Concord River at Lowell
Massachusetts — Water Level & Flood Stage
Located in Middlesex County, Massachusetts on the Concord River. Live water level data from USGS gauge 01099500, updated every 15 minutes.
Current Water Level
Gage Height
Loading...
Streamflow
Loading...
Last Reading
Loading...
Flood Stages
Major Flood
12 ft
Moderate Flood
10 ft
Minor Flood
8 ft
Action Stage
7.5 ft
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
What Floods at Each Level
15.5 ft
This is the maximum recordable river stage at this location.
10 ft
Significant flooding affects people living along the river. In Lowell, Merrill Street, Joiners and Clark Courts, Billerica and Lawrence streets may be most affected. In Billerica, Pershing Street and Stoney Drive as well as the Elsie Avenue neighborhood will be affected. In Bedford, impacted areas include Carlisle Road (Route 225), Bonnyvale Drive, and Sheridan Road. In Concord, the affected areas may include Route 117 and Route 2. Follow the directions of emergency local officals.
9 ft
Significant residential flooding will affect people living along the Concord River. In Lowell, Merrill Street, Joiners and Clark Courts may be affected. In Billerica, Pershing Street and Stoney Drive as well as the Elsie Avenue neighborhood will be affected. Follow the directions of emergency management officials.
8.5 ft
Flooding is expected along portions of the Concord River. This includes homes on Joiners and Clark Courts and Merrill Street in Lowell. It also includes some residences in Billerica along Pershing Street, Stoney Drive, and on Elsie Avenue off River Street.
8 ft
Low lying areas along the Concord River will be flooded. The area most prone to flooding is a small section of Billerica along Elsie Avenue off River Street.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
Loading chart data...
Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Mar 17, 2010 | 9.74 ft | 5,840 cfs |
| Mar 17, 2010 | 9.74 ft | 5,840 cfs |
| Apr 3, 2010 | 9.64 ft | 5,660 cfs |
| Apr 3, 2010 | 9.64 ft | 5,660 cfs |
| Jan 27, 1979 | 9.6 ft | 5,410 cfs |
About This Gauge
USGS Site
NWS LID
LCNM3
River
Concord River
County
Middlesex, MA
Coordinates
42.6368°N, 71.3020°W
Get Flood Alerts for Concord River
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of Concord River at Lowell?
The Concord River at Lowell gauge is maintained by USGS (site 01099500) and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for Concord River at Lowell?
The NWS-defined flood stage for Concord River at Lowell is 8 feet. Action stage begins at 7.5 feet. Moderate flooding starts at 10 feet, and major flooding at 12 feet.
How do I get alerts when Concord River rises?
Download StormCast free on Google Play, go to River Gauges, and add Concord River at Lowell to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category — even when your screen is off.
Where is the Concord River at Lowell gauge located?
The gauge is located in Middlesex County, Massachusetts at coordinates 42.6368°N, 71.3020°W. USGS site number: 01099500. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Resources
Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey
- Stage may be affected by ice.