How high is the Concord River Below River Meadow Brook, at Lowell, MA right now?

The Concord River Below River Meadow Brook, at Lowell, MA is currently flowing at 323 cubic feet per second with a gage height of 4.75 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Concord River Below River Meadow Brook, at Lowell, MA normal for this time of year?

Current flow is classified as normal for October 28. Today's discharge is at the 54th percentile compared to the long-term historical record at this gauge.

Is the Concord River Below River Meadow Brook, at Lowell, MA at flood stage?

No — the gage height is 3.25 feet below the NWS flood-stage threshold of 8.0 feet.

What is the historical median flow for the Concord River Below River Meadow Brook, at Lowell, MA on October 28?

The long-term median discharge for this date is 281 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 80 to 1,390 cfs.

Where is the Concord River Below River Meadow Brook, at Lowell, MA stream gauge located?

The Concord River Below River Meadow Brook, at Lowell, MA stream gauge is operated by the USGS in Middlesex County, MA on the Concord River. USGS site number 01099500 (coordinates 42.6368, -71.3020).

Concord River Below River Meadow Brook, at Lowell, MA

USGS Site No: 01099500 • Concord River • Middlesex County, MA

Concord River Below River Meadow Brook, at Lowell, MA on the Concord River is currently at 323 cfs (Normal — 54th percentile for this date) . Gage height: 4.75 ft.

Reading from 4 months ago

323

CFS Discharge

4.75

Gage Height (ft)

Normal

Flow Condition

Normal

Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for October 28 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	80
25th	Low threshold	143
50th (Median)	Normal (median)	281
75th	High threshold	526	Today: 323 cfs
95th	Very High threshold	1,390

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	347	—
May 27, 2026	364	—
May 26, 2026	357	—
May 25, 2026	335	—
May 24, 2026	310	—
May 23, 2026	320	—
May 22, 2026	336	—
May 21, 2026	325	—
May 20, 2026	315	—
May 19, 2026	341	—
May 18, 2026	378	—
May 17, 2026	412	—
May 16, 2026	406	—
May 15, 2026	378	—
Apr 21, 2026	568	—
Apr 20, 2026	588	—
Apr 19, 2026	595	—
Apr 18, 2026	592	—
Apr 17, 2026	581	—
Apr 16, 2026	537	—
Apr 15, 2026	547	—
Apr 14, 2026	543	—
Apr 13, 2026	548	—
Apr 12, 2026	550	—
Apr 11, 2026	604	—
Apr 10, 2026	651	—
Apr 9, 2026	695	—
Apr 8, 2026	738	—
Apr 7, 2026	774	—
Apr 6, 2026	811	—

Station Information

USGS Site No: 01099500
State: MA
County: Middlesex County
Coordinates: 42.6368, -71.3020
Drainage Area: 400 mi²
Datum (ft): 66.6
HUC Code: 01070005

View on USGS NWIS →

Flood Stage Thresholds

Action Stage: 7.5 ft
Flood Stage: 8.0 ft
Moderate Flood: 10.0 ft
Major Flood: 12.0 ft

Currently 3.25 ft below flood stage.

Recent Extremes

Max discharge: 1,900 cfs

Mar 19, 2026
Min discharge: 39 cfs

Aug 21, 2025
Days at flood stage: 0

Computed from the local daily-values archive.

Nearby Gauges

Merrimack River below Concord River at Lowell, MA
0.7 mi · 7,160 cfs

High
Shawsheen River Near Wilmington, MA
6.5 mi · 18 cfs

Normal
Shawsheen River at Balmoral Street at Andover, MA
8.1 mi · 44 cfs

Normal
Nashoba Brook Near Acton, MA
10.0 mi · 15 cfs

Normal
Hobbs Brook at Mill St near Lincoln, MA
13.9 mi · 0 cfs

Normal