How high is the Lehigh River at Bethlehem, PA right now?

The Lehigh River at Bethlehem, PA is currently flowing at 1,690 cubic feet per second with a gage height of 2.00 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Lehigh River at Bethlehem, PA normal for this time of year?

Current flow is classified as normal for June 11. Today's discharge is at the 43th percentile compared to the long-term historical record at this gauge.

Is the Lehigh River at Bethlehem, PA at flood stage?

No — the gage height is 14.00 feet below the NWS flood-stage threshold of 16.0 feet.

What is the historical median flow for the Lehigh River at Bethlehem, PA on June 11?

The long-term median discharge for this date is 1,850 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 947 to 3,950 cfs.

Where is the Lehigh River at Bethlehem, PA stream gauge located?

The Lehigh River at Bethlehem, PA stream gauge is operated by the USGS in Lehigh County, PA on the Lehigh River. USGS site number 01453000 (coordinates 40.6154, -75.3788).

Lehigh River at Bethlehem, PA

USGS Site No: 01453000 • Lehigh River • Lehigh County, PA

Lehigh River at Bethlehem, PA on the Lehigh River is currently at 1,690 cfs (Normal — 43th percentile for this date) . Gage height: 2.00 ft.

Reading from 1 week ago

↑ Upstream on Lehigh River

Lehigh River at Walnutport, PA

Downstream on Lehigh River ↓

Lehigh River at Glendon, PA

1,690

CFS Discharge

2.00

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	947
25th	Low threshold	1,270
50th (Median)	Normal (median)	1,850	Today: 1,690 cfs
75th	High threshold	2,590
95th	Very High threshold	3,950

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 28, 2026	1,990	—
May 27, 2026	2,330	—
May 26, 2026	2,570	—
May 25, 2026	2,800	—
May 24, 2026	2,930	—
May 23, 2026	1,550	—
May 22, 2026	1,410	—
May 21, 2026	1,450	—
May 20, 2026	1,500	—
May 19, 2026	1,490	—
May 18, 2026	1,500	—
May 17, 2026	1,700	—
May 16, 2026	1,950	—
May 15, 2026	1,970	—
Apr 21, 2026	1,600	—
Apr 20, 2026	1,810	—
Apr 19, 2026	1,650	—
Apr 18, 2026	1,570	—
Apr 17, 2026	1,690	—
Apr 16, 2026	1,710	—
Apr 15, 2026	1,790	—
Apr 14, 2026	1,790	—
Apr 13, 2026	1,690	—
Apr 12, 2026	1,730	—
Apr 11, 2026	1,880	—
Apr 10, 2026	2,210	—
Apr 9, 2026	2,400	—
Apr 8, 2026	2,560	—
Apr 7, 2026	2,680	—
Apr 6, 2026	2,480	—

Station Information

USGS Site No: 01453000
State: PA
County: Lehigh County
Coordinates: 40.6154, -75.3788
Drainage Area: 1,279 mi²
Datum (ft): 210.3
HUC Code: 02040106

View on USGS NWIS →

Flood Stage Thresholds

Action Stage: 12.0 ft
Flood Stage: 16.0 ft
Moderate Flood: 20.0 ft
Major Flood: 22.0 ft

Currently 14.00 ft below flood stage.

Recent Extremes

Max discharge: 11,500 cfs

May 10, 2025
Min discharge: 490 cfs

Oct 29, 2025
Days at flood stage: 0

Computed from the local daily-values archive.

Nearby Gauges

Delaware River at Riegelsville NJ
10.0 mi · 7,350 cfs

Normal
Pohatcong Crk at Creek Road near Carpentersville NJ
11.1 mi · 26 cfs

Low
Musconetcong River Near Bloomsbury NJ
17.1 mi · 143 cfs

Normal
Delaware River at Belvidere NJ
21.3 mi · 5,370 cfs

Normal
Mulhockaway Creek at Van Syckel NJ
21.6 mi · 6 cfs

Very Low