Potomac River, river in the east central United States, rising in North and South branches in the Appalachian Mountains of West Virginia.

Minor: 10 ft Action: 5 ft Potomac River near Washington DC (Little Falls) NWSLI: BRKM2, Reach ID: 4512772 OBSERVED FORECAST 2.90 ft 2.90 ft Zoom 1d 2d 7d 14d All 13 May 2026 → 21 May 2026 Zoom 12 am May 14 12 am May 15 12 am May 16 12 am May 17 12 am May 18 12 am May 19 12 am May 20 12 am May 21 20 Apr 20 Apr 27 Apr 27 Apr 4 May 4 May 11 May 11 May 18 May 18 May 0 2 4 6 8 10 ⏱ 2.92 ft 10. ...

For thousands of years, the Potomac River has played a critical role in the lives of the communities that settled along its banks as well as the wide variety of animals that call the river their home.

The Potomac River took the top spot on the list of most endangered U.S. rivers because of the January sewage spill and the risks posed by data centers.

Potomac is U.S.’s most endangered river in 2026, report says – NBC4 ...

The Potomac River ranks as the most endangered river in the U.S. according to American Rivers’ 2026 list, released this month. The designation is largely driven by rapid, uncontrolled data ...

Potomac River Named Most Endangered in U.S. for 2026, Citing Data ...