RIVER GAUGE · NORTHWEST BRANCH
Northwest Branch at Kemp Mill
Montgomery County, Maryland
Water level1.16 ft
Flow0 cfs
Last readingSep 16, 2026, 4:45 PM UTC (last recorded)
Action6 ft
Minor flood9 ft
Moderate flood12 ft
Major flood19 ft
The past week
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What floods at each level
- 19 ft
Water reaches Randolph Road.
- 13 ft
Water approaches a home on Kemps Mill Road.
- 12 ft
Kemps Mill Road begins to flood between Old Randolph Road and Glenallan Avenue.
- 10.5 ft
Water covers the old bridge over Northwest Branch at Old Randolph Road.
- 9 ft
Backyards of homes on Kemps Mill Road just south of Randolph Road are flooded.
- 7 ft
Water begins to flood low-lying portions of the old Indian Spring Country Club.
- 6 ft
The upper portion of the Northwest Branch Trail is flooded. Lowland flooding begins along the creek but is affecting nothing other than the trail.
Highest crests on record
| Date | Level | Flow |
|---|---|---|
| Jun 21, 1972 | 15.89 ft | 11,000 cfs |
| Jun 25, 2006 | 13.61 ft | 9,140 cfs |
| Apr 29, 2014 | 12.26 ft | 7,530 cfs |
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