Click
to
hide
Water-Year
Summary
instructions
and
information
- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
073816501 Avoca Island Cutoff south of Morgan City, LA
LOCATION - Lat 29°32'19", long 91°14'45" referenced to North American Datum of 1983, St. Mary Parish, LA, Hydrologic Unit 08090302, site is approximately twelve miles south of Morgan City, LA at the intersection of Bayou Chene and the Atchafalaya River.
DRAINAGE AREA - Indeterminate
REVISIONS HISTORY - Gage height record for the period of Nov. 5, 2014 to Dec. 19, 2018 was revised on Jan. 31, 2019 to reflect gage subsidence.
SURFACE-WATER RECORDS
PERIOD OF RECORD - July 1995 to September 2008(discharge measurements only). October 2008 to Oct 2019(gage heights and discharge measurements).
GAGE - Records poor. Water-stage recorder. Datum of gage is 2.026 feet below NAVD88 GEOID12a.
COOPERATION - U.S. Army Corps of Engineers, New Orleans District.
REMARKS - Discharge measurements and suspended sediment collected as part of GIWW synoptic. Gage height and discharge measurements affected by winds and tide at all stages. Satellite telemetry at station. Site destroyed by barge traffic March 2019. Site discontinued to lack of funding Oct 2019.
EXTREMES FOR PERIOD OF RECORD - Maximum recorded gage height, 6.96 ft; May 29, 2011; Minimum recorded gage height, 1.04 ft; Oct. 29, 2012.
