Blackstone River River Levels

Last Updated: December 4, 2025

The Blackstone River is a waterway in the northeastern United States, stretching 48 miles from Worcester, Mass.


Summary

Total streamflow across the Blackstone River was last observed at 2,122 cfs, and is expected to yield approximately 4,209 acre-ft of water today; about 112% of normal. Average streamflow for this time of year is 1,903 cfs, with recent peaks last observed on 2023-12-19 when daily discharge volume was observed at 29,630 cfs.

Maximum discharge along the river is currently at the Blackstone River At Northbridge reporting a streamflow rate of 1,240 cfs. This is also the highest stage along the Blackstone River, with a gauge stage of 3.72 ft at this location. This river is monitored from 3 different streamgauging stations along the Blackstone River, the highest being situated at an altitude of 260 ft, the Blackstone River At Northbridge.

River Details

Last Updated 2025-12-04
Discharge Volume 4,209 ACRE-FT
Streamflow 2,122.0 cfs
+473.0 cfs (+28.68%)
Percent of Normal 111.54%
Maximum 29,630.0 cfs
2023-12-19
Seasonal Avg 1,903 cfs
       
River Streamflow Levels
Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Blackstone River At Northbridge
USGS 01110500
1240 cfs 3.72 ft 12.73
Blackstone River At Woonsocket
USGS 01112500
992 cfs 3.05 ft 27.02
Blackstone R At Roosevelt St At Pawtucket Ri
USGS 01113895
1130 cfs 1.74 ft 30.18
Seasonal Discharge Comparison
Maximum Streamflow Discharge
Streamflow Elevation Profile

The Blackstone River is a river in the U.S. states of Massachusetts and Rhode Island. It flows approximately 48 mi (80 km) and drains a watershed of approximately 540 sq. mi (1,400 km²). Its long history of industrial use has left a legacy of pollution, and it was characterized by the United States Environmental Protection Agency in 1990 as "the most polluted river in the country with respect to toxic sediments."