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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 April 10, 2026 12:32 pm Gate 1 Gate 2 Gate 3 Gate 4 Gate 5 Gate 6 Gate 7 Gate 8
  1.0 1.0 1.0          
Date Time
(Eastern)
Pool
(ft)
Storage
(%)
Storage
(ac-ft)
Tailwater
(ft)
Flow
(cfs)
Inflow
(cfs)
Precip
(in)
Apr-13 03:30 am 530.06 2.0 908 3.63 280 187 15.59
Apr-13 02:30 am 530.11 2.0 915 3.63 280 184 15.56
Apr-13 01:30 am 530.18 2.1 925 3.63 280 190 15.47
Apr-13 12:30 am 530.22 2.1 931 3.63 280 175 15.40
Apr-12 11:30 pm 530.31 2.1 943 3.63 280 190 15.36
Apr-12 10:30 pm 530.34 2.1 948 3.63 280 187 15.36
Apr-12 09:30 pm 530.39 2.1 955 3.63 280 188 15.36
Apr-12 08:30 pm 530.45 2.1 963 3.63 280 191 15.36
Apr-12 07:30 pm 530.50 2.2 970 3.63 280 192 15.36
Apr-12 06:30 pm 530.59 2.2 983 3.63 280 203 15.36
Apr-12 05:30 pm 530.63 2.2 988 3.64 283 198 15.36
Apr-12 04:30 pm 530.67 2.2 994 3.64 283 199 15.36
Apr-12 03:30 pm 530.72 2.2 1,001 3.64 283 205 15.36
Apr-12 02:30 pm 530.77 2.2 1,008 3.64 283 213 15.36
Apr-12 01:30 pm 530.82 2.2 1,015 3.64 283 201 15.36
Apr-12 12:30 pm 530.87 2.3 1,022 3.65 285 213 15.36
Apr-12 11:30 am 530.93 2.3 1,030 3.65 285 217 15.36
Apr-12 10:30 am 530.97 2.3 1,036 3.65 285 218 15.36
Apr-12 09:30 am 531.00 2.3 1,040 3.65 285 205 15.36
Apr-12 08:30 am 531.02 2.3 1,043 3.65 285 208 15.36
Apr-12 07:30 am 531.10 2.3 1,056 3.65 285 222 15.36
Apr-12 06:30 am 531.11 2.3 1,058 3.65 285 216 15.36
Apr-12 05:30 am 531.15 2.3 1,064 3.65 285 226 15.36
Apr-12 04:30 am 531.18 2.4 1,069 3.65 285 226 15.36
Apr-12 03:30 am 531.25 2.4 1,080 3.65 285 240 15.36
Maximum 24 Hour Drawdown Rate (10 feet/day): 417 cfs + Inflow (187 cfs) = 603 cfs
Report Generated April 13, 2026 07:55 am