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North Hartland Dam, Ottauquechee River
North Hartland Dam, Ottauquechee River
 Drainage Area: 220 sq. miles 
 Channel Capacity: 6,000 cfs 
 Storage at Spillway Crest: 5.86 in / 68,750 ac-ft  
 Normal Pool: 35 Feet 
 Gate Settings for May 20, 2025 07:00 am Gate 1 Gate 2 Gate 3 Hydro Pos. Bypass Gate 6 Gate 7 Gate 8
  10.0 10.0 10.0 1 0.0      
Date Time
(Eastern)		 Pool
(ft)		 Storage
(%)		 Storage
(ac-ft)		 Tailwater
(ft)		 Flow
(cfs)		 Inflow
(cfs)		 Precip
(in)		 Air Temp
(F)
May-20 07:00 pm 36.43 0.6 300 4.29 870 918 18.66 54.1
May-20 06:00 pm 36.43 0.6 300 4.31 884 949 18.66 54.7
May-20 05:00 pm 36.45 0.6 305 4.37 928 967 18.66 54.7
May-20 04:00 pm 36.43 0.6 300 4.47 1,003 957 18.66 54.3
May-20 03:00 pm 36.48 0.6 311 4.46 995 989 18.66 55.8
May-20 02:00 pm 36.49 0.6 313 4.34 906 997 18.66 55.6
May-20 01:00 pm 36.48 0.6 311 4.35 913 1,013 18.66 54.0
May-20 12:00 pm 36.43 0.6 300 4.48 1,011 1,021 18.66 53.4
May-20 11:00 am 36.45 0.6 305 4.52 1,042 1,036 18.66 51.1
May-20 10:00 am 36.49 0.6 313 4.52 1,042 1,074 18.66 49.6
May-20 09:00 am 36.48 0.6 311 4.51 1,034 1,064 18.66 48.3
May-20 08:00 am 36.49 0.6 313 4.41 957 1,055 18.66 47.5
May-20 07:00 am 36.46 0.6 307 4.41 957 1,057 18.66 46.3
May-20 06:00 am 36.45 0.6 305 4.82 1,302 1,048 18.66 45.5
May-20 05:00 am 36.42 0.6 298 4.16 783 1,068 18.66 45.3
May-20 04:00 am 36.34 0.5 281 4.83 1,311 1,056 18.66 45.5
May-20 03:00 am 36.54 0.6 323 5.19 1,641 1,079 18.66 45.8
May-20 02:00 am 36.81 0.7 380 5.20 1,650 1,133 18.66 46.0
May-20 01:00 am 37.05 0.8 431 5.21 1,659 1,160 18.66 46.3
May-20 12:00 am 37.29 0.9 481 5.22 1,668 1,191 18.66 46.8
May-19 11:00 pm 37.48 1.0 521 5.23 1,677 1,243 18.66 47.1
May-19 10:00 pm 37.71 1.1 569 5.24 1,687 1,249 18.66 47.2
May-19 09:00 pm 37.92 1.2 613 5.27 1,714 1,283 18.66 47.6
May-19 08:00 pm 38.11 1.2 653 5.35 1,789 1,302 18.66 48.9
May-19 07:00 pm 38.34 1.3 701 5.36 1,798 1,340 18.66 50.0
Maximum 24 Hour Drawdown Rate (10 feet/day): 151 cfs + Inflow (918 cfs) = 1,069 cfs
Report Generated May 20, 2025 11:15 pm