RIVER GAUGE · RAMAPO RIVER
Ramapo River at Mahwah
Bergen County, New Jersey
Water level2.74 ft
Flow—
Last readingSep 16, 2026, 4:30 PM UTC (last recorded)
Action7.5 ft
Minor flood8 ft
Moderate flood9 ft
Major flood12 ft
The past week
Loading chart…
What floods at each level
- 12 ft
Major flooding along Route 202 and Route 17 intersection. Road closed. Flooding along Riverview Drive and along Halifax Road and Bridle Path Lane. Flooding on Brakeshoe Place, Brook Street and Catherine Avenue.
- 9 ft
State Route 202 floods downstream. Moderate flooding along Route 202 and Route 17. Water into backyards. Minor flooding along Brakeshoe Place, Brook Street and Catherine Avenue.
- 8 ft
Minor flooding along Route 202.
Highest crests on record
| Date | Level | Flow |
|---|---|---|
| Aug 28, 2011 | 15.78 ft | — |
| Oct 15, 1955 | 12.53 ft | 10,900 cfs |
| Sep 16, 1999 | 12.52 ft | 13,800 cfs |
Flood map
See which streets and areas flood at each water level here. Open the flood map ↗
More on Ramapo River
UpstreamRamapo River at Suffern
DownstreamRamapo River at Pompton Lakes Dam
Get an alert when Ramapo 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.
