Often it is necessary to re-condition a DEM by burning streams or building walls to force a watershed to be delineated with known streams or boundaries (example: NHD streams or…
Often it is necessary to re-condition a DEM by burning streams or building walls to force a watershed to be delineated with known streams or boundaries (example: NHD streams or…
To apply the HEC-18 Equation 6.2 (Figure 1) to calculate the live-bed contraction scour depth, the bed material particle D50 fall velocity needs to be determined to estimate the coefficient…
Hydraulic Toolbox is a powerful tool to design riprap protection for channel banks, culvert outlets, and bridge scour countermeasures. This post is to focus on bridge pier and abutment scour countermeasure…
The hydraulic opening width (area) of a skewed bridge is less than its unskewed value, which in turn would adversely impact the bridge hydraulic performance. The skew angle is defined…
A bridge can be modeled in 2D domains using a geometry editor similar to 1D bridge geometry editor since HEC-RAS 6.0. HEC-RAS manual defines this method as Simplified 1D/2D Bridge…