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Manalapan Brook near Brick Township, NJ

River21.4 mi

Around here

Around Manalapan Brook

5 mi

Data Source: Recreation.gov · Source: USGS GNIS · Public land: USGS PAD-US

About this river

Manalapan Brook is a 21.4 mile river near Benchmark Boat Rentals in New Jersey. Streamflow is measured at the USGS gauge Manalapan Brook at Spotswood NJ (site 01405400). The National Hydrography Dataset places it at stream order 5. Reach geometry comes from the USGS National Hydrography Dataset.

Typical flow by month

1957 to 2026

Manalapan Brook typically runs highest in March, at a median 71 cfs, and lowest in September, at 25 cfs. The highest flow on record for any single day is 3,720 cfs, in 2011.

Show the numbers
Typical flow by month at Manalapan Brook at Spotswood NJ, in cfs
MonthTypical (cfs)Usual range (cfs)
January5841 to 85
February6045 to 87
March7151 to 103
April6547 to 94
May4834 to 70
June3423 to 53
July2819 to 46
August2717 to 42
September2517 to 39
October2920 to 47
November4128 to 64
December5638 to 86

Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 70 years of record. Statistics published by the US Geological Survey for Manalapan Brook at Spotswood NJ (site 01405400). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.

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