Page Loading - Please Wait...
This gage is monitored in cooperation with the St. Johns River Water Management District.
|Data are tidally affected -- Astronomical tides cause significant cycles of approximately 24.84 hours at this site. Because a different portion of the 24.84-hour tidal cycle is averaged in successive daily (24-hour) computations, a systematic secondary oscillation, unrelated to basin hydrology and having a period of about two weeks may be apparent in daily data.|
LOCATION.--Lat 29°35'46", long 81°41'00", referenced to North American Datum of 1927, in SE 1/4 sec.27, T.10 S., R.26 E., Putnam County, FL, Hydrologic Unit 03080103, near left bank, 400 ft upstream from CSX Transportation bridge, 2.4 mi downstream from Cross-Florida Barge Canal, 3.2 mi northwest of Satsuma, and 89 mi upstream from mouth.
GAGE.--Water-stage recorder, acoustic velocity meter, water-quality monitor, and data-collection platform. Datum of gage is 10.00 ft below NGVD of 1929 and 10.93 ft below NAVD of 1988. Prior to Oct. 1, 1996 at datum 1.00 ft lower.