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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.
- 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
0738022395 BLACK BAYOU AT STATE HIGHWAY 621 NEAR PRAIRIEVILLE, LA
LOCATION - Lat 30°16'10", long 90°55'01" referenced to North American Datum of 1983, Ascension Parish, LA, Hydrologic Unit 08070204, on downstream side of bridge on State Highway 621, 1.7 mi from the intersection of State Highway 61 and State Highway 44 in Gonzales.
DRAINAGE AREA - Not Determined.
SURFACE-WATER RECORDS
PERIOD OF RECORD - November 1997 to current year.
GAGE - Water-stage recorder. Datum of gage is NAVD 88.
REMARKS - Stage affected by wind and tide. Rain gage at station.
EXTREMES FOR PERIOD OF RECORD - Maximum gage height, 9.97 ft, Aug. 29, 2012; minimum recorded gage height, -0.64 ft, Dec, 20, 2004.
