mongaup river

Mongaup River River Levels

River flows across 2 streamgages of the Mongaup River

Last Updated: November 8, 2025


Total streamflow across the Mongaup River was last observed at 165 cfs, and is expected to yield approximately 328 acre-ft of water today; about 42% of normal. River levels are low and may signify a drought. Average streamflow for this time of year is 394 cfs, with recent peaks last observed on 2021-10-28 when daily discharge volume was observed at 4,956 cfs.

Maximum discharge along the river is currently at the Mongaup River Near Mongaup Ny reporting a streamflow rate of 119 cfs. However, the streamgauge with the highest stage along the river is the Mongaup River At Mongaup Valley Ny with a gauge stage of 3.05 ft. This river is monitored from 2 different streamgauging stations along the Mongaup River, the highest being situated at an altitude of 1,069 ft, the Mongaup River At Mongaup Valley Ny.

Last Updated 2025-11-08
Discharge Volume 328 ACRE-FT
Streamflow 165.4 cfs
+2.0 cfs (+1.22%)
Percent of Normal 42.03%
Maximum 4,956.0 cfs
2021-10-28
Seasonal Avg 394 cfs
       
River Streamflow Levels
Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Mongaup River At Mongaup Valley Ny
USGS 01432900
46 cfs 3.05 ft 0
Mongaup River Near Mongaup Ny
USGS 01433500
119 cfs 1.39 ft 1.71
Seasonal Discharge Comparison
Maximum Streamflow Discharge
Streamflow Elevation Profile

Mongaup River is a stream in the U.S. state of New York. It is a tributary to the Delaware River.
Mongaup is a name derived from an Indian language meaning perhaps "dancing feather" or "huckeberry valley". Variant spellings have been "Mangawping River", "Mingwing River", "Mon-gaw-ping River" and "Mongaap River".