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Around East Branch Housatonic River
Data Source: Recreation.gov · Source: USGS GNIS · Public land: USGS PAD-US
About this river
East Branch Housatonic River is a 15.3 mile river near Berkshire U-Drive Boat Rental in Massachusetts. Streamflow is measured at the USGS gauge East Branch Housatonic River at Coltsville, MA (site 01197000). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1936 to 2026
East Branch Housatonic River typically runs highest in April, at a median 192 cfs, and lowest in August, at 28 cfs. The highest flow on record for any single day is 4,460 cfs, in 1936.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 68 | 45 to 110 |
| February | 67 | 44 to 102 |
| March | 121 | 70 to 216 |
| April | 192 | 123 to 307 |
| May | 97 | 68 to 157 |
| June | 52 | 33 to 91 |
| July | 34 | 23 to 55 |
| August | 28 | 19 to 50 |
| September | 30 | 20 to 55 |
| October | 45 | 30 to 82 |
| November | 69 | 42 to 116 |
| December | 77 | 47 to 131 |
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 91 years of record. Statistics published by the US Geological Survey for East Branch Housatonic River at Coltsville, MA (site 01197000). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
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Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show East Branch Housatonic River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
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