How high is the Arkansas River Below John Martin Reservoir, Co. right now?

The Arkansas River Below John Martin Reservoir, Co. is currently flowing at 124 cubic feet per second with a gage height of 1.65 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Arkansas River Below John Martin Reservoir, Co. normal for this time of year?

Current flow is classified as normal for October 28. Today's discharge is at the 47th percentile compared to the long-term historical record at this gauge.

What is the historical median flow for the Arkansas River Below John Martin Reservoir, Co. on October 28?

The long-term median discharge for this date is 136 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 18 to 412 cfs.

Where is the Arkansas River Below John Martin Reservoir, Co. stream gauge located?

The Arkansas River Below John Martin Reservoir, Co. stream gauge is operated by the USGS in Bent County, CO on the Arkansas River. USGS site number 07130500 (coordinates 38.0664, -102.9319).

Arkansas River Below John Martin Reservoir, Co.

USGS Site No: 07130500 • Arkansas River • Bent County, CO

Arkansas River Below John Martin Reservoir, Co. on the Arkansas River is currently at 124 cfs (Normal — 47th percentile for this date) . Gage height: 1.65 ft.

Reading from 4 months ago

↑ Upstream on Arkansas River

Arkansas River at Las Animas, Co.

Downstream on Arkansas River ↓

Arkansas River at Lamar, CO

124

CFS Discharge

1.65

Gage Height (ft)

Normal

Flow Condition

N/A

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	18
25th	Low threshold	37
50th (Median)	Normal (median)	136	Today: 124 cfs
75th	High threshold	266
95th	Very High threshold	412

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	83	—
May 27, 2026	93	—
May 26, 2026	93	—
May 25, 2026	94	—
May 24, 2026	96	—
May 23, 2026	96	—
May 22, 2026	95	—
May 21, 2026	96	—
May 20, 2026	96	—
May 19, 2026	95	—
May 18, 2026	94	—
May 17, 2026	94	—
May 16, 2026	95	—
May 15, 2026	94	—
Apr 20, 2026	534	—
Apr 19, 2026	22	—
Apr 18, 2026	21	—
Apr 17, 2026	21	—
Apr 16, 2026	14	—
Apr 15, 2026	1	—
Apr 14, 2026	1	—
Apr 13, 2026	1	—
Apr 12, 2026	1	—
Apr 11, 2026	1	—
Apr 10, 2026	1	—
Apr 9, 2026	1	—
Apr 8, 2026	1	—
Apr 7, 2026	1	—
Apr 6, 2026	1	—
Apr 5, 2026	1	—

Station Information

USGS Site No: 07130500
State: CO
County: Bent County
Coordinates: 38.0664, -102.9319
Drainage Area: 18,494 mi²
Datum (ft): 3,745.7
HUC Code: 110200091001

View on USGS NWIS →

Recent Extremes

Max discharge: 991 cfs

Jul 16, 2025
Min discharge: 1 cfs

Jan 8, 2026

Computed from the local daily-values archive.

Nearby Gauges

Purgatoire River Near Las Animas, CO
14.8 mi · 1 cfs

Very Low
Arkansas River at Las Animas, Co.
15.7 mi · 15 cfs

Low
Arkansas River at Lamar, CO
17.3 mi · 22 cfs

Normal
Arkansas River at LA Junta, CO
33.1 mi · 3,560 cfs

Very High
Arkansas River Near Granada, Co.
33.8 mi · 13 cfs

Normal