USGS Water-Year Summary 2024

02313230 WITHLACOOCHEE RIVER AT INGLIS DAM, NEAR DUNNELLON, FL

LOCATION - Lat 29°00'35", long 82°37'01" referenced to North American Datum of 1927, in SW 1/4 sec.08, T.17 S., R.17 E., Levy County, FL, Hydrologic Unit 03100208, on left bank at upstream side of control structure of Inglis Dam, 3.5 mi southeast of Inglis, 9.8 mi west of Dunnellon, and 11 mi upstream from mouth.

DRAINAGE AREA - 2,020 mi². approximately.

REVISIONS HISTORY - WDR FL-72-3: Drainage area.

SURFACE-WATER RECORDS

PERIOD OF RECORD - June 1964 to September 1969 (gage heights and discharge measurements only), October 1969 to current year.

GAGE - Water-stage recorder, gate-opening recorder, and data-collection platform. Datum of gage is at NGVD of 1929. Prior to July 20, 1971, water-stage recorder at site in forebay of powerhouse of the old Inglis Dam and July 20, 1971, to Aug. 23, 1972, at site in private boat basin on south shore of Lake Rousseau at same datum. Auxiliary gage at downstream side of control structure.

COOPERATION - Gate-opening record provided by Southwest Florida Water Management District.

REMARKS - Prior to October 2011, records include flow of springs, approximately 105 ft³/s, just downstream from control structure; spring flow is considered to be mostly leakage from Lake Rousseau. Flow regulated by manipulation of gages in spillway. Discharge computed from relation between discharge and gate openings. Since December 1969, entire flow diverted below station from old river channel into Cross-Florida Barge Canal, and diversions above station from Lake Rousseau, for boat lockages, through Cross-Florida Barge Canal and for maintaining flow in old river channel through Withlacoochee River Bypass Channel (see station 02313250).