TauDEM, developed by Utah State University is a set of tools to extract and analyze hydrologic information from topography as represented by a DEM. TauDEM is a set of standalone command…
TauDEM, developed by Utah State University is a set of tools to extract and analyze hydrologic information from topography as represented by a DEM. TauDEM is a set of standalone command…
In HEC-RAS 2D, the terrain created from LiDAR DEM often does not have enough details for areas located within a river channel. For better modeling purpose, normally a river bathymetry…
A storm water pump station (Figure 1) is needed in low areas of a drainage system where drainage by gravity is not possible, such as a depressed roadway segment. Pump…
In hydrologic modeling, "nested" storm distributions are widely used such as SCS Type I, IA, II, III, or the frequency storm in HEC-HMS. One of the advantages of a "nested"…
A previous post introduced the design of a detention basin using Modified Rational Method in HydroCAD, and this post is about detention basin design using SCS hydrology in HydroCAD. The…
After a detention basin (a pond in HydoCAD) is added to the model and its storage is defined as explained in here, the next step is to model and design…
A storm water detention basin is usually required for a public or private development project to temporarily store excessive post-development runoff and only release the detained water through control structures…
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…
When performing a watershed delineation in GIS, a DEM usually needs to be pre-processed by "filling" any depressions or sinks (an area lower than its surroundings) to create a hydraulically…
In addition to delineating watersheds (drainage basins) upstream of one or more outlet points using WhiteboxTools' Watershed and UnnestBasins tools as illustrated in this post, WhiteboxTools has three other tools…