How high is the Little Lehigh Creek at Tenth St. Branch. at Allentown right now?

The Little Lehigh Creek at Tenth St. Branch. at Allentown is currently flowing at 66 cubic feet per second with a gage height of 2.41 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Little Lehigh Creek at Tenth St. Branch. at Allentown normal for this time of year?

Current flow is classified as very low for June 11. Today's discharge is at the 9th percentile compared to the long-term historical record at this gauge.

Is the Little Lehigh Creek at Tenth St. Branch. at Allentown at flood stage?

No — the gage height is 5.59 feet below the NWS flood-stage threshold of 8.0 feet.

What is the historical median flow for the Little Lehigh Creek at Tenth St. Branch. at Allentown on June 11?

The long-term median discharge for this date is 115 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 74 to 279 cfs.

Where is the Little Lehigh Creek at Tenth St. Branch. at Allentown stream gauge located?

The Little Lehigh Creek at Tenth St. Branch. at Allentown stream gauge is operated by the USGS in Lehigh County, PA on the Little Lehigh Creek. USGS site number 01451650 (coordinates 40.5965, -75.4741).

Little Lehigh Creek at Tenth St. Branch. at Allentown

USGS Site No: 01451650 • Little Lehigh Creek • Lehigh County, PA

Little Lehigh Creek at Tenth St. Branch. at Allentown on the Little Lehigh Creek is currently at 66 cfs (Very Low — 9th percentile for this date) . Gage height: 2.41 ft.

Reading from 1 week ago

↑ Upstream on Little Lehigh Creek

Little Lehigh Creek Near Allentown, PA

CFS Discharge

2.41

Gage Height (ft)

Very Low

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	74	Today: 66 cfs
25th	Low threshold	88
50th (Median)	Normal (median)	115
75th	High threshold	159
95th	Very High threshold	279

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	73	—
May 27, 2026	83	—
May 26, 2026	88	—
May 25, 2026	112	—
May 24, 2026	174	—
May 23, 2026	83	—
May 22, 2026	71	—
May 21, 2026	70	—
May 20, 2026	79	—
May 19, 2026	55	—
May 18, 2026	61	—
May 17, 2026	74	—
May 16, 2026	62	—
May 15, 2026	63	—
Apr 21, 2026	72	—
Apr 20, 2026	86	—
Apr 19, 2026	73	—
Apr 18, 2026	59	—
Apr 17, 2026	60	—
Apr 16, 2026	61	—
Apr 15, 2026	73	—
Apr 14, 2026	88	—
Apr 13, 2026	66	—
Apr 12, 2026	67	—
Apr 11, 2026	69	—
Apr 10, 2026	82	—
Apr 9, 2026	93	—
Apr 8, 2026	74	—
Apr 7, 2026	81	—
Apr 6, 2026	93	—

Station Information

USGS Site No: 01451650
State: PA
County: Lehigh County
Coordinates: 40.5965, -75.4741
Drainage Area: 98 mi²
Datum (ft): 244.9
HUC Code: 02040106

View on USGS NWIS →

Flood Stage Thresholds

Action Stage: 6.0 ft
Flood Stage: 8.0 ft
Moderate Flood: 10.0 ft
Major Flood: 12.0 ft

Currently 5.59 ft below flood stage.

Recent Extremes

Max discharge: 965 cfs

May 31, 2025
Min discharge: 24 cfs

Feb 12, 2026
Days at flood stage: 0

Computed from the local daily-values archive.

Nearby Gauges

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

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

Low
Musconetcong River Near Bloomsbury NJ
22.3 mi · 143 cfs

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

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

Very Low