Shawsheen River at Andover
Highest listed crest 37.45 ftFlood stage 29.0 ft18 crests since 2006
The Shawsheen River at Andover crested at major flood stage 2 times among the 18 crests the National Weather Service lists from 2006 to 2024. The highest, 37.45 ft on May 15, 2006, was major flooding, 8.45 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
- 37.45 ft
- May 15, 2006
- Flood stage
- 29.0 ft
- Major flooding from 35.0 ft
- Crests at major
- 2
- 18th of 65 gauges in Massachusetts
- Most recent flood crest
- January 12, 2024
- 30.84 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 | 28.0 | 3 | Apr 6, 2024 |
| Flood stage (minor) | 29.0 | 10 | Jan 12, 2024 |
| Moderate flood stage | 32.0 | 2 | Apr 1, 2010 |
| Major flood stage | 35.0 | 2 | Mar 16, 2010 |
Every listed crest
18 crests from 2006 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
| 1 | May 15, 2006 | 37.45 | +8.45 | Major |
| 2 | Mar 16, 2010 | 36.16 | +7.16 | Major |
| 3 | Apr 18, 2007 | 34.15 | +5.15 | Moderate |
| 4 | Apr 1, 2010 | 33.98 | +4.98 | Moderate |
| 5 | Jan 12, 2024 | 30.84 | +1.84 | Minor |
| 6 | Dec 20, 2023 | 30.80 | +1.80 | Minor |
| 7 | Apr 1, 2014 | 30.56 | +1.56 | Minor |
| 8 | Dec 11, 2014 | 29.90 | +0.90 | Minor |
| 9 | Mar 8, 2011 | 29.68 | +0.68 | Minor |
| 10 | Dec 14, 2008 | 29.59 | +0.59 | Minor |
| 11 | Mar 16, 2023 | 29.37 | +0.37 | Minor |
| 12 | Sep 4, 2021 | 29.21 | +0.21 | Minor |
| 13 | Mar 10, 2008 | 29.09 | +0.09 | Minor |
| 14 | Sep 21, 2023 | 29.09 | +0.09 | Minor |
| 15 | Apr 6, 2024 | 28.83 | −0.17 | Action |
| 16 | Mar 30, 2024 | 28.50 | −0.50 | Action |
| 17 | Mar 25, 2024 | 28.20 | −0.80 | Action |
| 18 | Dec 17, 2020 | 25.85 | −3.15 | Below flood stage |
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.
May 15, 2006: 37.45 ft here, major flooding
- WilmingtonMA · May 15, 2006 · 8.94 ft · Moderate
March 16, 2010: 36.16 ft here, major flooding
- WilmingtonMA · Mar 16, 2010 · 10.54 ft · Major · its highest
April 18, 2007: 34.15 ft here, moderate flooding
- WilmingtonMA · Apr 17, 2007 · 7.75 ft · Minor
Gauges on the Shawsheen River
In USGS station-number order, which runs downstream within a river basin.
| Wilmington | MA | 10.54 ft, Mar 16, 2010 | 2 |
| Andover this gauge | MA | 37.45 ft, May 15, 2006 | 2 |
Other gauges in Essex County
| Atlantic Coast at Gloucester (IN MLLW) | 13.13 ft, Jan 4, 2018 | 0 |
| Ipswich | 10.53 ft, May 15, 2006 | 1 |
| South Middleton | 8.46 ft, May 15, 2006 | 0 |
| Lawrence | 25.37 ft, Dec 20, 2023 | 0 |
| Haverhill | 25.75 ft, Mar 20, 1936 | 3 |
| Byfield | 7.85 ft, May 15, 2006 | 2 |
| Methuen | 12.15 ft, May 16, 2006 | 1 |
Essex County: every hazard · River floods across the country · Massachusetts
NOAA National Water Prediction Service, gauge ANDM3, 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.