USGS Water-Year Summary for Site 07385500

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	00065 Gage height(Mean)

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Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023

07385500 BAYOU TECHE AT ARNAUDVILLE, LA

LOCATION - Lat 30°23'50", long 91°55'50" referenced to North American Datum of 1927, in NW 1/4 sec.63, T.7 S., R.5 E., St. Landry Parish, LA, Hydrologic Unit 08080102, near center of span on downstream side of bridge on State Highway 31, at Arnaudville, and 270 ft upstream from Bayou Fusilier.

DRAINAGE AREA - 1,530 mi². See REMARKS.

SURFACE-WATER RECORDS

PERIOD OF RECORD - February 2022 to current (gage height only). April 1949 to September 2006. October 2005 to September 2006 (gage height only).

GAGE -

Water-stage recorder.

Datum of gage is 1.50 ft. Below NAVD88 GEOID18.

May 11, 1949, nonrecording gage. May 12, 1949 to May 11, 1960, water-stage recorder, May 26, 1960 to Aug. 15, 1961, nonrecording gage. Prior to Feb. 4, 1953, auxiliary nonrecording gage at same site and datum.

REMARKS -

Records good except for estimated mean daily discharges which are poor.

Bayou Teche heads in Bayou Courtableau at Port Barre. At high stages, considerable flow bypasses station by way of Bayou Courtableau at Weirs near Krotz Springs. There is controlled diversion to or from Red River and Old River overflow area through Bayou des Glaises floodgates and to or from West Atchafalaya Floodway through Big Darbonne Bayou culvert and since April 1956 through Bayou Courtableau drainage structure. Since April 1952, floodflow is diverted from Bayou Rapides, drainage area, 76.1 mi², into Bayou Boeuf when stages of Red River make it necessary to close gates at mouth of Bayou Rapides. Teche-Vermilion freshwater diversion canal operational during the year anytime the flow in Bayou Courtableau does not bypass by way of the Courtableau Weirs near Krotz Springs.

EXTREMES FOR PERIOD OF RECORD - Maximum recorded discharge, 4,630 ft³/s, May 24, 1953; maximum gage height, 24.27 ft, May 23, 1953; minimum recorded discharge, 53 ft³/s, Aug. 12, 1965, minimum gage height, 6.78 ft, Oct. 28, 1956.