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Resolved Issues
HEC-RAS 6.4
Major Issues
| Issue | Description |
|---|---|
| SCS Curve Number Reset Time not set for 1D | The SCS Curve Number reset time is not set to the user-specified value and instead defaults to 24 hours only for 1D cross-sections and storage areas. This works properly for 2D cells. |
| 2D Sediment Cell Manning's Roughness Coefficient | Cell Manning's n is being overwritten by face-averaged values by mistake because the cell Manning’s n value is not initialized correctly. Unfortunately, there is no workaround that utilizes spatially variable roughness values. |
| The Sediment Rating Curve Boundary Condition Converts Concentration Data | If you define a sediment boundary condition with concentration (mg/L) it should not be converted. But versions 6.3.1 and earlier applies a metric-ton conversion increasing the load by about 10%. Work Around: Define your rating curve in Load. |
| The Sediment Rating Curve Calculator Crashes if there is Little or No Internet Connection | In 6.3.1 the sediment rating curve feature tries to connect with the USGS server whether the user expects to download data or not, and the calculator can crash if there is not internet signal or if the signal is weak. 6.4 fixes this issue. |
| Concentration Calculator | When you type a number into the concentation calculator in the Non-Newtonian editor it launches the user support webpage, making it very annoying to use. This has been fixed in 6.4. |
| The Sediment Model Cannot Interpolate Gradations Across A Structure | If you try to interpolate gradations across a structure in the sediment model RAS will crash at runtime with an uninformative runtime error. |
| Multiple Bridge Opening Analysis Data is Lost Upon RAS Mapper Save | When a geometry is saved in RAS Mapper the Multiple Opening Analysis Data is lost. |
| Calibration Regions n values not being applied appropriately to partially covered cell faces | When using the "Spatially varied Manning's n on face" options for a 2D area, n values set for Calibration Regions are not applied to cell faces that are partially covered by the Calibration Region. Instead, the default n value for the 2D area is used. Note that this bug only impacts cells faces that are partially inside a Calibration Region. |
| Access Violation is Preventing Post Processor from Completing | For some models using and adaptive timestep, the Post Processor fails to finish and instead shows an error that reads "fortl: severe (157): Program Exception - access violation". The only known workaround at this time is to run the simulation without an adaptive timestep. |
| Structures with User Defined Gate Curves are preventing the saving of geometry in RAS Mapper | Some models with structures that utilize user defined gate curves are unable to save geometry edits made in RAS Mapper. When attempting to save an error message will appear: "Error reading geometry data from file" |
| Reference Lines - 1D Only crash | Reference lines are not allowed in a 1D only model. A runtime crash will ensue for models that have 1D elements only and Reference Lines. |
Period Average to Instantaneous Value Interpolation Shifted Resulting Timeseries 1 Period Later | When period a time series of period average input data is interpolated to instantaneous value data, the resulting times series was shifted a period later. A fix was made in RAS 6.3, but this did not resolve the issue fully. Now, when using period average data the center of the period is used for interpolation to instantaneous value data, eliminating the shift that was occurring. |
Save Geometry from Mapper Changes Junction Lengths | At some junctions, editing and saving the Geometry from RAS Mapper causes the junction lengths to be recomputed and replaced automatically with new values that were inaccurate. Now, junction length computations are accurate, and a user must elect to re-compute Junction Lengths from RAS Mapper. |
Observed Rating Curves Not Plotting on Reference Lines and Cross-Sections Hydrographs | Observed Rating Curves were not plotting on cross-sections and Reference Line hydrographs |
Minor Issues
| Issue Description |
|---|
| Fixed line contour generation failing in some cases when the interval is less than 0 |
| Fixed property tables not recomputing when changing a mesh tolerance. |
| Fixed property tables continuously recomputing if the geometry had a percent impervious or infiltration association at some point but no longer has that association. |
| Fixed being able to edit mesh tolerances without editing the Geometry first. |
| Fixed not writing infiltration properties to 1D elements. |
| Fixed a crash when trying to edit a "Fixed Profile" variable in the RASter Calculator when the profile was "Max" or "Min" |
| Fixed property tables recomputing for meshes that are unchanged since the last property table recompute. |
| Fixed multipart polygon "Explode Polygon" option not deleting original multipart polygon. |
| SA/2D Connections will only convert into 1D structures on layer save only if they cross a river centerline and their connection ends are invalid. |
| Added the turtle back to 3D Viewer. |
| Fixed HEC-RAS made terrain tif input files not respecting vertical scaling option when creating a new RAS terrain. |
| While importing a shapefile, fixed being unable to map Z component of points when a column called "Z" existed in the shapefile. |
| Fixed "Update Legend With View" option not working for stored maps in RAS Mapper. |
| Version 6.3.1 cannot interpolate sediment gradations over a structure. This was fixed in 6.4. |
| The Maximum Water Surface Error maps sometimes erroneously reported large negative numbers. |
| Some models results did not show up in mapper if they crashed even if the user chose to "Commit writes." |
| Fixed SA2D connection results plot not plotting piping breaches correctly when the side slope is 0. |
| Fixed polygon filter routine in RAS Mapper always removing second to last point in polygon. |
| Fixed being unable to export Calculated Layers that had tiff raster input in RAS Mapper. |
| Fixed junctions lengths not computing correctly in RAS Mapper. |
| Fixed the DSS Path selector sometimes not pre-selecting the last path selected. |
| Fixed ras.exe and/or RasPlotDriver.exe hanging after closing HEC-RAS. |
| Fixed hydrograph plotter being unable to plot results that did not run to completion. |
| The rouse-diffusion floodplain deposition method computes appropriate flood-plain available concentrations but does not deposit in many cases. |
| The HD Capacity Calculator only computed the Yang equation in version 6.3.1. This has been fixed. |
| 2D Sediment does not pass sediment through gates |
| Fixed raster calculator script variables not writing the correct result name in the rasscript file. |
| The 1D sediment dredging output generates unrealistically large numbers. |
| Improved speed of cutting Manning's n from calibration regions. |
| Fixed not being able to rename calibration regions in RASMapper |
| Fixed measure tool in RAS Mapper giving unusual profiles when the line intersects a terrain modification |
| Fixed "Compute As Curves (faster)" in the Connection Data Editor becoming "Compute flow each time step" after a RAS Mapper save. |
| The duration columns of each Quasi-Unsteady time-series boundary condition editor initialized with zeros. This has been fixed. |
| Blanks in observed sediment data wrote to the output file and plotted as zeros distorting the plots. This has been fixed so blank observed data write as NANs and do not plot. |
| Fixed large terrains taking longer than they should to process 2D Face profiles while doing 2D property tables. |
| Fixed being unable to zoom when outside terrain extents in the 3D Viewer. |
| Fixed hydrograph plot showing wrong cross section when plotting from RAS Mapper. |
| Fixed RASter Calculator variable selection not indicating a grain class's group. |
| Fixed polygon filter routine in RAS Mapper resetting properties for the filtered polygon. |
| Fixed the RAS Mapper tree going blank after adding a result map. |
| Fixed a crash from attempting to plot Courant map profile. |
| Doing a Project Save As will no longer duplicate geometries in RAS Mapper. |
| Fixed reference lines not working in 1D. |
| In RAS Mapper, splitting a breakline should now copy the properties of the original breakline. |
| Subcell plot should now show the correct profile when it is first opened. |
| Fixed subcell plots not working with multiple plans. |
| Fixed point result maps not giving correct map value in 2D areas when there are multiple 2D areas. |
| Fixed a crash that happens when RAS Mapper is opened without a project and the Profile Lines tab is selected. |
| Fixed 2D Bridges not updating bounding XS profiles from terrain. |
| In RAS Mapper, saving features to ShapefileZ no longer writes nodata at every polyline vertex. |
| Fixed slow view refresh in RAS Mapper if there were many line modifications without a profile. |
| Fixed 2D faces and 1D cross sections not cutting manning's n correctly from calibration regions. |
| Fixed shape files not able to render if one or more shapes in the file is invalid. |
| Fixed a crash when attempting to plot some SA/2D Connection results profile plots when the connection externally connected two 2D areas. |
| Breaklines and refinement regions will no longer provide a one cell protection radius when "Include Breaklines / Refinement Regions" is unchecked in the 2D Flow Area Editor in RAS Mapper. |
| Fixed a crash when trying to search for structures using a River, Reach, and Riverstation. |
| Fixed multiple openings losing multiple opening analysis data on RAS Mapper save. |
| Fixed river reaches losing direct connections to 2D areas and storage areas after saving in RAS Mapper. |
| Fixed tooltips not consistently showing in the tree in RAS Mapper. |
| Fixed some break lines not enforcing when generating points for a mesh in RAS Mapper. |
| Fixed a crash that results from changing an edge line after deleting a river center line in RAS Mapper. |
| Fixed Select All (Ctrl+A) not selecting hydraulic structures correctly in RAS Mapper. |
| Fixed several crashes after attempting to split a river. |
| Fixed a (1) being added to the end of a feature's name if it was pasted or imported. |
| Fixed cell cumulative iteration map not rendering in RAS Mapper. |
| Fixed a crash resulting from drawing calibration regions in RAS Mapper. |
| Fixed error layer reporting XS connected edge lines as errors. |
| Fixed "Create Profile Line Between 2 River Reaches " always showing up when right clicking the map window in RAS Mapper. |
| Fixed Bridges/Culverts structures of type Culvert not being findable in RAS Mapper. |
| Fixed landcover layers showing up repeatedly in RAS Mapper tree if the file does not exist. |
| Fixed junction lengths updating automatically from RAS Mapper saves. |
| Fixed observed data in the hydrograph plotter not showing on XSs that were given a name. |
| "Erosion Parameter" tab under Sediment "Transport Function" options changed to "Adaptation" because the adaptation parameters are applied to both erosion and deposition |