How high is the Bayou Teche at Keystone L&d near St. Martinville, LA right now?

The Bayou Teche at Keystone L&d near St. Martinville, LA is currently flowing at 407 cubic feet per second with a gage height of 10.30 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Bayou Teche at Keystone L&d near St. Martinville, LA normal for this time of year?

Current flow is classified as normal for June 11. Today's discharge is at the 62th percentile compared to the long-term historical record at this gauge.

What is the historical median flow for the Bayou Teche at Keystone L&d near St. Martinville, LA on June 11?

The long-term median discharge for this date is 323 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 129 to 1,210 cfs.

Where is the Bayou Teche at Keystone L&d near St. Martinville, LA stream gauge located?

The Bayou Teche at Keystone L&d near St. Martinville, LA stream gauge is operated by the USGS in St. Martin Parish, LA on the Bayou Teche. USGS site number 07385700 (coordinates 30.0710, -91.8293).

Bayou Teche at Keystone L&d near St. Martinville, LA

USGS Site No: 07385700 • Bayou Teche • St. Martin Parish, LA

Bayou Teche at Keystone L&d near St. Martinville, LA on the Bayou Teche is currently at 407 cfs (Normal — 62th percentile for this date) . Gage height: 10.30 ft.

Reading from 1 week ago

407

CFS Discharge

10.30

Gage Height (ft)

Normal

Flow Condition

N/A

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	129
25th	Low threshold	228
50th (Median)	Normal (median)	323
75th	High threshold	498	Today: 407 cfs
95th	Very High threshold	1,210

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	527	10.44
May 27, 2026	669	10.60
May 26, 2026	704	10.64
May 25, 2026	800	10.74
May 24, 2026	805	10.75
May 23, 2026	679	10.61
May 22, 2026	698	10.63
May 21, 2026	797	10.74
May 20, 2026	755	10.69
May 19, 2026	653	10.59
May 18, 2026	737	10.68
May 17, 2026	855	10.80
May 16, 2026	1,000	10.94
May 15, 2026	1,150	11.08
Apr 20, 2026	252	10.09
Apr 19, 2026	280	10.13
Apr 18, 2026	218	10.03
Apr 17, 2026	212	10.02
Apr 16, 2026	216	10.03
Apr 15, 2026	222	10.04
Apr 14, 2026	221	10.04
Apr 13, 2026	208	10.01
Apr 12, 2026	205	10.01
Apr 11, 2026	207	10.01
Apr 10, 2026	199	10.00
Apr 9, 2026	205	10.01
Apr 8, 2026	206	10.01
Apr 7, 2026	201	10.00
Apr 6, 2026	233	10.06
Apr 5, 2026	254	10.09

Station Information

USGS Site No: 07385700
State: LA
County: St. Martin Parish
Coordinates: 30.0710, -91.8293
Datum (ft): -2.1
HUC Code: 08080102

View on USGS NWIS →

Recent Extremes

Max discharge: 1,890 cfs

May 10, 2025
Min discharge: 165 cfs

Feb 20, 2026

Computed from the local daily-values archive.

Nearby Gauges

Ruth Canal Near Ruth, LA
12.4 mi · 0 cfs

Unknown
Vermilion River at Surrey St. at Lafayette, LA
14.1 mi · 1,640 cfs

High
Vermilion River at Highway 92 at Milton, LA
15.1 mi · 890 cfs

Very High
Vermillion Rvr North. Of I-10 at Lafayette, LA
16.7 mi · 197 cfs

Normal
Bayou Teche at Adeline Bridge Near Jeanerette, LA
19.7 mi · 727 cfs

Very High