Around here
Around Shawsheen River
- Bike The Battle Road TrailBiking · 1-4 Hours12 mi (opens in a new tab)
- Guided Tours & Special ProgramsGuided Tours · 30-120 Minutes12.4 mi (opens in a new tab)
- Hike the Battle Road TrailFront-Country Hiking · 1-4 Hours12.7 mi (opens in a new tab)
- Take an Industrial Site TourGuided Tours · 1-2 Hours13.1 mi (opens in a new tab)
Data Source: Recreation.gov · Source: USGS GNIS · Source: National Park Service. No claim to original U.S. Government works. · Public land: USGS PAD-US · Forest roads: USDA Forest Service MVUM · BLM routes and areas: Bureau of Land Management (simplified for web display)
About this river
Shawsheen River is a 24.1 mile river near Paddle Boston : Blessing of the Bay, Somerville in Massachusetts. Streamflow is measured at the USGS gauge Shawsheen River near Wilmington, MA (site 01100600). The National Hydrography Dataset places it at stream order 5. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1964 to 2026
Shawsheen River typically runs highest in March, at a median 89 cfs, and lowest in September, at 12 cfs. The highest flow on record for any single day is 1,690 cfs, in 2010.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 50 | 29 to 84 |
| February | 56 | 34 to 90 |
| March | 89 | 61 to 132 |
| April | 79 | 54 to 115 |
| May | 53 | 36 to 80 |
| June | 29 | 15 to 51 |
| July | 16 | 9.3 to 32 |
| August | 13 | 6.8 to 30 |
| September | 12 | 6.5 to 24 |
| October | 17 | 8.9 to 39 |
| November | 34 | 20 to 69 |
| December | 50 | 28 to 91 |
Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 63 years of record. Statistics published by the US Geological Survey for Shawsheen River near Wilmington, MA (site 01100600). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Boat access nearby
3 mapped launches sit in the mapped area of Shawsheen River. Ramp data comes from the USGS national boat-ramp inventory.
- Merrimack RiverMerrimack RiverRestricted
- Merrimack River (Riverfront Park)Merrimack RiverPublic
- Merrimack River (Methuen)Merrimack RiverPublic
Made to print
Put Shawsheen River on your wall
This river section as an art print, drawn over the real terrain with its miles, plus the trails, roads and peaks around it. Pick the colors and the size, and see the finished print before you buy. From $39, shipping included.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Shawsheen River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
See every free widget you can put on your site, including live conditions and a 7 day forecast.
