Home Basin Index

Our new website can be found at: https://water.usace.army.mil/office/nae. All USACE water management offices will be moving under the national Access to Water domain in the near future. Please provide any comments to: NAE.RCC@usace.army.mil

Merrimack River @ Lowell, Ma
Merrimack River at Lowell
 Total Drainage Area: 4,635 sq. miles 
 Drainage Area Controlled by Corps Dams: 1,619 sq. miles (35%) 
 Warning Flow/Stage: 28,500 cfs / 49.0 feet 
 Flood Flow/Stage: 45,100 cfs / 52.0 feet 
Date Time
(Eastern)		 Stage
(ft)		 Flow
(cfs)		 CSM
(cfs / sq. mi.)
Jan-14 02:30 am 43.18 4,752 1.0
Jan-14 01:30 am 43.20 4,806 1.0
Jan-14 12:30 am 43.21 4,834 1.0
Jan-13 11:30 pm 43.26 4,972 1.1
Jan-13 10:30 pm 43.26 4,972 1.1
Jan-13 09:30 pm 43.27 4,999 1.1
Jan-13 08:30 pm 43.26 4,972 1.1
Jan-13 07:30 pm 43.25 4,944 1.1
Jan-13 06:30 pm      
Jan-13 05:30 pm      
Jan-13 04:30 pm      
Jan-13 03:30 pm      
Jan-13 02:30 pm      
Jan-13 01:30 pm 43.35 5,223 1.1
Jan-13 12:30 pm 43.26 4,972 1.1
Jan-13 11:30 am 43.28 5,027 1.1
Jan-13 10:30 am 43.39 5,336 1.2
Jan-13 09:30 am 43.37 5,280 1.1
Jan-13 08:30 am 43.34 5,195 1.1
Jan-13 07:30 am 43.35 5,223 1.1
Jan-13 06:30 am 43.38 5,308 1.2
Jan-13 05:30 am 43.37 5,280 1.1
Jan-13 04:30 am 43.36 5,251 1.1
Jan-13 03:30 am 43.31 5,111 1.1
Jan-13 02:30 am 43.25 4,944 1.1
Report Generated January 14, 2026 08:06 am