Updated HEC-RAS Version 5.0 Beta Now Available

Written by ironcore | October 1, 2014


HEC has just released an updated beta version of HEC-RAS 5.0.  This is the third and final beta release before the final release due out in January 2015.  This new release takes care of most of the bugs that have been reported and includes some nice new features like spatially varying Manning’s n values for 2D areas, Velocity plotting for 1D and 2D areas, and improved hydraulic structure connections for 2D areas. Please read the new User’s Manual.  It is very well written and informative. 
Please read the release letter below for directions to download the latest version.  As always, if you find bugs or have suggestions for Version 5.0, please submit them to The RAS Solution forum here.
 
Dear HEC-RAS 5.0 Beta tester,
     You are receiving the this email, and a link to an updated version of “HEC-RAS 5.0.0 October, 2014 Beta (with 2D Flow Areas)”, because you are either a previous Beta tester, or you have expressed interest in the new 2-Dimensional modeling capabilities being added to HEC-RAS.  Several new features have been added and many bugs have been fixed since the last Beta release.  The main new features are: Spatially varying Manning’s n values for 2D Flow Areas; Velocity plotting for 1D and 2D areas; and improved hydraulic structure connections for 2D Flow Areas.  There is an updated User’s manual that describes these new features, as well as other changes, that is contained in the self extracting zip file that you will download.  Please read the new User’s manual!  There are also two data sets that come with this setup package that demonstrate most of the aspects of using 2D Flow Areas.  The data set called “Muncie.prj” has an example of how to use spatially varied Manning’s n values for 2D Flow Areas.  Use that data set as a guide, along with the User’s manual to learn how to use this feature. 
Here is the link to the latest version:
http://www.hec.usace.army.mil/misc/files/ras/HEC-RAS_5.0_Beta_2014-10-01.exe
      This link lets you download a self extracting archive file called “HEC-RAS_5.0_Beta_2014-10-01.exe” 
      Download the file to a separate directory and run the self extracting archive file.  The self extracting archive file contains:
            1). The installation setup package called: ” HEC-RAS_5.0_Beta_2014-10-01_Setup.exe”
            2). A updated PDF version of the User’s Manual called “Combine 1D and 2D Modeling with HEC-RAS.pdf”
Here is a separate Link to the new 1D/2D User’s manual, if you want to download it separately:

http://www.hec.usace.army.mil/misc/files/ras/Combined_1D_and_2D_Modeling_with_HEC-RAS.pdf
            3). Two 2D Test Data sets in a directory called “RAS_50 Test Data”
      I provided a link to the updated version of the User’s Manual on how to use the 2D modeling capabilities within HEC-RAS 5.0 Beta (“Combine 1D and 2D Modeling with HEC-RAS.pdf“).  This document has been dramatically expanded.  If you really want to learn how to use the 2D modeling capabilities in HEC-RAS, Please Read This Manual.  I have spent a lot of time working on this document, and I think anyone who currently knows how to use HEC-RAS for 1D unsteady flow modeling will be able to learn how to use the new 2D unsteady flow modeling capabilities with just the software and this document.  Please give me some feedback on this User’s manual if you find mistakes or there is information you feel is missing, or could be explained better.
            There are two example data sets that come with the self extracting zip file: “Muncie.prj” and “BaldEagleDamBrk.prj”.  The Muncie data set is a 1D river with a 2D Flow Area inside of a Levee system.  The levee system is breached and flow goes into the protected area.  The Muncie data set also contains spatially varying Manning’s n values for the 2D Flow Area.  The BaldEagleDamBrk data set has seven different Plans in it.  This data set has examples of all the different ways to use 2D areas.  The purpose of this data set is just to demonstrate all the different Ways 2D areas can be linked to 1D elements, as well as modified computational mesh examples, and hydraulic structures inside of a 2D Flow Area.
            This will be the last Beta version of HEC-RAS 5.0.  Our “plan” is to have a final release of HEC-RAS 5.0 in January 2015.  So, we need you to test this version of the software and provide us feedback. 
      Thank you for testing HEC-RAS, we look forward to your comments and feedback.
Gary W. Brunner, P.E., D.WRE, M.ASCE
Senior Technical Hydraulic Engineer
Hydrologic Engineering Center. USACE
(530) 756-1104
www.hec.usace.army.mil

Comments

  1. Anonymous

    on October 22, 2014

    Dear Sir,

    First of all I would like to express my great admiration of he intensive work to accomplish such target of taking HecRas into new level as it is a very powerful software. Secondly, i have an important query due to an error that i faced which is as follows: when i run the simulation for a floodplain in rural area a strange water wave advancing (from one cell to the next) happens as the water lines appear to be separated illogically at many cells so do you have any clue?? your quick response is highly appreciated

    Regards,
    Omar Zohny
    Email: [email protected]

  2. Chris Goodell

    on October 23, 2014

    It sounds like you might have a relatively steep area you are modeling and the cells might be too big. Try using smaller cell sizes. During low flows, this may just be something you have to live with, if you can't get the cell size small enough.

  3. Anonymous

    on October 26, 2014

    On the contrary; the area was flat were the flow spreads in large area (1800 m3/s) , i tried different cell sizes from 30m up to 200m noting that the terrain used was 90m. The main issue is that water accumulates at the end of one cell and refuses to continue to the next cell in the downstream (as if the downstream face of the first cell act as a wall with orifice to the downstream cell which is totally illogic, any advice?
    Best regards,
    Omar zohni

  4. Anonymous

    on October 27, 2014

    If you can send me you email i can send you a snapshot for this error as it is very urgent

    Omar Zohni

  5. Chris Goodell

    on October 27, 2014

    Hmmm. That's strange. You may email me at [email protected]

    Thanks-
    Chris

  6. Anonymous

    on December 5, 2014

    Any tips on loading the terrain dataset? When I go to load a single *.FLT file entitled 'copco.flt' I receive the following errors for 'Step 1 of 4':

    1. Failed to process SRS definition: ESRI::C:UsersErikaDocumentsHECRAS BetaKlamathcopco.prj
    2. Error creating Terrain: `C:UsersErikaDocumentsHECRAS BetaKlamathTerrainTerrain.copco.tif' does not exist in the file system, and is not recognised as a supported dataset name.

    Thank you in advance for the help.

  7. Anonymous

    on December 16, 2014

    I also have issues in loading DTM, saved in .flt format as required, into RAS Mapper. The following messages appear:

    Computation Task | hh:mm:ss
    ———————————————————————————————
    Importing 1 of 1: dem1m0_mask_2.flt
    Step 1 of 4: Translating to GeoTiff with SRS…
    Failed to process SRS definition: ESRI::C:UsersTomeiDesktopNUOVA_VERSIONE_TR300_bat_10mGISdem1m0.prj
    Step 1 of 4: Translating to GeoTiff with SRS… | 0
    Error creating Terrain: `C:UsersTomeiDesktopVipacco_16_12Terrain.dem1m0_mask_2.tif' does not exist in the file system,
    and is not recognised as a supported dataset name.

    Cleaning up files…

    What does it mean ? Is it possible to solve this issue, otherwise I am not able to work with the software. Moreover I tried to use the same DTM file in the RAS Mapper version of HEc-RAS 4.1, and it strangely works.

  8. Chris Goodell

    on December 16, 2014

    I just forwarded this (possible) bug on to HEC. I will repost what I find out as soon as I hear back from them.

  9. Chris Goodell

    on December 17, 2014

    Here is what I heard back from HEC regarding this issue. Hopefully this helps:

    This error is from an older Beta in RAS I think where it wasn’t reading the prj file that is SOMETIMEs associated with a FLT file.

    A FLT “file” must have the .flt file and the .hdr file. Sometimes, there is also a .prj – which may not be done properly or might be messing up RAS (note…this is a "projection" file, not the RAS project file, which also has a .prj extension).

    Have the user delete the projection file (don’t use it). RAS won’t reproject the data in this case, but that is okay if the flt is already in the correct projection! This will allow the import to work and a happy RAS user.

  10. Anonymous

    on January 6, 2015

    I got the same issue for my project. My project area has levee. Ten breach plans are set up to find the max flooding risk area. The downstream area has a small hill so most overflow water stops along the high ground. But RAS Mapper shows me a straight break line way back in the overflow area where the terrain is very flat on the max depth map for two breach plans. I am going to change the cell size of the DEM to verify if it is caused by my terrain data.

  11. Chris Goodell

    on January 6, 2015

    smaller cell sizes should help.

  12. white flag

    on January 6, 2015

    HDF_ERROR trying to use HDF output file
    Subroutine READ_UN_Q2D_BC
    HDF_ERROR trying to use HDF output file

    Unsteady flow encountered an error.

    HDF5-DIAG: Error detected in HDF5 (1.8.11) thread 0:
    #000: ….srcH5A.c line 626 in H5Aopen_by_name(): can't open attribute
    major: Attribute
    minor: Can't open object
    #001: ….srcH5A.c line 876 in H5A_open_by_name(): unable to load attribute info from object header
    major: Attribute
    minor: Unable to initialize object
    #002: ….srcH5Oattribute.c line 537 in H5O_attr_open_by_name(): can't locate attribute: 'Face Point Indexes'
    major: Attribute
    minor: Object not found

    What does this error mean?

  13. Chris Goodell

    on January 7, 2015

    Unfortunately these types of error messages don't tell us much. However, given it is having trouble with the HDF file likely means there is a problem with your 2D mesh. Scan the perimeter of your 2D area(s) and look for mesh violations (cell with no center point, cell with multiple center points, cell with more than one exterior face). When/if you find a mesh violation, add some more cell center points around the offending cell to try to get rid of the violation. The document "Combined 1D & 2D Modeling using HEC-RAS" discusses this in detail. Good luck.

  14. Anonymous

    on January 8, 2015

    thanks for your download link"hec-ras5 beta"
    I have already downloaded Hec-ras5 beta but is protected by password when I want to run setup.exe… could you tell me what the correct password is?

  15. Anonymous

    on January 13, 2015

    Hi Chris,
    I am just curious when the final version 5.0 will be available. It is somewhat frustrated that the limitted results export functionality of the beta version makes flood mapping a little inefficient. I look forward for more flexible export format support in the upcoming version.

    thanks,

    Will

  16. Chris G.

    on January 13, 2015

    Will, the last I heard from HEC is that it will be out end of February.

  17. Anonymous

    on January 13, 2015

    It's good to know that. Thanks, Chris.

  18. Chris Goodell

    on January 14, 2015

    the password is ras4you!

  19. César Augusto Simon Calle

    on January 27, 2015

    Hi,

    I have some problems to create the 2D velocity static map. I follow the guidelines but the static map don't show the complete information as the dynamic map at the time step selected. Any idea why?

  20. Chris Goodell

    on January 27, 2015

    It is somewhat "buggy". I was able to get it to work, but it takes some trial and error figuring out the exact process that makes it work. Keep trying. If nothing else, the final version of 5.0 is due out end of February and hopefully it will work better.

  21. Bruno Rodrigues

    on April 7, 2015

    Hi,

    I want to download HEC-RAS 5.0 and HEC-GEO-RAS 10.0 but the site seems down. May someone send me a link other than the one postem in "http://www.hec.usace.army.mil/"?

  22. Anonymous

    on April 19, 2015

    Dear Sir,

    Thanks for all your time and effort.

    I am facing a problem on loading the terrain dataset.In particular, I have downloaded the WGS 1984.prj file from the ArcMap v10.2 and a DEM file (tif. file) from the LP DAAC Global Data Explorer. However, when I try to create the terrain the following message apperas:

    Step 1 of 4: Translating to GeoTiff with SRS…
    Failed to process SRS definition: ESRI::C:UsersDimitrios….WGS 1984.prj
    Step 1 of 4: Translating to GeoTiff with SRS… | 1
    Error creating Terrain: `C:Users…Terrain.20150418121008_1865353658.tif' does not exist in the file system, and is not recognised as a supported dataset name.
    Cleaning up files…

    I have read your reply to a similar post but, however, I did not understand how to face this problem.

    Thank you in advance for your help.

    Dimitris

  23. Anonymous

    on April 22, 2015

    I am trying to see the spread of water at different discharges. But for the different discharge values i am getting the same spread of water. Can you please help me.

  24. Chris Goodell

    on April 22, 2015

    That seems odd. I have no idea, other than maybe is your terrain prohibiting flow from spreading at higher discharges? Is it contained by high ground?

  25. Chris Goodell

    on May 5, 2015

    You can get HEC-RAS 5.0 beta from the original post above. For GeoRAS, you'll just have to keep trying the website.

  26. Chris Goodell

    on May 5, 2015

    Hi Dimitris. Not sure what would cause that. Perhaps it is a problem with the beta version you are using. Email me and I'll see if I can get you a better version.

  27. Jose A Feliciano Cestero

    on May 25, 2015

    I was having the same problem and it was due to a Boundary Condition that I deleted in the geometry file but for some reason was not deleted from the unsteady flow data window. Just posting it here in case anybody else runs into the same error.

  28. Anonymous

    on May 28, 2015

    I presume issue of the final version has been delayed for some reason. Has there been any update on when it is expected?

  29. Chris Goodell

    on May 29, 2015

    Bugs, bugs, and more bugs to fix. Based on what I've heard, I "expect" it will be out by the end of August 2015. But dates have come and gone many times already on this, so take that with a grain of salt.

  30. Bruno Neves

    on July 6, 2015

    Hello there!! looking forward to make the rain fall in hec ras…. any news about updates??

    best regards

  31. Chris Goodell

    on July 7, 2015

    Hi Bruno-
    My latest info is HEC is working very hard to try and get the official release out in August. But no guarantees!

  32. Anonymous

    on September 1, 2015

    Are there any papers on the 2d algorithm? I'd like to know more than the short explanation at the beginning of the manual linked above.

  33. Chris Goodell

    on September 1, 2015

    Please send me an email. I can help you with this.

  34. Anonymous

    on September 3, 2015

    Chris Good morning!

    I've been testing the beta version 5.0, since I just learned of its existence. I made the purpose of modeling a river where you can see the floodplain beyond the previously loaded program sections, I wonder if this is possible. I read the manual and I have seen that there are examples of how to connect the 1D to 2D mesh by dams or any hydraulic structure, but not very explicit as to connect only the 2D mesh with my ground. I wish I could help. Thank you so much
    [email protected]

  35. Chris Goodell

    on September 3, 2015

    That's great! It sounds like you are wanting to connect offline 2D areas to cross sections laterally without a structure. Currently in RAS, this is not possible. Your only options are to connect offline 2D area with cross sections using lateral structures, connect inline 2D areas with cross sections directly (no structure needed). Both of these are explained in detail in the manual. You can also get rid of cross sections all together and just model using a single 2D area (or multiple 2D areas connected by 2D Area Connections.

  36. Anonymous

    on September 3, 2015

    I appreciate your prompt response Chris and I admit that this would be an excellent tool for people like me who are dedicated full the behavior of rivers while and then there are areas that do not easily have access to a rise of land in the field and the fact to place a simulation accompanied ASCII field and Hec-Ras would be excellent, greetings and hopefully prompt news update and I apologize for my bad English.

    Yari Castillo, Mexico.

  37. Anonymous

    on September 18, 2015

    I am having a similar issue as mentioned above, I am currently using the 5.0 Beta from August. I am trying

    to create a hdf file from the terrain I already have.

    The same error occurred during the "burn channel" process described else where on this blog.

    .tif files are able to be brought into HEC RAS because I have done it before. I also have done it with this

    exact file before on the old 5.0 beta from Jan.

    Below is the error code given by the program. If you have any guidance I will be checking back frequently.

    Computation Task | hh:mm:ss
    ———————————————————————————————
    Importing 1 of 1: tiff1.tif
    Step 1 of 4: Translating to GeoTiff and reprojecting… | 5
    Step 2 of 4: Rounding and/or Generating Statistics… | 5
    Step 3 of 4: Generating Histogram… | 1
    Step 4 of 4: Adding Overlays… | 4
    tiff1.tif Import Complete. | 17
    ———————————————————————————————
    Final Processing: Terrain.hdf
    Step 1 of 3: Creating Terrain.vrt… | 0
    Step 2 of 3: Creating Terrain.hdf… | 10
    Step 3 of 3: Creating Stitch-TIN for merging rasters…
    Error creating Terrain: Colinear points
    Cleaning up files…
    C:UsersDesktopFlood InundationtiffHECFILESTerrainTerrain.vrt… done.
    C:UsersDesktopFlood InundationtiffHECFILESTerrainTerrain.hdf… done.

  38. Chris Goodell

    on September 18, 2015

    Which August build are you using? (Aug 21st?)

  39. Anonymous

    on September 28, 2015

    Chris,

    I am using the August 21st version.

    I have not figured out a way to properly import the terrain for the channel that I just exported from RAS Mapper.

  40. Chris Goodell

    on September 29, 2015

    Is it a geotiff? If so, just create a new terrain using that geotiff.

  41. Anonymous

    on September 30, 2015

    Hi,

    I got the same error Message to 🙁 (Colinear Points) installed HecRas 5 today

    Samuel

  42. Anonymous

    on September 30, 2015

    Chris,

    I thought I would reply with the answer to my issues with RAS Mapper and the Collinear Points Error.

    The logic was sound and the process was not the problem. The problem that I was having was in the cell size.

    The data I am using is a combination between Lidar and manually plotted points. The Lidar points were set to a 15 ft grid spacing.

    When exporting to Geotiff I was selecting 15 ft cell size for my grid spacing. I was not taking into account my manually plotted points are not set at 15 ft apart and so I went through and found the smallest spacing and chose that as my cell size.

    My files are small and I fortunately was able to reduce my cell size to 1 ft and get away with it. But it was the solution to the program "stacking" points into the same grid and causing the collinear points error.

  43. Ben Snyder

    on October 12, 2015

    I'm also getting this Error: Colinear Points message when creating a new terrain from a tif. Never seen that before.

  44. Ben Snyder

    on October 13, 2015

    Try reducing the point density in the input GeoTiff. For example, run the Simplify Surface tool in Civil 3D. That should eliminate any points that are so close to one another that RAS can't resolve them as being separate points.

  45. Anonymous

    on October 20, 2015

    Hi,
    Thanks!

    That worked, but I need a cellsize equal to 1 m not 10 m 🙁 Is there a way around?

    Regards

    Samuel

  46. Anonymous

    on October 22, 2015

    It is probably something wrong with output from ArcGis, I used "resample" tool in ArcGis and resampled a raster from 1 to 0.25 m and then it was easy to import I HecRas2D 🙂

    Samuel

  47. Anonymous

    on October 22, 2015

    Hi,

    Started using HecRas2D yesterday, and I am very happy so far. For my usage I currently missing two things:
    1: possibility to put a culvert from one node to another node inside same 2D area or between two different 2D areas.
    2: possibility to model a bridge inside a 2D area.

    Best

    Samuel

  48. Chris Goodell

    on October 22, 2015

    1. Yes,you can do that with a SA/2D area connection (both within a 2D area and also if connecting two 2D areas.
    2. For a bridge, you can model the embankments, but not the deck. RAS cannot handle pressure flow computations inside a 2D area yet.

  49. schly

    on November 5, 2015

    Resampling the raster in ArcGIS worked for me as well. Resampling with the same 1.0ft spacing as the original .tif failed, but succeeded when I reduced the spacing to 0.5ft.

    To clarify, I exported a Civil 3d surface as a geotiff. Rasmapper could not recognize the coordinate system (California State Plane Zone IIf), so failed to write the hdf file. ArcGIS imported it, but said there was no coordinate system present. So I defined it and resampled.

  50. SorayaR

    on November 16, 2015

    I have the same problem, and no ArcGIS, just Global Mapper. I've searched a solution for the last 6 hours, and didn't find any.
    Tried 0.25, 0.5, 1 and 2 m grid size.
    Tried with exports as GEOTIF and FLT.
    Any idea to help me ?

  51. Benoît Fourcade

    on November 17, 2015

    I have the same problem as well and no solution yet.
    My .flt Grid is OK, and works with RASMAPPER v4 (but RASMAPPER v5 doesn't read rasmapper v4 files…)

    With Rasmapper v5, I get this message :
    Computation Task | hh:mm:ss
    ———————————————————————————————
    Importing 1 of 1: GRD_25cm.flt
    Step 1 of 4: Translating to GeoTiff with SRS… | 1
    Step 2 of 4: Rounding and/or Generating Statistics… | 1
    Step 3 of 4: Generating Histogram… | 0
    Step 4 of 4: Adding Overlays… | 1
    GRD_25cm.flt Import Complete. | 5
    ———————————————————————————————
    Final Processing: Terrain.hdf
    Step 1 of 3: Creating Terrain.vrt… | 0
    Step 2 of 3: Creating Terrain.hdf… | 4
    Step 3 of 3: Creating Stitch-TIN for merging rasters…
    Error creating Terrain: Colinear points
    Cleaning up files…
    C:CHAT_1DTerrain.vrt… done.
    C:CHAT_1DTerrain.hdf… done.

    I tried resampling with ArcGIS : same message

    RASMAPPER generates the .tif file and that file is OK, can be viewed in global mapper. But not by RASMAPPER itself…

    Any idea to help ?

  52. Chris Goodell

    on November 17, 2015

    I spoke with HEC about this and they think it means the TIN stitch points are too close together. If you are only using one elevation dataset to create your Terrain, try turning of the "stitching" option. Otherwise, read through all of the comments on this thread, there appear to be a few solutions offered.

  53. Benoît Fourcade

    on November 17, 2015

    Thanks Chris,
    Unfortunately there is still no solution, so I think I gonna wait for the next release…

  54. schly

    on February 18, 2016

    Chris,

    My method posted previously is not working for my new design surface.

    How do I turn off the stitching option in the 2015-08-21 release?

  55. Chris Goodell

    on February 22, 2016

    NOt sure if that feature is available in the August release. In newer releases, you can uncheck the box next to the rounding precision in teh New Terrain Layer dialog.

  56. Emmanuel Jjunju

    on March 21, 2016

    I have installed the new version and imported a very small tif (i.e creating Terrain)

    My operation semms to show no progress beyond the following;

    Final Processing: Terrain.hdf
    Step 1 of 3: Creating Terrain.vrt…

    (The operation is stuck here.. i,e, taking forever abd this wasn't the case with the beta version)

  57. Chris Goodell

    on March 21, 2016

    Send me your geotiff. I'll see if I can figure it out.
    Chris

  58. Xavier Torrella

    on April 13, 2016

    I have the same proble than Emmanuel

    The original file is a float (.flt) of a simple geometric channel with vertical walls.

    Thanks

  59. Biswa Jyoti Bora

    on May 11, 2016

    hello everyone, i am getting this error message
    HDF_ERROR trying to use HDF output file
    Subroutine HDF_ATTRI_ARRAY_I

    Unsteady flow encountered an error.

    HDF5-DIAG: Error detected in HDF5 (1.8.11) thread 0:
    #000: ….srcH5A.c line 254 in H5Acreate2(): unable to create attribute
    major: Attribute
    minor: Unable to initialize object
    #001: ….srcH5A.c line 503 in H5A_create(): unable to create attribute in object header
    major: Attribute
    minor: Unable to insert object
    #002: ….srcH5Oattribute.c line 347 in H5O_attr_create(): unable to create new attribute in header
    major: Attribute
    minor: Unable to insert object
    #003: ….srcH5Omessage.c line 224 in H5O_msg_append_real(): unable to create new message
    major: Object header
    minor: No space available for allocation
    #004: ….srcH5Omessage.c line 1945 in H5O_msg_alloc(): unable to allocate space for message
    major: Object header
    minor: Unable to initialize object
    #005: ….srcH5Oalloc.c line 1142 in H5O_alloc(): object header message is too large
    major: Object header
    minor: Unable to initialize object

    Writing Results to DSS
    Reading Data for Post Process

    what does it mean?
    Please help

  60. Chris Goodell

    on May 11, 2016

    Please download and install Version 5.0.1.

  61. Biswa Jyoti Bora

    on May 12, 2016

    i have tried that but doesn't seem to work. still getting the same error message. Do you have any other suggestions?

  62. Chris Goodell

    on May 12, 2016

    Something must be wrong with your geometry. Do you have a 2D area? If so, is your terrain associated? Are there any cell violations? If you have any connections, are they properly input? There are so many possibilities, but it is likely geometric. I suggest carefully reviewing every input value and make sure everything is ok. If necessary, you can always rebuild your model, piece by piece, to try to isolate the source of the error.

  63. Biswa Jyoti Bora

    on May 16, 2016

    here i have a stream of approximately 25 meters wide and over 200 kilometers long flowing through a high slope area in the himalayan region. so i do not consider 2D area till now, as there are no connections as well. while running unsteady flow simulation, the error appears only after successfully completing the geometry processor. the only solution i found till now is to increasing the cross section interval which again results in extrapolation of the cross sections and high error.

  64. Unknown

    on May 29, 2016

    hello everyone, i am getting this error message
    I try to create terrain from file *.img.
    Error creating Terrain: File does not contain a specified no data value tag.
    Cleaning up files…
    What is wrong?
    Best regards
    Wojciech

  65. Chris Goodell

    on May 31, 2016

    You can't create a Terrain from an *.img. You must create it from a *.flt, *.asd, or .tiff (i.e. geotiff)

  66. Thomas Riviere

    on June 28, 2016

    I have the same issue. I tried different format (.adf, .flt) and the terrain creation processing is stucked at the step 1 of 3. Did anyone find a solution to this problem?

    Many thanks,

  67. Thomas Riviere

    on June 28, 2016

    I have the same issue. I tried different format (.adf, .flt) and there is no progress (stucked at step 1 of 3 of final processing) of the terrain creation. Did someone find a solution?

    Many thanks,

  68. Adamo

    on July 26, 2016

    hello everyone, i am getting this error message:

    Performing Unsteady Flow Simulation HEC-RAS 5.0.1 April 2016

    +STOP! Error in the time window.
    HDF_ERROR trying to close HDF output file:
    HDF5-DIAG: Error detected in HDF5 (1.8.11) thread 0:
    #000: ….srcH5F.c line 2044 in H5Fclose(): invalid file identifier
    major: Invalid arguments to routine
    minor: Inappropriate type
    HDF5-DIAG: Error detected in HDF5 (1.8.11) thread 0:
    #000: ….srcH5T.c line 1761 in H5Tclose(): not a datatype
    major: Invalid arguments to routine
    minor: Inappropriate type

    Writing Results to DSS

    1D Post Process Skipped (simulation is all 2D)

    Maps not computed: unsteady simulation did not complete

    What is wrong?

  69. Chris Goodell

    on July 26, 2016

    Please check your Windows international settings. This post explains: http://hecrasmodel.blogspot.com/2014/06/international-settings.html

  70. Gastão Neto

    on August 23, 2016

    I have this problem. Is thre any solution?

  71. Anonymous

    on October 13, 2016

    Hello, I have the same problem with version 5.0.1, insert the .adf files to generate the field and gives me the error:
    Error creating Terrain: start row is beyond extent of datasert: /Terrain/Terrain.Terreno/0/Mask
    Cleaning uo files …
    C: / user / Documents / Terrain.vrt …. done.

    Could you help me?

  72. Chris Goodell

    on October 13, 2016

    Try using version 5.0.3. If that doesn't work, I would try converting your esri grid (.adf) to one of the other acceptable formats (geotiff, .tif or floating point grid, .flt).

  73. Unknown

    on October 14, 2016

    Thanks Jose! I renamed some boundary conditions in my geometry, and the flow file simply added them as if they were new boundaries rather than renaming the old ones. I had to go in to the flow file and delete the old names.

  74. Juan Sebastian Castañeda Torres

    on November 5, 2016

    I have the same problem but i input the file in format .tif in version 5.0.3

  75. Rowyn CC

    on January 4, 2017

    This problem can occur if you select the "text".tif / .adf / .flt file visible under the all raster data filter. Make sure to select the actual tif/adf/flt file without the file extension. These will be visible in the first filter (Raster Data (*.tif,*.adf,*.flt)).

  76. Heidi Lane

    on February 3, 2017

    I am having the same issue. Has anyone found a solution? We have tried just combining our .tiff's in GIS instead, but the file gets extremely large because it has to use the same grid size for the entire thing. And its just too big to turn that into an HDF without running out of memory. We have LiDAR data for overbanks with smaller (3M) resolution, but the channels that we had surveyed a 2ft x 2ft. Any help would be appreciated, we have been trial and erroring this for a week with no luck. We had no problem the first time, but are just trying to add some additional data and now it wont work.

  77. Unknown

    on April 21, 2017

    Hi. I have had the same issue. Perhaps I've found a solution, but I don't know how, because I've done a lot of changes…Sorry.
    However I'll try to show you which main change I've done:
    1) I saved my hec project in an other folder and I opened Ras Mapper and add new terrain (.tif) before have add any Map Layers.
    2) I changed the name of project from Perù to Peru…(even if I dont' think it was the problem).

    Sorry for my bad english.

  78. Ale

    on April 21, 2017

    Hi. I've had the same issue. Perhaps I've found a solution, even if I'm not sure how I've done.
    So I'll try to show you what I've done:
    I've saved my hec project in an other folder with a new name and I opened Ras Mapper and add a new terrain (.tif) before add any Map layers.
    I've also change the name of my folder and project without any stress mark (from Perù to Peru) but I don't think it was the problem.
    I hope it could be usefull for somebody. Sorry for my bad english.

  79. cherrera

    on July 5, 2017

    I think they are the paths of the working folders, because I did everything from a folder located on the desktop and it was solved

  80. Luiz Gustavo Bispo

    on January 31, 2018

    Probably, your reference system of coordinate don't exist in HEC-RAS. Try to use another, WGS84 for example.

  81. Luiz Gustavo Bispo

    on January 31, 2018

    The problem can to be the name of the folder where the DMT is stored. Don't use word with letters as á or ã etc.

  82. Ramiro

    on May 22, 2019

    Hi!
    Have you found a solution for your problem? I have exactly the same problem with interpolated cross section at 5m…other spaces work fine 10m, 25m, 50m and 100m bit not 5m…any idea?

  83. Unknown

    on October 12, 2019

    Hi Chirs:
    My mane is Jorge Heck and we met in a Hec Ras course at the University of Concepción (Chile), in 2010, they taught with Martin Teal.
    I used Hec Ras 4.1 until yesterday and started with Hec Ras 5.0.3 today.
    I want to use Hec Ras 1D with steady or unsteady flow in an area of which I have a drone surveyd.
    After loading the coordinate system in Ras Mapper, the next step is generate the terrain. When I load the file (.tif), the "terrain" generation does not end and the screen shows the following sequence:
    Computation Task | hh:mm:ss
    ———————————————————————————————
    Importing 1 of 1: CAUCE SOBRE LÍNEA Y CAUCE CONCENTRAD.tif -> Terrain.CAUCE SOBRE LÍNEA Y CAUCE CONCENTRAD.tif
    Step 1 of 4: Translating to GeoTiff with SRS… | 3
    Step 2 of 4: Rounding and Generating Statistics… | 3
    Step 3 of 4: Generating Histogram… | 0
    Step 4 of 4: Adding Overlays… | 4
    CAUCE SOBRE LÍNEA Y CAUCE CONCENTRAD.tif Import Complete. | 13
    ———————————————————————————————
    Final Processing: Terrain.hdf
    Step 1 of 3: Creating Terrain.vrt…
    I would like to know if it is a known problem and has a simple solution.

  84. Chris G.

    on October 15, 2019

    I would use Version 5.0.7 instead of 5.0.3. There have been significant improvements in the Terrain generation computations since 5.0.3.

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