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- 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.
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USGS Water-Year Summary 2024
07352820 Grand Bayou Reservoir at spillway nr Coushatta, LA
LOCATION - Lat 31°59'55.64", long 93°12'47.76" referenced to North American Datum of 1983, Red River Parish, LA, Hydrologic Unit 11140209, located on a 12' x 12' wooden platform 140 feet west of the Grand Bayou Reservoir spillway near Coushatta, Louisiana.
SURFACE-WATER RECORDS
PERIOD OF RECORD - May 7, 2013 to current year.
GAGE - Water-stage recorder. Datum of gage is 93.34 above NAVD88 (GEOID18) EPOCH 2010.0000. Satellite telemetry at station.
COOPERATION - Louisiana Department of Transportation and Development.
REMARKS - Reservoir is formed on Grand Bayou by concrete spillway and earthfill dam. The crest of the spillway is 45.13 ft gage datum, 138.47 ft. above NAVD of
1988. Reservoir is used for water supply and recreation.
