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 06701700

Click to hide state-specific text

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(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30

Print this page
USGS Water-Year Summary 2023
LOCATION - Lat 39°08'43.53", long 105°09'36.04" referenced to North American Datum of 1983, in sec.30, T.10 S., R.69 W., Douglas County, CO, Hydrologic Unit 10190002, at center of dam on J. O. Hill Reservoir, 1,300 ft upstream of Shrewsbury Gulch, in town of Westcreek, Colorado.
DRAINAGE AREA - 56.2 mi².
REVISIONS HISTORY - WDR-US-2011: Drainage area.
PERIOD OF RECORD - May 2003 to September 2004 (seasonal records only), April 2005 to September 2015 (annual seasonal-maximum only), April 2016 to September 2021 (seasonal records only) (discontinued).
GAGE - Water-stage recorder with satellite telemetry and concrete weir. Elevation of gage is 7,520 ft above NGVD of 1929, from topographic map. Prior to Aug. 18, 2016, gage located 700 ft upstream from present site, at present datum. Natural flow of stream was affected by a 24-inch pipe diversion through dam, which bypassed the spillway and could carry at least 16 ft³/s flow. Peak discharge was likely higher due to additional bypass-pipe diversion. As of Aug. 18, 2016, computed flows include spillway and diversion flows.
REMARKS - Water year 2016; no estimated daily discharges. Records fair. Water year 2017; no estimated daily discharges. Records fair. Water year 2018; no estimated daily discharges. Records fair. Water year 2019; no estimated daily discharges. Records fair. Water year 2020; no estimated daily discharges. Records fair. Water year 2021; records fair except for estimated daily discharges, which are poor.
EXTREMES OUTSIDE PERIOD OF RECORD - Maximum flood known, 2,020 ft³/s, May 7, 1973, on basis of slope-area measurement of peak flow made at location about 1.0 mi downstream from present site, caused by failure of two upstream dams.