How high is the Merrimack River at Franklin Junction, NH right now?

The Merrimack River at Franklin Junction, NH is currently flowing at 3,570 cubic feet per second with a gage height of 6.51 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Merrimack River at Franklin Junction, NH normal for this time of year?

Current flow is classified as high for October 28. Today's discharge is at the 80th percentile compared to the long-term historical record at this gauge.

Is the Merrimack River at Franklin Junction, NH at flood stage?

No — the gage height is 9.49 feet below the NWS flood-stage threshold of 16.0 feet.

What is the historical median flow for the Merrimack River at Franklin Junction, NH on October 28?

The long-term median discharge for this date is 1,560 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 701 to 6,160 cfs.

Where is the Merrimack River at Franklin Junction, NH stream gauge located?

The Merrimack River at Franklin Junction, NH stream gauge is operated by the USGS in Merrimack County, NH on the Merrimack River. USGS site number 01081500 (coordinates 43.4229, -71.6529).

Merrimack River at Franklin Junction, NH

USGS Site No: 01081500 • Merrimack River • Merrimack County, NH

Merrimack River at Franklin Junction, NH on the Merrimack River is currently at 3,570 cfs (High — 80th percentile for this date) . Gage height: 6.51 ft.

Reading from 4 months ago

Downstream on Merrimack River ↓

Merrimack River near Goffs Falls, Below Manchester, NH

3,570

CFS Discharge

6.51

Gage Height (ft)

High

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	701
25th	Low threshold	1,110
50th (Median)	Normal (median)	1,560
75th	High threshold	2,680
95th	Very High threshold	6,160	Today: 3,570 cfs

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	4,380	—
May 27, 2026	5,040	—
May 26, 2026	5,720	—
May 25, 2026	4,420	—
May 24, 2026	3,450	—
May 23, 2026	3,630	—
May 22, 2026	3,940	—
May 21, 2026	4,590	—
May 20, 2026	5,280	—
May 19, 2026	6,390	—
May 18, 2026	8,430	—
May 17, 2026	12,000	—
May 16, 2026	15,400	—
May 15, 2026	11,600	—
Apr 21, 2026	6,100	—
Apr 20, 2026	7,110	—
Apr 19, 2026	6,420	—
Apr 18, 2026	8,280	—
Apr 17, 2026	7,950	—
Apr 16, 2026	7,380	—
Apr 15, 2026	6,850	—
Apr 14, 2026	4,560	—
Apr 13, 2026	3,750	—
Apr 12, 2026	4,170	—
Apr 11, 2026	4,020	—
Apr 10, 2026	4,100	—
Apr 9, 2026	4,490	—
Apr 8, 2026	5,100	—
Apr 7, 2026	6,220	—
Apr 6, 2026	7,370	—

Station Information

USGS Site No: 01081500
State: NH
County: Merrimack County
Coordinates: 43.4229, -71.6529
Drainage Area: 1,507 mi²
Datum (ft): 250.6
HUC Code: 01070002

View on USGS NWIS →

Flood Stage Thresholds

Action Stage: 14.0 ft
Flood Stage: 16.0 ft
Moderate Flood: 22.0 ft
Major Flood: 28.0 ft

Currently 9.49 ft below flood stage.

Recent Extremes

Max discharge: 15,400 cfs

May 16, 2026
Min discharge: 330 cfs

Oct 17, 2025
Days at flood stage: 0

Computed from the local daily-values archive.

Nearby Gauges

Winnipesaukee River at Tilton, NH
3.5 mi · 1,630 cfs

Very High
Blackwater River Near Webster, NH
8.9 mi · 248 cfs

High
Smith River Near Bristol, NH
11.0 mi · 108 cfs

Normal
Warner River at Davisville, NH
12.5 mi · 162 cfs

Normal
Contoocook River below Hopkinton Dam at West Hopkinton, NH
16.6 mi · 478 cfs

Normal