Manasquan River at Squankum, NJ
River level and flood forecast · Monmouth County
The river is 5.4 ft below flood stage (8.5 ft).
Flow: 102 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 7 PM. Forecasts change as rain falls and as upstream water arrives.
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An email when the National Weather Service forecasts Manasquan River at Squankum to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 11 ft |
| Moderate flood stage | 10 ft |
| Flood stage | 8.5 ft |
| Action stage | 7 ft |
| Record crest (August 28, 2011) | 13.06 ft |
What floods at each level
From the National Weather Service, highest first.
- 11 ftFlooding expands on Hospital and Lakewood-Allenwood Roads. The roads are closed.
- 10 ftHospital Road and Lakewood-Allenwood Road are subject to partial or full lane closures.
- 8.5 ftWalking and riding trails as well as parking lots are flooded in Allaire State Park.
- 7 ftThe river overflows out of its banks and floods open land in Allaire State Park.
Highest crests on record
- 13.06 ft — August 28, 2011
- 12.45 ft — September 21, 1938
- 10.37 ft — November 8, 1977
- 10.15 ft — October 27, 1943
- 10.13 ft — September 13, 1960
Recent crests: 8.77 ft (January 10, 2024) · 9.51 ft (December 18, 2023) · 9.59 ft (November 25, 2018) · 9.62 ft (May 28, 2018) · 7.7 ft (March 30, 2014)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (SAMN4); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.