USGS Water-Year Summary 2021
02243960 OCKLAWAHA RIVER AT RODMAN DAM, NEAR ORANGE SPRINGS, FL
LOCATION - Lat 29°30'30", long 81°48'15" referenced to North American Datum of 1983, in NW 1/4 sec.28, T.11 S., R.25 E., Putnam County, FL, Hydrologic Unit 03080102, at downstream side of control structure of Rodman Dam, 8.4 mi east of Orange Springs, and 11.6 mi upstream from mouth.
DRAINAGE AREA - 2,747 mi². includes Paynes Prairie, a diked sinkhole area of 650 mi², approximately, which is noncontributing, except for pumpage.
- WDR FL-77-1: Drainage area.
PERIOD OF RECORD - October 1968 to current year.
GAGE - Water-stage recorder, gate-opening recorder, and data-collection platform. Datum of gage is at NGVD of 1929 (U.S. Army Corps of Engineers bench mark) and 1.11 ft below NAVD of 1988. Auxiliary gage at upstream side of control structure at same datum.
COOPERATION - This gage is monitored in cooperation with the St. Johns River Water Management District. Gate-opening record provided by Cross Florida Greenways and Trails.