USGS Water-Year Summary 2021
07375000 TCHEFUNCTE RIVER NEAR FOLSOM, LA
LOCATION - Lat 30°36'57", long 90°14'55" referenced to North American Datum of 1927, in SE 1/4 NE 1/4 sec.13, T.5 S., R.9 E., St. Tammany Parish, LA, Hydrologic Unit 08090201, near center of span on downstream side of bridge on State Highway 40, 1.2 mi upstream from Bull Branch, and 3.6 mi southwest of Folsom.
DRAINAGE AREA - 103 mi² of which 7.50 mi² probably is noncontributing. Total drainage area for extreme floods is 103 mi².
- WSP 1057: 1944(M), 1945. WDR LA-83-2: 1949(M), 1953(M), 1961(M), 1962(M), 1973(M), 1977(M). Period of Record date of April 5, 1983 and gage height of 24.14 published in error from WDR LA-1983-2 to WRD LA-2013.
PERIOD OF RECORD - October 1943 to current year. Prior to January 1944, monthly discharge only, published in WSP 1311. Prior to October 1954, published as Chefuncta River near Folsom. Prior to October 2000, published as Tchefuncta River near Folsom.
GAGE - Water-stage recorder. Datum of gage is 61.13 feet above NAVD88 GEOID12b EPOCH2010.0000. Prior to June 9, 1944, non-recording gage at same site and datum.