Area / Capacity
Hopkinton Dam
Drainage Area = 426 sq. mi.
Stage
(ft)
Area
(acres)
Capacity
(ac-ft)
Capacity
(in)
Full
(Percent)
380 220 0 0.00 0.0
381 298 300 0.01 0.0
382 376 660 0.03 0.0
383 454 1,090 0.05 1.0
384 532 1,525 0.06 1.0
385 610 2,060 0.09 1.0
386 714 2,690 0.11 2.0
387 818 3,500 0.15 2.0
388 922 4,330 0.18 3.0
389 1026 5,350 0.22 3.0
390 1130 6,450 0.27 4.0
391 1222 7,790 0.33 5.0
392 1314 9,000 0.38 6.0
393 1406 10,350 0.43 7.0
394 1498 11,750 0.49 8.0
395 1590 13,300 0.56 9.0
396 1694 15,090 0.63 10.0
397 1798 16,850 0.70 11.0
398 1902 18,660 0.78 12.0
399 2006 20,685 0.86 13.0
400 2110 22,800 0.95 15.0
401 2218 24,600 1.03 16.0
402 2326 27,050 1.39 21.0
403 2434 29,400 1.56 24.0
404 2542 31,900 1.78 27.0
405 2650 34,500 3.05 47.0
406 2760 37,300 3.46 53.0
407 2870 40,200 3.81 59.0
408 2980 43,100 4.12 63.0
409 3090 46,100 4.53 70.0
410 3200 49,140 4.95 76.0
411 3280 52,425 5.20 80.0
412 3360 55,700 5.44 84.0
413 3440 59,100 5.70 88.0
414 3520 62,700 5.96 92.0
415 3600 65,880 6.21 96.0
416 3698 70,100 6.50 100.0
417 3796 73,600 6.77 104.0
418 3894 77,550 7.06 109.0
419 3992 81,595 7.36 113.0
420 4090 85,600 7.65 118.0
Invert Elevation = 366 ft. NGVD
Spillway Crest = 416 ft Top of Dam = 437 ft