RIVER GAUGE · PATAPSCO RIVER
Patapsco River at Hollofield
Baltimore County, Maryland
Water level1.49 ft
Flow51 cfs
Last readingSep 16, 2026, 4:15 PM UTC (last recorded)
Action9 ft
Minor flood11 ft
Moderate flood19 ft
Major flood25 ft
The past week
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What floods at each level
- 25 ft
Water covers the bridge at Hollofield Road, and crosses the railroad tracks in spots.
- 19 ft
Multiple roads are flooded near Hollofield. Backwater flooding of Dogwood Run is also occurring.
- 11 ft
Hollofield Road begins to flood.
Highest crests on record
| Date | Level | Flow |
|---|---|---|
| Jun 21, 1972 | 31.3 ft | 80,600 cfs |
| Sep 25, 1975 | 22.8 ft | 46,500 cfs |
| Jul 31, 1933 | 19.5 ft | 36,000 cfs |
More on Patapsco River
UpstreamPatapsco River at Woodstock ↗
DownstreamPatapsco River at Ellicott City
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