RIVER GAUGE · GUNPOWDER FALLS
Gunpowder Falls at Hoffmanville
Baltimore County, Maryland
Water level0.99 ft
Flow—
Last readingSep 16, 2026, 4:15 PM UTC (last recorded)
Action5 ft
Minor flood6 ft
Moderate flood8 ft
Major flood10 ft
The past week
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What floods at each level
- 10 ft
Significant flooding is occurring along Gunpowder Falls upstream of Prettyboy Reservoir, with roads and structures affected.
- 8 ft
Grave Run Road is flooded. Flooding of structures is occurring at River Valley Ranch.
- 6 ft
Due to a combination of high water on Gunpowder Falls and backwater on Muddy Creek, water enters buildings at River Valley Ranch.
- 5 ft
Water overflows the banks into the floodplain but few impacts are observed.
Highest crests on record
| Date | Level | Flow |
|---|---|---|
| Aug 27, 2009 | 10.02 ft | 6,780 cfs |
| Jul 24, 2018 | 7.69 ft | 3,740 cfs |
| Sep 8, 2011 | 6.93 ft | — |
More on Gunpowder Falls
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