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Resolved Issues
HEC-RAS 6.3
Major Issues
| Issue | Description |
|---|---|
Period Average Data Interpolation Issue | A long-standing issue was uncovered that impacted datasets using period average input data. The start of the time window was impacting how period average data was interpolated into instantaneous value data. This issue was causing a time offset to appear in the input hydrographs. This issue has been resolved in version 6.3 and could be a cause for results to differ from previous versions in models using period average data with longer periods. |
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 with new values. |
Save Geometry from Mapper Changes Lateral Structure HW Connection Settings | At some lateral structures, editing and saving the Geometry from RAS Mapper causes the structure's HW connection setting to change from User Specified to Default. |
Bridges In Multiple 2D Areas Prevent Unsteady Flow Simulation from Starting | When there are multiple 2D areas in a model that contain bridges, an error occurs that prevents the simulation from running: "allocatable array is already allocated". |
Weir Breach Not Progressing When Using Normal 2D Equation Overflow Option | If the Normal 2D Equation Overflow Option is used for a Storage Area / 2D Connection and the connection is breached, the breach does to progress as expected. Additionally, breach flow is delayed from reaching the connected storage area until the pipe breach transitions to an overtopping breach. |
Legacy Sediment Hotstart Approach Will Not Be Supported in version 6.3 plus | HEC-RAS has included a new, superior, hotstart option that can simply point to a sediment result file. RAS is dropping the old legacy gradational hotstart. The sediment hotstart will also move from the output options to the computational options. |
Storage Areas Not Receiving Time Series Precipitation Data | Storage areas were not receiving precipitation when a simple time series Precipitation Boundary Condition is used. |
Save Geometry from Mapper Fills in Empty Low Chords at Some Bridges | At some bridges, editing and saving the Geometry from RAS Mapper causes the bridge stationing data to be modified in the Geometry file. This occurred where bridges had empty low chord data. |
Default Max Weir Submergence is Not Set for Inline Structure Created in Mapper | Inline structures that were added from RAS Mapper were not getting the default Max Weir Submergence Ratios set. This prevented the simulation from starting, and the following error was displayed: "Weir maximum submergence ratio is not set". |
Unsteady Simulation Fails for 2D Areas with Large Numbers of Cells | The Unsteady Flow Simulation failed to run for 2D Areas that have a large number of cells (greater than 500K-750K). The current approximate limit is 2 million cells. The resulting error message looks like this: "Error with program: RasUnsteady.exe Process Count = 29 Exit Code = -1073741571". |
Observed Data Not Being Displayed in Stage and Flow Hydrograph Plots | The Stage and Flow Hydrograph Plotter would not plot observed data with computed results for cross-sections that have Node Names. |
Observed Data in SI Units Multiplied by Conversion Upon Each Compute | For models in SI units, observed timeseries data are multiplied by conversion to English units upon each compute. |
Pump Shutdown Time | The Pump Shutdown Time was being ignored. The pump flow was going to zero in one time step. |
Hydrograph Output Interval (DSS) less than a minute and Detailed Output (Post Processor) | Using a Hydrograph Output Interval less than a minute (1 Second to 30 Second) can cause an error when trying to run the Post Processor. |
Ubiquitous Help Launch in Sediment Output Options and BSTEM Material Properties Editors | Any Key Press launched the help webpage on the Sediment Output Editor and the BSTEM Material Properties editor, rather than just F1. |
2D Sediment Model Crashes when using Non-erodible Surfaces | The 2D sediment model can crash when using the non-erodible surface bed material type. |
Breakline Editor Creating Duplicate Refinement Breaklines | The Breakline editor may create duplicate breaklines if the order in the table is changed. Trying to delete duplicates may cause a crash. |
2D Bridge Output Issue | 2D bridges had an output issue that affect both the stage/flow hydrograph plot and the RAS Mapper results. This only affected the output. After the 2D results were computed, the output flows and velocities at some faces were incorrectly being overwritten based on new limits from the 1D bridge curves. This is caused the reported hydrograph flow from the 2D bridge to be lower than the actual flow. In RAS Mapper, the velocities and flows shown at the faces at the centerline of the bridge may also have been lower than the actual flows that were computed. The immediately adjacent faces (either upstream or downstream) were correct for those locations. |
Pumps Pumping to Dry 2D Area | A pumping station pumping flow to a 2D area that was completely dry was not putting any flow into the 2D area. (It was not triggering the flag to cause that 2D area to perform computations). |
Refinement Region Editor Creating Duplicate Refinement Regions | Refinement region editor may create duplicate refinement regions if the order in the table is changed. Trying to delete duplicates may cause a crash. |
Flow Distribution Locations | Flow Distribution Locations set from the plan are not being used -- Set the Flow Distribution Locations in the HTab Editor from the geometry. |
| Pumps Inside of 2D Area - Pump 2X Flow | A pumping station where the inlet and outlet are inside of the same 2D flow area (as opposed to pumping between two different 2D areas) pumped exactly twice the flow that it should. Note: It is pumping twice the flow shown on the pump stage/flow hydrograph output. This issue is present in previous versions (it is not new to v6.2). |
2D Reference Line Flow | A 2D Reference Line was not computing flow (it was showing zero flow). |
Advanced Rules using Reference Line Flow | A 2D Reference Line for rules was not computing flow. (It is computing zero flow). See 2D Reference Line Flow above. This was also true for any 2D advanced rules using reference lines for computing flow. |
| Water Quality with Unsteady Flow | Water quality simulations do not function with unsteady flow hydraulic results. Note: This bug applies to the the previous version 6 releases as well. |
Minor Issues
| Fixed non-georeferenced structures plotting their width incorrectly in RAS Mapper. |
| Fixed snapshots not showing up in RAS Mapper if the plan had not been run before. |
| Fixed high coords not plotting in the RAS Mapper bridge plot. |
| Improved the point editor performance when there are hundreds of thousands of points. |
| Fixed importing terrain modification polygon from shapefile not applying the modification to the terrain. |
| Fixed typo in the bridge method selection dialog for momentum |
| Fixed the rating curve plot in the hydrograph plotter not showing more than 1 plan. |
| Fixed the rating curve plot in the hydrograph plotter not changing when a new plan is selected. |
| Fixed not being able to cancel creating multiple maps in RAS Mapper. |
| Plot Model Boundary Deficiency option should no longer show red when an edge line intersects a 2D area or a storage area |
| Fixed plotting a 2D Connection, Storage Area, Pump station, Boundary Condition Line, Reference Line, and Reference Points not showing the correct node in the Hydrograph plotter. |
| Fixed the Zip Archive feature only allowing the selection of a single terrain. Now, multiple terrains can be packaged in the archived project. |
| Fixed lateral structures made in RAS Mapper not assigning the downstream connection to a 2D area when it should have been doing so. |
| Fixed result maps in RAS Mapper not being able to use Model Boundary Deficiency option if the result contained non-georeferenced lateral structures. |
| Fixed projects with multiple meshes not being able to use the additional 2D maps from the RAS Mapper results map list. |
| Fixed DSS Viewer, and the hydrograph plotter not remembering the size it was set in a prior session. |
| Fixed the dates in hydrograph plotter starting at base output date. |
| Fixed some instances of producing a large GEOTIFF will cause it to become corrupted. |
| Fixed a crash caused by deleting the upstream cross section and saving the geometry in RAS Mapper. |
| Fixed vector-only terrains in RAS Mapper not showing the correct legend with the "Update Legend with View" turned on. |
| Can now use terrains in the raster calculator that violated variable naming conventions. Any terrain name that used to violate variable naming conventions will have an underscore "_" prepended to the variable name. |
| Cumulative precipitation map now displays properly for spatial precipitation on 2D areas. |
| Fixed line terrain modification name not reflecting the true name of the line in the ground line editor. |
| Fixed line terrain modifications always being called "Levee 1" or "Channel 1" by default. |
| In RAS Mapper, saving edge lines that do not intersect any cross sections should no longer cause a crash. |
| Repaired issue with reading stage DSS boundary conditions, and writing them out the the boundary condition file (*.b##) |
| Fixed enforcing breaklines in RAS Mapper taking longer than it should have. |
| Fixed being unable to change default symbologies for map types that had *'s, /'s, ('s, and )'s. |
| Fixed being able to create geometries with the same name in RAS Mapper. |
| HEC-RAS will now do a better job warning about potential landcover mishaps due to bad triangulation. |
| Fixed not being able to bring up 2D Flow Area editor by right clicking a 2D Flow Areas layer. |
| Fixed being unable to set sediment bed material association in RAS Mapper if the only previous sediment material layer was missing. |
| Fixed point time series always showing 0 when the point is over a rectangle/triangle/ellipse/pier vector-only terrain in RAS Mapper. |
| Fixed rare bug where the Hydrograph plotter would crash if animating and switching between the time series plot and the rating curve plot. |
| Rating curve plot in the Hydrograph plotter should animate correctly now. |
| Fixed Reload Data button always being disabled in the Stage and Flow Hydrograph Plotter. |
| Any Key Press launched the help webpage on the Sediment Output Editor. This was fixed to only F1. |
| Improved how RAS Mapper computes upstream bridge cross sections if any cross sections in that bridge's reach have an error. |
| Fixed not being able to export 2D sediment maps through Export Layer -> Export Raster. |
| Fixed the 3D Viewer not reading the correct Z-Scaling from the provided terrain. |
| Fixed typo in the radial gate coefficient typical range (0.6-0.8) |
| Fixed Update Legend with View option not being remembered between RAS Mapper sessions. |
| Improved river edge line generation where there are tributaries. |
| Fixed Z values from shapefiles not importing correctly. |
| Fixed reordering refinement regions or breaklines in their respective editors causing the layer to produce a duplicate. |
| Fixed crash from trying to plot Lateral or Inline Structure Data in RAS Mapper. |
| Fixed the hydrograph plotter showing the wrong node when requesting the plot through RAS Mapper. |
| Fixed sanitizing infiltration layer not also sanitizing the linked land cover and soils layers. |
| Added a legend to the sediment rating curve tool gradation plot. |
| Fixed structures always showing in geometries if the Structures Layer was left in a checked state in a 5.0.7 and prior project. |
| 2D Area editor in RAS Mapper should show the same cell count as the Geometry Schematic. |
| Fixed constant and DSS precipitation layers not getting the correct default surface fill. |
| Fixed observed data in the hydrograph plotter not showing on XSs that were given a name. |
| Fixed some result maps in RAS Mapper unconditionally defaulting to a stored map when editing an existing result map. |