam, Blackwater River
Blackwater Dam, Blackwater River
 Drainage Area: 128 sq. miles 
 Channel Capacity: 2,300 cfs 
 Storage at Spillway Crest: 6.74 in / 46,000 ac-ft  
 Normal Pool: 516 Feet NGVD 
 Gate Settings for May 15, 2026 08:05 am Gate 1 Gate 2 Gate 3 Gate 4 Gate 5 Gate 6 Gate 7 Gate 8
  4.0 4.0 4.0          
Date Time
(Eastern)		 Pool
(ft)		 Storage
(%)		 Storage
(ac-ft)		 Tailwater
(ft)		 Flow
(cfs)		 Inflow
(cfs)		 Precip
(in)
May-16 12:30 pm 535.34 4.2 1,928 6.26 1,589 1,938 20.55
May-16 11:30 am 535.24 4.1 1,902 6.24 1,574 2,000 20.55
May-16 10:30 am 535.09 4.1 1,863 6.22 1,559 2,037 20.55
May-16 09:30 am 535.03 4.0 1,848 6.05 1,437 2,159 20.55
May-16 08:30 am 534.99 4.0 1,838 5.67 1,184 2,326 20.55
May-16 07:30 am 534.68 3.8 1,763 5.64 1,165 2,355 20.55
May-16 06:30 am 534.23 3.6 1,655 5.61 1,147 2,336 20.55
May-16 05:30 am 533.82 3.4 1,562 5.58 1,128 2,338 20.55
May-16 04:30 am 533.37 3.2 1,468 5.55 1,110 2,297 20.55
May-16 03:30 am 532.82 2.9 1,356 5.50 1,080 2,230 20.55
May-16 02:30 am 532.23 2.7 1,244 5.45 1,051 2,155 20.55
May-16 01:30 am 531.65 2.5 1,144 5.40 1,022 2,095 20.55
May-16 12:30 am 530.95 2.3 1,033 5.34 987 1,965 20.55
May-15 11:30 pm 530.18 2.1 925 5.29 959 1,829 20.55
May-15 10:30 pm 529.51 1.9 836 5.21 915 1,709 20.55
May-15 09:30 pm 528.77 1.6 741 5.13 873 1,566 20.55
May-15 08:30 pm 528.03 1.4 649 5.06 836 1,406 20.55
May-15 07:30 pm 527.27 1.3 561 5.00 806 1,258 20.55
May-15 06:30 pm 526.68 1.1 496 4.94 776 1,153 20.55
May-15 05:30 pm 526.13 0.9 439 4.88 747 1,060 20.55
May-15 04:30 pm 525.64 0.8 393 4.83 723 979 20.55
May-15 03:30 pm 525.20 0.7 353 4.79 704 909 20.55
May-15 02:30 pm 524.88 0.7 326 4.75 686 869 20.55
May-15 01:30 pm 524.53 0.7 300 4.71 668 827 20.55
May-15 12:30 pm 524.22 0.6 277 4.67 650 788 20.54
Maximum 24 Hour Drawdown Rate (10 feet/day): 788 cfs + Inflow (1,938 cfs) = 2,300 cfs
Report Generated May 16, 2026 05:41 pm