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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
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USGS Water-Year Summary 2024
0212393300 WEST BRANCH ROCKY RIVER BELOW MOUTH OF SOUTH PRONG RIVER NEAR CORNELIUS, NC
LOCATION - Lat 35°28'04", long 80°47'25" referenced to North American Datum of 1983, Mecklenburg County, NC, Hydrologic Unit 03040105, on downstream side of box culvert on River Ford Road, 30 ft downstream of mouth of South Prong River, and 4.0 mi southwest of Cornelius.
DRAINAGE AREA - 20.8 mi².
REVISIONS HISTORY - The datum was revised because the original NAVD88 datum was found to be in error by the Level II GNSS survey that was performed by USGS personnel on March 08, 2022.
SURFACE-WATER RECORDS
PERIOD OF RECORD - July 2004 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of the gage is 635.88 ft above North American Datum of 1988. Prior to October 1, 2005, at same site, at datum of 638.42 ft above North American Vertical Datum of 1988. Satellite telemetry at streamgage.
REMARKS - Gage-height records are generally good. Discharge records are generally good except for estimated discharges, which are poor. Additional details on the accuracy of the records can be obtained by contacting the USGS South Atlantic Water Science Center at gs-w-nc_nwisweb_data_inquiries@usgs.gov.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge for period of record, 3,130 ft³/s, June 29, 2013, from rating curve extended above 2,300 ft³/s by logarithmic plotting. Maximum peak stage for period of record, 16.96 ft, June 29, 2013, from crest-stage gage.
Minimum discharge for period of record, 0.07 ft³/s, October 06, 2007, Gage height, Undetermined
Minimum discharge for period of record, 0.07 ft³/s, October 06, 2007, Gage height, Undetermined
