RIVER GAUGE · PATAPSCO RIVER
Patapsco River near Elkridge at Patapsco Valley State Park
Baltimore County, Maryland
Water level5.32 ft
Flow67 cfs
Last readingSep 16, 2026, 4:00 PM UTC (last recorded)
Action10 ft
Minor flood15 ft
Moderate flood19 ft
Major flood21 ft
The past week
Loading chart…
What floods at each level
- 21 ft
Water approaches structures.
- 20 ft
Washington Boulevard begins to flood at the Elkridge/Halethorpe border.
- 19 ft
Water covers the entrance park at Patapsco Valley State Park.
- 17 ft
A low spot near the end of Levering Avenue begins to flood.
- 15 ft
Water begins to cover a portion of River Road in Patapsco Valley State Park. Large portions of the park begin to flood near the playground off Gunn Road.
- 10 ft
Water begins to cover riverside trails in Patapsco Valley State Park.
- 9 ft
Water spills over the banks but no impacts are observed.
Highest crests on record
| Date | Level | Flow |
|---|---|---|
| May 27, 2018 | 24.76 ft | 29,428 cfs |
| Jul 30, 2016 | 23.78 ft | 25,900 cfs |
| Sep 7, 2011 | 21.66 ft | 23,500 cfs |
More on Patapsco River
UpstreamPatapsco River near Catonsville
Get an alert when Patapsco River rises
Save this gauge in the free StormCast app and pick the level that matters to you. Your phone goes off when the water gets there.
