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USGS 02246000 NORTH FORK BLACK CREEK NR MIDDLEBURG, FLA.

 

PROVISIONAL DATA SUBJECT TO REVISION
 
 
 

LOCATION.--Lat 30°06'47", long 81°54'24", in NE1/4 sec.33, T.4 S., R.24 E., Clay County, Hydrologic Unit 03080103, on left bank 0.3 mi upstream from Big Branch, 4 mi northwest of Middleburg, and 7.5 mi upstream from confluence with South Fork.

DRAINAGE AREA.--177 sq.mi.

PERIOD OF RECORD.--October 1931 to current year.

GAGE.--Water-stage recorder and data-collection platform. Datum of gage is 0.62 ft above NGVD of 1929 (levels by U.S. Army Corps of Engineers). Prior to Mar. 31, 1933, nonrecording gage at site 0.4 mi downstream at different datum. Mar. 31, 1933 to Apr. 28, 1955, nonrecording gage at present site and datum.

REMARKS.--Stage-discharge relation affected by tide on many days.

EXTREMES OUTSIDE PERIOD OF RECORD.--Flood in June 1919 reached a stage of 25.3 ft, from information by local resident, discharge 15,000 ft3/s.


  
 

(1-31) 		 

Discharge, cubic feet per second
Most recent value: 97   11-19-2004  14:00
Graph of Discharge, cubic feet per second
Download a presentation-quality graph Parameter Code 00060; DD 01
Daily mean flow statistics for 11/19 based on 72 years of record in ft3/sec
Current Flow Minimum Mean Maximum 80 percent exceedance 50 percent exceedance 20 percent exceedance
97  5.6 84.9 546 27.0 49.5 91.8

Percent exceedance means that 80, 50, or 20 percent of all daily mean flows for 11/19 have been greater than the value shown.

Gage height, feet
Most recent value: 1.82   11-19-2004  14:00
Graph of Gage height, feet
Download a presentation-quality graph Parameter Code 00065; DD 02
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Retrieved on 2004-11-19 15:00:15 EST
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