Adventures Unbound: Fletcher's Cove Boathouse
Northwest Branch Anacostia River in Maryland
Around here
Around Northwest Branch Anacostia River
Data Source: Recreation.gov · Source: USGS GNIS · Source: National Park Service. No claim to original U.S. Government works. · Public land: USGS PAD-US
About this river
Northwest Branch Anacostia River is a 19.7 mile river near Adventures Unbound: Fletcher's Cove Boathouse. Streamflow is measured at the USGS gauge Northwest Branch Anacostia River nr Colesville, MD (site 01650500). The National Hydrography Dataset places it at stream order 5. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1924 to 2026
Northwest Branch Anacostia River typically runs highest in March, at a median 20 cfs, and lowest in September, at 6.5 cfs. The highest flow on record for any single day is 2,370 cfs, in 1972.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 15 | 11 to 23 |
| February | 18 | 13 to 30 |
| March | 20 | 15 to 28 |
| April | 19 | 14 to 27 |
| May | 15 | 11 to 23 |
| June | 12 | 7.8 to 17 |
| July | 8.2 | 5.3 to 15 |
| August | 7.1 | 4.0 to 14 |
| September | 6.5 | 3.3 to 12 |
| October | 7.6 | 5.0 to 13 |
| November | 10 | 7.0 to 15 |
| December | 14 | 9.8 to 21 |
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 88 years of record. Statistics published by the US Geological Survey for Northwest Branch Anacostia River nr Colesville, MD (site 01650500). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Made to print
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Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Northwest Branch Anacostia 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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