HEC-RAS 6.5 released

Major Issues

IssueDescription
Advanced Rules - LS Crash with "Out of the System" option

If you have Advanced Rules for Lateral Structures and the Tailwater Connection is "Out of the System", HEC-RAS will crash.  

RASter Calculator - Can Add new Variable

The Add New Variable button is unintentionally grayed out in the RASter Calculator.

2D Sediment Rating Curve Boundary Condition Converted Incorrectly in SI

When modelers used a sediment rating curve as a 2D sediment boundary condition in SI with concentrations instead of loads, HEC-RAS double converted.  The work around is to convert concentrations in the rating curve to loads.  It has been fixed in 6.5.

Sediment Rating Curve Calculator Does not Update Annual Load

The new Annual Load feature in 6.4/6.4.1 does not update based on user decisions.  It computes based on the Duan corrected, non-averaged, initial data input and will not update for clustering, piecewise linear, or other rating curve updates.  There is no work-around in 6.4.1, but this has been fixed for the 6.5 beta release. 

Sediment Rating Curve Calculator is Unit Naïve

The Rating Curve Calculator assumes US Customary Units. This means the labels are wrong and the Load<-->Concentration conversion is incorrect if users import SI data. If users are importing data from the USGS database, this is not an issue, because the tool imports in US Customary. But if users import their own data (through the clipboard) this labels and the concentration conversion will be wrong.  

Floodway Encroachments - Blocked Culverts

Blocked culverts will now no longer stop the unsteady flow analysis simulation from not running.

Floodway Encroachments

Fill Slope on Terrain Modifications and Additional Fill Rise values now saving.

Pump - Advanced Control Rules not saving if editing in RAS Mapper

Pumps Advanced Control Rules (from the Pump Editor in the Geometric Data Editor) are not saving if Geometry is edited in RAS Mapper.  However, you can create advanced Rules in the Unsteady Flow Editor to replace pump logic.

Pump - The total number of Pumping Stations limited to 20

If there are more than 20 pumping stations in the model a  "Program Exception - access violation" will occur at the start of the run.  Additional text will be written out including "1708 Jobinit".  Workaround: Reduce the number of pumping stations to 20.  It would be time consuming and awkward, but it would be possible to replace a pumping station with a lateral structure or a SA 2D connector and then use a georeferenced gate or culvert for the pump.  And then use the Advanced Rules to replicate the pump flow and pump operations.

Hydraulic structures in 2D not checking hydraulic connectivity between cells connected to structure

When weir flow is computed for a structured connected to a 2D area, a profile of the water surface is developed from the cell faces connected to the structure. The development of this profile was not taking into account hydraulic connectivity between cells leading to a less accurate weir flow calculations. 

Culvert Barrels / Gate Openings  - not saving alignment in RAS Mapper

After editing the alignment of an existing Gate/Culvert/Outlet Time Series/Rating Curves for Hydraulics Structures within RAS Mapper, the edits will not be saved. New culverts will save.  

Re-compute of property tables for 2D Area when updating 2D Connections

2D Area hydraulic tables are recomputed during simulation if the 2D Connection Elevations were updated through RAS Mapper. 

Minor Issues

Fixed 2D Bridge results profile plots not working in RASMapper
Fix Terrain raster export/generate new RAS terrain with geometry selected as extent not clipping geometry bounds.
Fixed some instances where multiple Manning's n per face option was causing a crash during property table generation.
Fixed "Reset Default Line Style" button not working correctly in Lines and Symbols editor in our newer plots.
Fixed the 2D flow area property table plot not updating the cell/face list when changing the active mesh to plot.
Fixed "Prior Water Surface" compute option not working with XSs.
Fixed "Use Depth Threshold as Delta from Start" not appearing when adding a new Arrival Time map.
Fixed additional rise not applying to the inside of an encroachment polygon terrain modification.
Fixed exporting structures to shape file not exporting the correct structures.
Fixed using the "multiple plan" option in the profile plot causing a crash if there were reference lines.
Fixed the legend for the 2D sediment results sometimes not reporting units of the result.
Fixed encroachment difference plot showing a difference in areas where it is dry.
RASter Calculator result threw an unhandled exception if it lost connection to the base layers
Encroachment Terrains from old results will no longer be reused for subsequent runs.
Fixed encroachment terrains not having source terrain's modifications on creation.
Fixed right encroachment polygon not following the first cross section line when being generated.
Fixed encroachment polygons not honoring cross section offset when being generated.
Fixed not being able to create a soils layer using ssurgo soils data.
Fixed total gate flow over-summing flows from each gate when there were more than 10 gate openings in the Hydrograph plotter.
Fixed profile plots not reloading when a result updates.
Importing a Sediment File into a New Project generates a "Path/File access error."
Fixed a crash when viewing cross sections in the property table plot.
Fixed Mannings n property tables computes from crashing due to too n many discretizations per face.
Fixed the measure line right click menu sometimes taking a long time show.
Fixed being unable to create a calculated layer if there were no results.
Fixed USGS downloads with many files selected taking a while to start downloading.
The Rating Curve Calculator assumes US Customary Units. This means the labels are wrong and the Load<-->Concentration conversion is incorrect if users import SI data. If users are importing data from the USGS database, this is not an issue, because the tool imports in US Customary. But if users import their own data (through the clipboard) this labels and the concentration conversion will be wrong.
Percent Time Inundated Map Layer legend now shows units of percent, not hours.
The Average Annual Load value in the sediment rating curve did not update in version 6.4 and 6.4.1 when users changed their rating curve assumptions. This has been fixed.
Fixed culvert, gate, time series outlet and rating curve outlet changes not saving correctly after changes were made.
Fixed floodplain being completely filled in for cross sections that had empty rows in unsteady encroachment table.
Fixed RAS Mapper panning when it should bring up a menu while editing.
Fixed Histogram crashing when the map's min value is equal to the max value.
Recomputing 2D meshes in RAS Mapper will now throw an error if a cell has less than 3 faces.
Fixed having to recompute property tables if non-mesh geometric elements were changed.
Fixed "Edit 2D Connection Breakline Properties" in RAS Mapper taking a long time to show.