Delaware And Raritan Canal at Port Mercer NJ

USGS Site No: 01460440 • Delaware and Raritan Canal • Mercer County, NJ

Delaware And Raritan Canal at Port Mercer NJ on the Delaware and Raritan Canal is currently at 147 cfs (Normal — 65th percentile for this date) . Gage height: 0.00 ft.

Reading from

147
CFS Discharge
0.00
Gage Height (ft)
Normal
Flow Condition
N/A
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 135
50th (Median) Normal (median) 141
75th High threshold 151 Today: 147 cfs
95th Very High threshold 162

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.

179 90 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 152 —
May 27, 2026 151 —
May 26, 2026 149 —
May 25, 2026 146 —
May 24, 2026 144 —
May 23, 2026 147 —
May 22, 2026 155 —
May 21, 2026 155 —
May 20, 2026 160 —
May 19, 2026 161 —
May 18, 2026 160 —
May 17, 2026 161 —
May 16, 2026 159 —
May 15, 2026 159 —
Apr 21, 2026 148 —
Apr 20, 2026 149 —
Apr 19, 2026 150 —
Apr 18, 2026 147 —
Apr 17, 2026 148 —
Apr 16, 2026 145 —
Apr 15, 2026 145 —
Apr 14, 2026 146 —
Apr 13, 2026 149 —
Apr 12, 2026 146 —
Apr 11, 2026 147 —
Apr 10, 2026 147 —
Apr 9, 2026 148 —
Apr 8, 2026 140 —
Apr 7, 2026 145 —
Apr 6, 2026 145 —

Station Information

USGS Site No
01460440
State
NJ
County
Mercer County
Coordinates
40.3044, -74.6850
Datum (ft)
0.0
HUC Code
020401050803
View on USGS NWIS →

Recent Extremes

Max discharge
165 cfs
Dec 14, 2025
Min discharge
96 cfs
May 14, 2025

Computed from the local daily-values archive.

Nearby Gauges

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