USGS Water-Year Summary 2024

02087275 CRABTREE CREEK AT U.S. HIGHWAY 70 AT RALEIGH, NC

LOCATION - Lat 35°50'17", long 78°40'27" referenced to North American Datum of 1983, Wake County, NC, Hydrologic Unit 03020201, on left bank at upstream side of bridge on U.S. Highway 70, 0.6 mi upstream from Mine Creek, 4.4 mi northwest of Raleigh.

DRAINAGE AREA - 97.6 mi².

SURFACE-WATER RECORDS

PERIOD OF RECORD - June 1997 to current year. Unpublished records of gage height for water years 1988 to 1997 are available from the USGS South Atlantic Water Science Center, Raleigh, NC.

GAGE - Water-stage recorder. Elevation of gage is 202.9 ft above NAVD88(2011) Geoid 12B (203.72 ft above NGVD of 1929). Datum was initially provided by City of Raleigh and verified by a Real Time GNSS survey performed on 4/26/2019.

REMARKS - Gage-height records are generally good. Discharge records are generally fair 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 OUTSIDE PERIOD OF RECORD - Flood of June 29, 1973, reached a stage of about 27.69 ft, discharge, about 11,700 ft³/s.

EXTREMES FOR PERIOD OF RECORD - Maximum instantaneous discharge, 11000 cfs, Sep 6, 1996.  Maximum instantaneous gage height, 27.28 ft, Sep 6, 1996. Minimum daily mean discharge, 4.86 cfs, June 13, 2002.

CLIMATOLOGICAL RECORDS

PERIOD OF RECORD - September 2006 to current year.

INSTRUMENTATION - Tipping bucket raingage. Satellite telemetry at station.

REMARKS - Precipitation data collected during freezing periods may not be accurately reflected in daily record.