Area / Capacity
Blackwater Dam
Drainage Area = 128 sq. mi.
Stage
(ft)
Area
(acres)
Capacity
(ac-ft)
Capacity
(in)
Full
(Percent)
515 0 0 0.00 0.0
516 0 10 0.00 0.0
517 0 20 0.00 0.0
518 0 35 0.01 0.1
519 0 55 0.01 0.1
520 1 80 0.01 0.2
521 2 110 0.02 0.2
522 3 150 0.02 0.3
523 4 200 0.03 0.4
524 5 260 0.04 0.6
525 8 335 0.05 0.7
526 10 425 0.06 0.9
527 13 530 0.08 1.0
528 16 645 0.09 1.0
529 20 770 0.11 2.0
530 26 900 0.13 2.0
531 34 1,040 0.15 2.0
532 46 1,200 0.18 3.0
533 63 1,390 0.20 3.0
534 95 1,600 0.23 3.0
535 135 1,840 0.27 4.0
536 187 2,100 0.31 5.0
537 243 2,380 0.35 5.0
538 300 2,680 0.39 6.0
539 360 3,000 0.44 7.0
540 420 3,340 0.49 7.0
541 490 3,720 0.54 8.0
542 565 4,180 0.61 9.0
543 645 4,720 0.69 10.0
544 725 5,340 0.78 12.0
545 815 6,020 0.88 13.0
546 905 6,770 0.99 15.0
547 1000 7,640 1.12 17.0
548 1095 8,640 1.27 19.0
549 1200 9,800 1.44 21.0
550 1310 11,150 1.63 24.0
551 1420 12,600 1.85 27.0
552 1530 14,000 2.05 30.0
553 1650 15,550 2.28 34.0
554 1770 17,300 2.53 38.0
555 1890 19,200 2.81 42.0
556 2020 21,200 3.11 46.0
557 2160 23,200 3.40 50.0
558 2300 25,400 3.72 55.0
559 2440 27,800 4.07 60.0
560 2580 30,300 4.44 66.0
561 2720 33,000 4.83 72.0
562 2860 35,500 5.20 77.0
563 3000 38,200 5.60 83.0
564 3100 40,600 5.95 88.0
565 3200 43,200 6.33 94.0
566 3280 46,000 6.74 100.0
567 3360 49,000 7.18 107.0
568 3430 52,100 7.63 113.0
Invert Elevation = 515 ft. NGVD
Spillway Crest = 566 ft Top of Dam = 584 ft