Eastern Colorado Crest-Stage Gage Network

Study Area: Eastern Colorado
Period of Project: October 2014 - December 2016
Project Number: RE00FZ2
Project Chief: Michael Kohn, P.E.
Cooperator: Colorado Department of Transportation

BACKGROUND:

The U.S. Geological Survey StreamStats program can be used to estimate the magnitude of various annual exceedance probability floods such as the 50-year or 100-year floods at locations where no streamgage data are available.  In eastern Colorado where few streamgages exist, the regional-flood equations used in StreamStats have large uncertainties. In order to reduce these uncertainties, the U.S. Geological Survey (USGS), in cooperation with Colorado Department of Transportation, is operating a crest-stage gage network at 10 culverts in eastern Colorado. In addition to improving the regional-flood equations used by StreamStats, the data collected at these gages can be used to estimate the magnitude of various annual exceedance probability floods such as the 50-year or 100-year flood should these culverts need replacing.  Each crest-stage gage contains pressure transducers that record the water-surface elevation upstream and downstream from the culvert; the water-surface elevation is then used to determine the streamflow through the culvert. This study will provide 2 years of peak-streamflow data at 10 sites in eastern Colorado and data will be stored in the USGS National Water Information System database.

OBJECTIVES:

  • Collect peak-streamflow data at 10 sites in the Plains hydrologic region of eastern Colorado using crest-stage gages.

Crest-Stage Gage Sites:

  • 06752285     BOXELDER CREEK TRIB AT HWY 36 NEAR WATKINS, CO
  • 06756350     SAND CREEK AT HIGHWAY 14 NEAR BRIGGSDALE, CO
  • 06758400     GOOSE CREEK NEAR HOYT, CO
  • 06760230     UNNAMED CREEK AT HIGHWAY 71 NEAR STONEHAM, CO
  • 06822210     DUCK CREEK AT I-70 NEAR FLAGLER, CO
  • 06822550     UNNAMED CREEK AT HIGHWAY 63 NEAR ANTON, CO
  • 06822585     UNNAMED CREEK AT HIGHWAY 61 NEAR OTIS, CO
  • 06822700     RED WILLOW CREEK AT HIGHWAY 59 NEAR YUMA, CO
  • 06826680     BEAVER CREEK AT I-70 NEAR BURLINGTON, CO
  • 06855001     BIG TIMBER CRK AT HWY 385 NEAR CHEYENNE WELLS, CO
(Click images for larger view)
USGS crest-stage gage

A typical USGS crest-stage gage used to measure peak stage and discharge in streams.
Photo by: Michael Kohn (September 9, 2015)

Eastern Colorado Crest-Stage Gages

The location of the 10 crest-stage gages in eastern Colorado with the USGS station number.