Blackstone River at Northbridge, MA

USGS Site No: 01110500 • Blackstone River • Worcester County, MA

Blackstone River at Northbridge, MA on the Blackstone River is currently at 1,000 cfs (Very High — 101th percentile for this date) . Gage height: 3.28 ft.

Reading from

1,000
CFS Discharge
3.28
Gage Height (ft)
Very High
Flow Condition
Normal
Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for June 11 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.

Percentile Label CFS Threshold Today's Flow
10th Very Low threshold 120
25th Low threshold 146
50th (Median) Normal (median) 186
75th High threshold 291
95th Very High threshold 633

30-Day Hydrograph

Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.

1.8k 923 0 cfs Apr 6 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 — 3.42
May 27, 2026 — 3.54
May 26, 2026 — 3.72
May 25, 2026 — 3.98
May 24, 2026 — 3.67
May 23, 2026 — 3.55
May 22, 2026 — 3.50
May 21, 2026 — 3.41
May 20, 2026 — 3.63
May 19, 2026 — 3.45
May 18, 2026 — 3.49
May 17, 2026 — 3.62
May 16, 2026 — 3.79
May 15, 2026 — 4.07
Apr 21, 2026 — 3.69
Apr 20, 2026 — 3.75
Apr 19, 2026 — 3.76
Apr 18, 2026 — 3.82
Apr 17, 2026 — 3.89
Apr 16, 2026 — 3.97
Apr 15, 2026 — 3.69
Apr 14, 2026 — 3.56
Apr 13, 2026 — 3.48
Apr 12, 2026 — 3.51
Apr 11, 2026 — 3.53
Apr 10, 2026 — 3.58
Apr 9, 2026 — 3.61
Apr 8, 2026 — 3.66
Apr 7, 2026 — 3.69
Apr 6, 2026 — 3.77

Station Information

USGS Site No
01110500
State
MA
County
Worcester County
Coordinates
42.1537, -71.6520
Drainage Area
141 mi²
Datum (ft)
254.3
HUC Code
01090003
View on USGS NWIS →

Flood Stage Thresholds

Action Stage
8.0 ft
Flood Stage
9.0 ft
Moderate Flood
12.0 ft
Major Flood
14.0 ft

Currently 5.72 ft below flood stage.

Nearby Gauges

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