Initial-phase investigation of multi-dimensional streamflow simulations in the Colorado River, Moab Valley, Grand County, Utah, 2004

Simulations of flow and prediction of sediment movement in Wymans Run, Cochranton Borough, Crawford County, Pennsylvania

“…To aid in the evaluation and presentation of predicted boundary shear-stress values, Kenney's plots were constructed with colors developed from empirical critical shear-stress values of specific grain sizes. Kenney (2005) presents only critical shear-stress values up to the size of very coarse gravel (32-64 mm or 1.3-2.5 in.). In a similar study, Berenbrock and Tranmer (2008) give critical shear-stress values up to the large cobble size (128-256 mm or 5-10 in.).…”

“…Input data include surface topography (stream and overbank crosssection profiles), streamflow, water-surface elevation at the downstream boundary, and surface-material roughness entered as non-dimensional drag coefficients. FaSTMECH outputs shear-stress values from the two-dimensional velocity solution (Kenney, 2005). Model output from MD_SWMS was exported as point coverages and imported into ArcMap.…”

“…The velocity values for all scenarios at selected cross sections are listed in table 3. Kenney (2005) describes a method of graphically representing shear-stress distribution in a stream in terms of the size of material that may be transported. Boundary shear stress can be used to predict when different sizes of bed material begin to move in the water column by assuming motion is initiated when the predicted boundary stress exceeds the critical shear stress for a particle class size.…”

Hydraulic and geomorphic monitoring of experimental bridge scour mitigation at selected bridges in Utah, 2003-05

“…Average annual peak discharge at USGS streamflow-gaging station 09180500, Colorado River near Cisco, Utah, for the 86-year period of record is 36,300 ft 3 /s. Since 1950, about the beginning of upstream flow regulation, average annual peak discharge is 29,400 ft 3 /s (Kenney, 2005). Nearly all discharges at the Colorado River Bridge at State Road 191 are currently conveyed through only four of the eight spans of the bridge, which has in part lead to the scour identified by UDOT at pier numbers 6 and 7.…”

Observed and forecast flood-inundation mapping application-A pilot study of an eleven-mile reach of the White River, Indianapolis, Indiana

“…The Manning roughness coefficients were converted to drag coefficients by using the following equation (Kenney, 2005):…”