Shawsheen River at Wilmington
Highest listed crest 10.54 ftFlood stage 7.0 ft57 crests since 1964
The Shawsheen River at Wilmington crested at major flood stage 2 times among the 57 crests the National Weather Service lists from 1964 to 2024. The highest, 10.54 ft on March 16, 2010, was major flooding, 3.54 feet above flood stage. 1 other gauge on the Shawsheen River crested above flood stage within a week of it.
The gauge
- Highest listed crest
- 10.54 ft
- March 16, 2010; 1,880 cubic feet per second
- Flood stage
- 7.0 ft
- Major flooding from 10.0 ft
- Crests at major
- 2
- 18th of 65 gauges in Massachusetts
- Most recent flood crest
- January 11, 2024
- 7.85 ft, minor flooding
Flood stages
The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.
| Action stage | 5.0 | 23 | Mar 29, 2005 |
| Flood stage (minor) | 7.0 | 22 | Jan 11, 2024 |
| Moderate flood stage | 8.0 | 10 | Mar 31, 2010 |
| Major flood stage | 10.0 | 2 | Mar 16, 2010 |
Every listed crest
57 crests from 1964 to 2024. Filled: at or above flood stage. Hover a crest for its date and stage.
Crests at or above flood stage, by decade
- These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
- Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.
Highest crests
The 50 highest of 57 listed crests.
| 1 | Mar 16, 2010 | 10.54 | +3.54 | Major |
| 2 | Oct 22, 1996 | 10.49 | +3.49 | Major |
| 3 | Mar 23, 2001 | 9.87 | +2.87 | Moderate |
| 4 | Jan 26, 1979 | 9.85 | +2.85 | Moderate |
| 5 | Mar 31, 2010 | 9.42 | +2.42 | Moderate |
| 6 | Jun 15, 1998 | 9.03 | +2.03 | Moderate |
| 7 | May 15, 2006 | 8.94 | +1.94 | Moderate |
| 8 | Apr 6, 1987 | 8.91 | +1.91 | Moderate |
| 9 | Apr 2, 2004 | 8.65 | +1.65 | Moderate |
| 10 | Mar 19, 1968 | 8.60 | +1.60 | Moderate |
| 11 | Feb 26, 2010 | 8.15 | +1.15 | Moderate |
| 12 | Jan 28, 1976 | 8.08 | +1.08 | Moderate |
| 13 | Jun 1, 1984 | 7.93 | +0.93 | Minor |
| 14 | Jun 6, 1982 | 7.87 | +0.87 | Minor |
| 15 | Jan 11, 2024 | 7.85 | +0.85 | Minor |
| 16 | Apr 18, 2018 | 7.79 | +0.79 | Minor |
| 17 | Apr 17, 2007 | 7.75 | +0.75 | Minor |
| 18 | Mar 26, 1969 | 7.70 | +0.70 | Minor |
| 19 | Mar 4, 1972 | 7.70 | +0.70 | Minor |
| 20 | Feb 4, 1970 | 7.69 | +0.69 | Minor |
| 21 | Jan 22, 1979 | 7.55 | +0.55 | Minor |
| 22 | Mar 30, 1993 | 7.53 | +0.53 | Minor |
| 23 | Dec 19, 2023 | 7.51 | +0.51 | Minor |
| 24 | Dec 13, 2008 | 7.43 | +0.43 | Minor |
| 25 | Jan 5, 1982 | 7.42 | +0.42 | Minor |
| 26 | Sep 3, 2021 | 7.31 | +0.31 | Minor |
| 27 | Feb 3, 1973 | 7.30 | +0.30 | Minor |
| 28 | Mar 15, 1986 | 7.27 | +0.27 | Minor |
| 29 | Mar 31, 2014 | 7.26 | +0.26 | Minor |
| 30 | Dec 11, 2014 | 7.25 | +0.25 | Minor |
| 31 | Apr 3, 1970 | 7.19 | +0.19 | Minor |
| 32 | Jan 26, 2019 | 7.17 | +0.17 | Minor |
| 33 | Mar 3, 1983 | 7.13 | +0.13 | Minor |
| 34 | Mar 8, 2011 | 7.00 | 0.00 | Minor |
| 35 | Mar 18, 1972 | 6.93 | −0.07 | Action |
| 36 | Feb 11, 1970 | 6.92 | −0.08 | Action |
| 37 | Feb 17, 1984 | 6.92 | −0.08 | Action |
| 38 | Apr 1, 1987 | 6.92 | −0.08 | Action |
| 39 | Mar 23, 1977 | 6.88 | −0.12 | Action |
| 40 | Mar 12, 1983 | 6.87 | −0.13 | Action |
| 41 | Feb 4, 1982 | 6.83 | −0.17 | Action |
| 42 | Apr 2, 1973 | 6.80 | −0.20 | Action |
| 43 | Mar 29, 2005 | 6.80 | −0.20 | Action |
| 44 | Mar 23, 1972 | 6.75 | −0.25 | Action |
| 45 | May 26, 1967 | 6.72 | −0.28 | Action |
| 46 | Dec 18, 1973 | 6.41 | −0.59 | Action |
| 47 | Dec 15, 2002 | 6.21 | −0.79 | Action |
| 48 | Feb 25, 1975 | 6.17 | −0.83 | Action |
| 49 | Mar 23, 1994 | 6.11 | −0.89 | Action |
| 50 | Jan 31, 1990 | 6.05 | −0.95 | Action |
The worst floods along the Shawsheen River
For this gauge's highest crests, the other gauges on the Shawsheen River that crested above flood stage within a week.
Gauges on the Shawsheen River
In USGS station-number order, which runs downstream within a river basin.
| Wilmington this gauge | MA | 10.54 ft, Mar 16, 2010 | 2 |
| Andover | MA | 37.45 ft, May 15, 2006 | 2 |
Other gauges in Middlesex County
| Maynard | 8.94 ft, Aug 20, 1955 | 6 |
| Waltham | 7.56 ft, Mar 16, 2010 | 0 |
| Lowell | 9.74 ft, Mar 17, 2010 | 0 |
| Lowell | 68.40 ft, Mar 20, 1936 | 5 |
| East Pepperell | 19.10 ft, Mar 20, 1936 | 3 |
| West Groton | 8.50 ft, Apr 17, 2007 | 0 |
| Saxonville | 13.99 ft, Mar 31, 2010 | 3 |
Middlesex County: every hazard · River floods across the country · Massachusetts
NOAA National Water Prediction Service, gauge WLMM3, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.