Mark F Henneberg
Science and Products
Selenium on Sediment in Lower Gunnison River Basin Critical Habitat
The Gunnison Basin Selenium Management Program (SMP) implemented a water-quality monitoring network in 2011 in the lower Gunnison River Basin in Colorado. Selenium (Se) is a trace element that bioaccumulates in aquatic food chains and can cause reproductive failure, deformities, and other harmful effects.
The dissolved concentration of selenium in the water column is not necessarily a...
Real-time Monitoring and Evaluation of Bridge Scour
The Colorado Department of Transportation (CDOT) is tasked with maintaining roadways crossing over large streams and rivers where sediment transport and channel alignment changes can affect the structural stability of bridges. Streambed scour is the leading cause of bridge failure in the United States. The costs associated with restoring damaged structures are substantial, but are less than...
Effects of Urbanization on Salinity and Selenium Loading in Montrose Arroyo, Western Colorado
Salinity and dissolved selenium are known water-quality impairments in the lower Gunnison River watershed of western Colorado. Salinity is a concern because of its adverse effects on agricultural land and equipment, and on municipal and industrial users. The Montrose Arroyo watershed in Montrose, Colorado, contains agricultural and residential areas as well as undeveloped land and has...
Real-time streambed scour monitoring at two bridges over the Gunnison River in western Colorado, 2016–17
The Colorado Department of Transportation maintains roadways crossing over large streams and rivers where sediment transport and channel alignment changes can affect the structural stability of bridges. Structural stability during and immediately after peak streamflow can be assessed by measuring streambed scour; however, placing personnel or...
Henneberg, Mark F.
Computing under-ice discharge: A proof-of-concept using hydroacoustics and the Probability Concept
Under-ice discharge is estimated using open-water reference hydrographs; however, the ratings for ice-affected sites are generally qualified as poor. The U.S. Geological Survey (USGS), in collaboration with the Colorado Water Conservation Board, conducted a proof-of-concept to develop an alternative method for computing under-ice discharge using...
Fulton, John W.; Henneberg, Mark F.; Mills, Taylor J.; Kohn, Michael S.; Epstein, Brian; Hittle, Elizabeth ; Damschen, William C.; Laveau, Christopher D.; Lambrecht, Jason M.; Farmer, William H.
Assessment of dissolved-selenium concentrations and loads in the lower Gunnison River Basin, Colorado, as part of the Selenium Management Program, from 2011 to 2016
The Gunnison Basin Selenium Management Program implemented a water-quality monitoring network in 2011 in the lower Gunnison River Basin in Colorado. Selenium is a trace element that bioaccumulates in aquatic food chains and can cause reproductive failure, deformities, and other harmful effects. This report presents the percentile values of...
Henneberg, Mark F. Cross-Section Geometry and Sediment-Size Distribution Data from Muddy Creek and North Fork Gunnison River below Paonia Reservoir, Colorado, 2015
This data set contains cross-section geometry and sediment-size distribution data collected in the fall of 2015 from Muddy Creek and North Fork Gunnison River below Paonia Reservoir, Colorado. Six cross-sections were surveyed using Real-Time Kinematic Global Navigation Satellite System (RTK-GNSS) methods to document channel geometry below the...
Henneberg, Mark; Richards, Rodney J.; Williams, Cory A. Cross-section geometry and sediment-size distribution data from Muddy Creek and North Fork Gunnison River below Paonia Reservoir, Colorado, 2016
This data set contains cross-section geometry and sediment-size distribution data collected in the fall of 2016 from Muddy Creek and North Fork Gunnison River below Paonia Reservoir, Colorado. Six cross-sections were surveyed using Real-Time Kinematic Global Navigation Satellite System (RTK-GNSS) methods to document channel geometry below the...
Henneberg, Mark; Richards, Rodney J.; Williams, Cory A.
2014 annual summary of the lower Gunnison River Basin Selenium Management Program water-quality monitoring, Colorado
Dissolved-selenium loading analyses of data collected at 18 water-quality sites in the lower Gunnison River Basin in Colorado were completed through water year (WY) 2014. A WY is defined as October 1–September 30. Selenium is a trace element that bioaccumulates in aquatic food chains and can cause reproductive failure, deformities, and other...
Henneberg, Mark F.