How high is the Patuxent River Below Brighton Dam Near Brighton MD right now?

The Patuxent River Below Brighton Dam Near Brighton MD is currently flowing at 12 cubic feet per second with a gage height of 1.25 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Patuxent River Below Brighton Dam Near Brighton MD normal for this time of year?

Current flow is classified as low for October 27. Today's discharge is at the 12th percentile compared to the long-term historical record at this gauge.

Is the Patuxent River Below Brighton Dam Near Brighton MD at flood stage?

No — the gage height is 7.75 feet below the NWS flood-stage threshold of 9.0 feet.

What is the historical median flow for the Patuxent River Below Brighton Dam Near Brighton MD on October 27?

The long-term median discharge for this date is 52 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 9 to 156 cfs.

Where is the Patuxent River Below Brighton Dam Near Brighton MD stream gauge located?

The Patuxent River Below Brighton Dam Near Brighton MD stream gauge is operated by the USGS in Montgomery County, MD on the Patuxent River. USGS site number 01591610 (coordinates 39.1922, -77.0044).

Patuxent River Below Brighton Dam Near Brighton MD

USGS Site No: 01591610 • Patuxent River • Montgomery County, MD

Patuxent River Below Brighton Dam Near Brighton MD on the Patuxent River is currently at 12 cfs (Low — 12th percentile for this date) . Gage height: 1.25 ft.

Reading from 4 months ago

↑ Upstream on Patuxent River

Patuxent River Near Unity, MD

Downstream on Patuxent River ↓

Patuxent River Near Laurel, MD

CFS Discharge

1.25

Gage Height (ft)

Low

Flow Condition

Normal

Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for October 27 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	9
25th	Low threshold	28	Today: 12 cfs
50th (Median)	Normal (median)	52
75th	High threshold	75
95th	Very High threshold	156

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	13	—
May 27, 2026	13	—
May 26, 2026	13	—
May 25, 2026	13	—
May 24, 2026	14	—
May 23, 2026	13	—
May 22, 2026	13	—
May 21, 2026	13	—
May 20, 2026	13	—
May 19, 2026	13	—
May 18, 2026	13	—
May 17, 2026	14	—
May 16, 2026	14	—
May 15, 2026	14	—
Apr 21, 2026	26	—
Apr 20, 2026	27	—
Apr 19, 2026	28	—
Apr 18, 2026	28	—
Apr 17, 2026	29	—
Apr 16, 2026	34	—
Apr 15, 2026	35	—
Apr 14, 2026	35	—
Apr 13, 2026	38	—
Apr 12, 2026	39	—
Apr 11, 2026	39	—
Apr 10, 2026	39	—
Apr 9, 2026	39	—
Apr 8, 2026	43	—
Apr 7, 2026	54	—
Apr 6, 2026	59	—

Station Information

USGS Site No: 01591610
State: MD
County: Montgomery County
Coordinates: 39.1922, -77.0044
Drainage Area: 79 mi²
Datum (ft): 303.0
HUC Code: 020600060105

View on USGS NWIS →

Flood Stage Thresholds

Action Stage: 8.0 ft
Flood Stage: 9.0 ft

Currently 7.75 ft below flood stage.

Recent Extremes

Max discharge: 212 cfs

Jul 22, 2025
Min discharge: 10 cfs

May 15, 2025
Days at flood stage: 0

Computed from the local daily-values archive.

Nearby Gauges

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14.0 mi · 92 cfs

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15.3 mi · 132 cfs

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Dead Run Near Catonsville, MD
15.7 mi · 0 cfs

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East Branch Herbert Run at Arbutus, MD
17.0 mi · 1 cfs

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