Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

Click to hideNews Bulletins

Water-Year Summary for Site 08156800

Click to hide Water-Year Summary instructions and information
  • 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.
  • For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
  • Not all sites have reports available for every water year.
Available Parameters
00060 Discharge(Max.,Mean,Min.)  
00065 Gage height(Max.,Mean,Min.)  

Water year 2024: 2024-10-01 to 2025-09-30
 
Print this page
USGS Water-Year Summary 2024
08156800 Shoal Creek at 12th Street, Austin, TX
LOCATION - Lat 30°16'35", long 97°45'00" referenced to North American Datum of 1927, Travis County, TX, Hydrologic Unit 12090205, on left bank at downstream side of bridge at 12th Street, and 0.6 mi west of the State Capitol Building in Austin.
DRAINAGE AREA - 12.3 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - Nov. 1974 to Mar. 1975 (periodic discharge measurements, and associated peak discharges along with annual maximum), Apr. 1975 to Sept. 1984 (peak discharges greater than base discharge), Oct. 1984 to current year.
GAGE -

Water-stage recorder. Satellite telemetry at station.

Datum of the gage: 455.45 ft NAVD88 based on a Level 2 Static GNSS survey processed through OPUS, Ref Frame NAD83 (2011)(EPOCH:2010.0000) ITRF2014 (EPOCH:2024.6032) and Geoid 18. The survey was completed on August 8th, 2024, while occupying a TRM referenced to local gage datum via differential levels. 

Prior to 8/8/2024, the datum of gage was 455.33 ft NGVD29. 

REMARKS - Records fair except those daily discharges below 1 ft³/s, which are poor. No known regulation or diversions. No flow at times. Some records listed in the "Period of Record" for surface water and water quality may not be available electronically.
WATER-QUALITY RECORDS
PERIOD OF RECORD - CHEMICAL DATA: Jan. 1975 to Dec. 2002, Oct. 2004 to May 2018. BIOCHEMICAL DATA: Jan. 1975 to Dec. 2002, Oct. 2004 to May 2018. RADIOCHEMICAL DATA: Apr. 1980 to June 1981. PESTICIDE DATA: Jan. 1975 to Feb. 1985, Jan. 1993 to May 1996, Mar. 2002 to June 2002, Jan. 2007 to May 2008. SEDIMENT DATA: Mar. 1999 to Mar. 2010.