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Cross-Section Geometry at Two Bridges over the Gunnison River in Western Colorado, 2016–17


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Henneberg, M.F., 2018, Cross-section geometry at two bridges over the Gunnison River in western Colorado, 2016–17: U.S. Geological Survey data release,


This dataset contains cross-section surveys of the Gunnison River at Colorado Department of Transportation bridges I-04-K and I-03-A, western Colorado, 2016–17. The surveys were performed using a combination of: Trimble R8 Real-Time Kinematic Global Navigation Satellite System (RTK-GNSS) receiver, a USGS bridge crane with sounding weights, and optical levels. During surveys performed in 2016, a base was established at each bridge using the RTK-GNSS equipment. Subsequent surveys of channel geometry were performed using optical levels for ground surface observations above the water line and sounding weights for streambed observations below the water line, referenced to the base established in 2016. Streambed elevations were interpolated [...]


Point of Contact :
Mark F Henneberg, Southwest Region
Originator :
Mark F Henneberg
Metadata Contact :
Mark F Henneberg
Publisher :
U.S. Geological Survey
SDC Data Owner :
Colorado Water Science Center
USGS Mission Area :
Water Resources
Distributor :
U.S. Geological Survey - ScienceBase

Attached Files

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Data were obtained to document channel geometry at the selected locations.



  • USGS Colorado Water Science Center
  • USGS Data Release Products



Additional Information


Type Scheme Key
DOI doi:10.5066/P92EY47R

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