New England District Corps of Engineers
Projects
May 13, 2025 06:22 AM
Legend: Pool >50% Full Spillway Discharge (pool stage > spillway)
  Storage Flow Rainfall Pool
Project Drain.
Area
( mi2 )
Date/Time Pool
(ft)
6 Hr Change
(ft)
24 Hr Pred.
Stage
(ft)
% Cap. Avail.
per Drain. Area
(in)
Outflow
(cfs)
Inflow
(cfs)
24hr
(in)
48hr
(in)
7-Day
(in)
Normal Spillway
MERRIMACK RIVER BASIN
Basin Regulator: Laura Fraser
Franklin Falls Dam 1000 13 MAY 05:30 am 318.14 -2.12 309.4 5 2.69 8,691 5,841 .00 .00 .84 307 389
Blackwater Dam 128 13 MAY 05:30 am 545.40 -.41 543.6 14 5.82 1,658 1,043 .00 .00 3.01 516 566
Edward Macdowell Dam 44 13 MAY 06:15 am 928.39 -.33 927.1 37 3.42 637 403 .00 .00 2.23 911.5 946
Hopkinton Dam 426 13 MAY 06:15 am 397.47 -.30 n/a 25 5.76 n/a n/a .00 .00 3.29 380 416
Everett Dam 64 13 MAY 06:15 am 361.11 -.60 358.3 3 6.60 904 379 .00 .00 2.82 340.5 418


New England District Corps of Engineers
River Gages
May 13, 2025 06:20 AM
Legend: Warning Stage Flood Stage
Gage Drainage
Area
( mi2 )
Date/Time Stage
(ft)
Q
(cfs)
6 Hour
Change
Stage (ft)
6 Hour
Change
Flow (cfs)
CSM
Q/DA
Warning
Flow
Warning
Stage
Flood
Flow
Flood
Stage
MERRIMACK RIVER BASIN
Basin Regulator: Laura Fraser
E.B. Pemigewasset River @ Lincoln, Nh 115 13 MAY 05:15 am 5.12 583 -.05 -24 5.1 n/a n/a n/a n/a
Pemigewasset River @ Woodstock, Nh 193 13 MAY 05:30 am 4.05 981 -.07 -56 5.1 4830 7 9750 9
Pemigewasset River @ Plymouth, Nh 622 13 MAY 05:30 am 3.03 2,935 -.17 -200 4.7 9510 8 19500 13
Baker River @ Rumney, Nh 143 13 MAY 05:30 am 2.30 629 -.09 -49 4.4 2850 5.3 7080 9.8
Smith River @ Bristol, Nh 86 13 MAY 05:30 am 4.32 508 -.20 -82 5.9 1540 6.5 2380 8
Winnipesaukee River @ Tilton, Nh 471 13 MAY 05:30 am 5.35 1,751 -.01 -7 3.7 3020 7 3460 7.5
Merrimack River @ Franklin Jct, Nh 1507 13 MAY 06:00 am 10.30 10,324 -.61 -1,213 6.9 15900 13 18100 14
Merrimack River @ Concord, Nh 2385 13 MAY 06:15 am 11.48 22,690 -.11 -330 9.5 n/a 10 n/a 13.7
Merrimack River @ Goffs Falls, Nh 3092 13 MAY 05:30 am 9.75 25,542 .06 290 8.3 36400 12 46200 14
Merrimack River @ Nashua, Nh 3982 13 MAY 05:15 am 13.69 n/a -.11 n/a n/a n/a 16 n/a 18
Merrimack River @ Lowell, Ma 4635 13 MAY 05:30 am 50.87 38,547 -.07 -397 8.3 28500 49 45100 52
Merrimack River @ Haverhill, Ma 4900 13 MAY 06:15 am 7.09 n/a -.58 n/a n/a n/a n/a n/a n/a
Contoocook River @ Peterborough, Nh 68 13 MAY 05:30 am 3.05 445 -.11 -48 6.5 660 3.5 2680 6
Contoocook River @ Henniker, Nh 368 13 MAY 06:15 am 9.70 2,860 -.20 -245 7.8 2050 9 5750 11.5
Contoocook River @ Riverhill, Nh 760 13 MAY 06:00 am 15.29 6,698 .02 36 8.8 n/a 14.7 n/a 18
Warner River @ Davisville, Nh 146 13 MAY 05:30 am 6.73 1,272 -.13 -91 8.7 1120 6.5 2310 8
Piscataquog River @ Goffstown, Nh 202 13 MAY 05:30 am 6.84 1,877 .12 107 9.3 1180 6 3660 8.5
Souhegan River @ Souhegan, Nh 171 13 MAY 05:30 am 5.53 1,502 -.18 -134 8.8 2260 6.5 5000 9
Nashua River @ East Pepperell, Ma 316 13 MAY 05:45 am 6.97 3,318 -.40 -290 10.5 2990 6.5 4080 8
Concord River @ Lowell, Ma 400 13 MAY 05:30 am 6.60 1,630 .00 0 4.1 2580 7.5 3190 8
Shawsheen River @ Wilmington, Ma 37 13 MAY 05:30 am 3.73 135 -.17 -16 3.6 270 5 620 7
Spicket River @ Methuen, Ma 62 13 MAY 05:30 am 6.79 571 -.13 -30 9.2 n/a 6.5 n/a 8