How high is the Delaware River at Belvidere NJ right now?

The Delaware River at Belvidere NJ is currently flowing at 5,370 cubic feet per second with a gage height of 4.84 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Delaware River at Belvidere NJ normal for this time of year?

Current flow is classified as normal for June 11. Today's discharge is at the 55th percentile compared to the long-term historical record at this gauge.

Is the Delaware River at Belvidere NJ at flood stage?

No — the gage height is 17.16 feet below the NWS flood-stage threshold of 22.0 feet.

What is the historical median flow for the Delaware River at Belvidere NJ on June 11?

The long-term median discharge for this date is 4,660 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 2,600 to 13,200 cfs.

Where is the Delaware River at Belvidere NJ stream gauge located?

The Delaware River at Belvidere NJ stream gauge is operated by the USGS in Warren County, NJ on the Delaware River. USGS site number 01446500 (coordinates 40.8264, -75.0825).

Delaware River at Belvidere NJ

USGS Site No: 01446500 • Delaware River • Warren County, NJ

Delaware River at Belvidere NJ on the Delaware River is currently at 5,370 cfs (Normal — 55th percentile for this date) . Gage height: 4.84 ft.

Reading from 1 week ago

Downstream on Delaware River ↓

Delaware River at Riegelsville NJ

5,370

CFS Discharge

4.84

Gage Height (ft)

Normal

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	2,600
25th	Low threshold	3,360
50th (Median)	Normal (median)	4,660
75th	High threshold	8,160	Today: 5,370 cfs
95th	Very High threshold	13,200

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.

10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date	Discharge (CFS)	Gage Ht (ft)
May 29, 2026	5,890	—
May 28, 2026	7,070	—
May 27, 2026	8,390	—
May 26, 2026	9,230	—
May 25, 2026	8,840	—
May 24, 2026	6,190	—
May 23, 2026	5,030	—
May 22, 2026	5,310	—
May 21, 2026	5,810	—
May 20, 2026	6,320	—
May 19, 2026	6,950	—
May 18, 2026	7,630	—
May 17, 2026	8,380	—
May 16, 2026	9,500	—
May 15, 2026	10,300	—
Apr 21, 2026	7,430	—
Apr 20, 2026	6,870	—
Apr 19, 2026	6,580	—
Apr 18, 2026	7,410	—
Apr 17, 2026	6,790	—
Apr 16, 2026	6,320	—
Apr 15, 2026	6,910	—
Apr 14, 2026	7,150	—
Apr 13, 2026	7,880	—
Apr 12, 2026	8,220	—
Apr 11, 2026	9,280	—
Apr 10, 2026	10,300	—
Apr 9, 2026	11,100	—
Apr 8, 2026	12,400	—
Apr 7, 2026	14,200	—

Station Information

USGS Site No: 01446500
State: NJ
County: Warren County
Coordinates: 40.8264, -75.0825
Drainage Area: 4,535 mi²
Datum (ft): 226.2
HUC Code: 020401050603

View on USGS NWIS →

Flood Stage Thresholds

Action Stage: 18.5 ft
Flood Stage: 22.0 ft
Moderate Flood: 24.0 ft
Major Flood: 25.0 ft

Currently 17.16 ft below flood stage.

Recent Extremes

Max discharge: 56,900 cfs

May 10, 2025
Min discharge: 1,560 cfs

Dec 12, 2025
Days at flood stage: 0

Computed from the local daily-values archive.

Nearby Gauges

Spruce Run at Main Street at Glen Gardner NJ
12.0 mi · 7 cfs

Low
Mulhockaway Creek at Van Syckel NJ
13.7 mi · 6 cfs

Very Low
South Branch Raritan River Near High Bridge NJ
14.8 mi · 46 cfs

Low
Spruce Run at Clinton NJ
15.6 mi · 6 cfs

Very Low
South Branch Raritan River at Four Bridges NJ
17.9 mi · 16 cfs

Very Low