How high is the Heart River near Mandan, ND right now?

The Heart River near Mandan, ND is currently flowing at 48 cubic feet per second with a gage height of 9.19 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Heart River near Mandan, ND normal for this time of year?

Current flow is classified as low for June 11. Today's discharge is at the 17th percentile compared to the long-term historical record at this gauge.

Is the Heart River near Mandan, ND at flood stage?

No — the gage height is 17.81 feet below the NWS flood-stage threshold of 27.0 feet.

What is the historical median flow for the Heart River near Mandan, ND on June 11?

The long-term median discharge for this date is 120 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 32 to 1,110 cfs.

Where is the Heart River near Mandan, ND stream gauge located?

The Heart River near Mandan, ND stream gauge is operated by the USGS in Morton County, ND on the Heart River. USGS site number 06349000 (coordinates 46.8339, -100.9746).

Heart River near Mandan, ND

USGS Site No: 06349000 • Heart River • Morton County, ND

Heart River near Mandan, ND on the Heart River is currently at 48 cfs (Low — 17th percentile for this date) . Gage height: 9.19 ft.

Reading from 1 week ago

↑ Upstream on Heart River

Heart River at Stark Bridge Near Judson, ND

CFS Discharge

9.19

Gage Height (ft)

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	32
25th	Low threshold	65	Today: 48 cfs
50th (Median)	Normal (median)	120
75th	High threshold	270
95th	Very High threshold	1,110

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	47	9.18
May 27, 2026	52	9.22
May 26, 2026	61	9.29
May 25, 2026	66	9.34
May 24, 2026	69	9.36
May 23, 2026	68	9.35
May 22, 2026	68	9.36
May 21, 2026	67	9.35
May 20, 2026	69	9.36
May 19, 2026	73	9.39
May 18, 2026	74	9.40
May 17, 2026	74	9.40
May 16, 2026	78	9.43
May 15, 2026	93	9.54
Apr 21, 2026	—	10.39
Apr 20, 2026	241	10.43
Apr 19, 2026	256	10.50
Apr 18, 2026	279	10.61
Apr 17, 2026	275	10.59
Apr 16, 2026	268	10.56
Apr 15, 2026	270	10.57
Apr 14, 2026	273	10.58
Apr 13, 2026	279	10.61
Apr 12, 2026	289	10.66
Apr 11, 2026	302	10.72
Apr 10, 2026	298	10.70
Apr 9, 2026	307	10.74
Apr 8, 2026	304	10.73
Apr 7, 2026	297	10.69
Apr 6, 2026	292	10.67

Station Information

USGS Site No: 06349000
State: ND
County: Morton County
Coordinates: 46.8339, -100.9746
Drainage Area: 3,310 mi²
Datum (ft): 1,639.5
HUC Code: 10130203

View on USGS NWIS →

Flood Stage Thresholds

Action Stage: 25.0 ft
Flood Stage: 27.0 ft
Moderate Flood: 33.0 ft
Major Flood: 38.0 ft

Currently 17.81 ft below flood stage.

Recent Extremes

Max discharge: 1,420 cfs

May 23, 2025
Min discharge: 20 cfs

May 14, 2025
Days at flood stage: 0

Computed from the local daily-values archive.

Nearby Gauges

Missouri River at Bismarck, ND
7.4 mi · 18,300 cfs

Low
Burnt Creek Near Bismarck, ND
9.4 mi · 5 cfs

Normal
Hay Creek at Main Avenue at Bismarck, ND
11.5 mi · 2 cfs

Normal
Sweetbriar Creek Near Judson, ND
13.2 mi · 2 cfs

Normal
Heart River at Stark Bridge Near Judson, ND
14.5 mi · 46 cfs

Low