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West Thompson Dam, Quinebaug River
West Thompson Dam, Quinebaug River
 Drainage Area: 172 sq. miles 
 Channel Capacity: 2,300 cfs 
 Storage at Spillway Crest: 6.49 in / 25,600 ac-ft  
 Normal Pool: 15 Feet 
 Gate Settings for May 20, 2025 07:00 am Gate 1 Gate 2 Gate 3 Gate 4 Gate 5 Gate 6 Gate 7 Gate 8
  4.0 6.0 0.0          
Date Time
(Eastern)		 Pool
(ft)		 Storage
(%)		 Storage
(ac-ft)		 Tailwater
(ft)		 Flow
(cfs)		 Inflow
(cfs)		 Precip
(in)		 Air Temp
(F)
May-20 06:30 pm 15.25 2.3 540 2.13 431 411 23.94 57.2
May-20 05:30 pm 15.27 2.3 545 2.14 435 417 23.94 58.9
May-20 04:30 pm 15.28 2.3 547 2.15 439 410 23.94 59.5
May-20 03:30 pm 15.29 2.3 550 2.15 439 413 23.94 59.9
May-20 02:30 pm 15.30 2.3 552 2.16 443 416 23.94 60.3
May-20 01:30 pm 15.30 2.3 552 2.14 435 409 23.94 59.8
May-20 12:30 pm 15.31 2.3 554 2.15 439 418 23.94 59.7
May-20 11:30 am 15.32 2.3 557 2.18 451 417 23.94 57.5
May-20 10:30 am 15.35 2.4 564 2.19 455 427 23.94 56.6
May-20 09:30 am 15.36 2.4 566 2.20 459 431 23.94 54.0
May-20 08:30 am 15.37 2.4 569 2.19 455 430 23.94 50.4
May-20 07:30 am 15.39 2.4 574 2.22 468 434 23.94 49.4
May-20 06:30 am 15.39 2.4 574 2.21 464 424 23.94 47.4
May-20 05:30 am 15.41 2.4 578 2.23 472 424 23.94 47.5
May-20 04:30 am 15.43 2.4 583 2.24 476 425 23.94 47.9
May-20 03:30 am 15.44 2.4 586 2.26 484 421 23.94 48.1
May-20 02:30 am 15.46 2.5 590 2.26 484 422 23.94 48.1
May-20 01:30 am 15.48 2.5 595 2.28 491 438 23.94 48.4
May-20 12:30 am 15.51 2.5 602 2.28 491 454 23.94 48.8
May-19 11:30 pm 15.54 2.5 610 2.32 505 459 23.94 49.6
May-19 10:30 pm 15.57 2.6 617 2.34 513 468 23.94 50.1
May-19 09:30 pm 15.60 2.6 624 2.35 517 483 23.94 50.7
May-19 08:30 pm 15.63 2.6 631 2.37 524 502 23.94 51.9
May-19 07:30 pm 15.63 2.6 631 2.39 531 496 23.94 53.4
May-19 06:30 pm 15.64 2.6 634 2.37 524 501 23.94 56.5
Maximum 24 Hour Drawdown Rate (5 feet/day): 272 cfs + Inflow (411 cfs) = 683 cfs
Report Generated May 20, 2025 11:14 pm