• ArcHydro Problem Solvers

    This is a collection of actions I've learned to take when I'm having problems with ArcHydro or HEC-GeoHMS. I'll add to the list when I find more. Make sure the Geoprocessing extents include the whole project: Go to t...
    last modified by MBoucher21
  • Error HRESULT E_FAIL has been returned from a call to a COM component

    Hi, I'm new to Archydro and have installed Archydro in ArcMap 10.1. Everytime I try to run one of the applications like calculating slope or flowdirection out of my .grd or .tif the Error  "HRESULT E_FAIL has be...
    last modified by Lolaleya
  • Longest Flow Path Errors

    I am using HEC-GeoHMS 10.7, ArcHYDRO 10.7, and ArcMAP 10.7.1. I keep receiving an error every time I perform the Longest Flow Path under characteristics in the HEC-GeoHMS toolbar. The error message is as follows, ...
    last modified by Patrick@P97
  • Sharing the Flow Path Tracing Tool - ArcGIS Pro 2.5

    Hi All - I'm trying to share the Flow Path Tracing tool found in the ArcHydro Point Characterization Toolset via ArcGIS Pro (2.5).  My flow direction raster is an image service shared via AGS (10.6.1).  The ...
    last modified by nickharvey
  • Main Flow Path errors

    Hello! I am adding my ArcHydro woes to a long list of troublesome and seemingly unfixable errors with the toolset! I recently upgraded from 10.3 to 10.7 and now I am having troubles with the tools in the Watershed Pro...
    created by Myla-Rae
  • Setting Target Location in Arc Hydro

    I have trouble with setting target location for raster data in Arc Hydro. It shows that my specified folder location is not a raster work space and so does not proceed further, I don't know what is wrong. Also, the su...
    last modified by faridfarhat
  • DEM reconditioning: zeros become "No Data"

    Hi all,   I am using the "DEM reconditioning from stream grid" tool and unfortunately it seems that all my pixels where the value is "0" (zero) are transformed to "No Data" points.   In my original DEM fil...
    last modified by xela3185@gmail.com
  • ArcHydro 10.7.1: Stream Segmentation

    I am trying to use the stream segmentation tool to delineate catchments within a watershed in order to *hopefully* identify wetlands that have no upstream contributing wetlands. However, when i run the stream segmenta...
    last modified by BGIS_DT_SP19_EmmaAppel
  • HEC-GeoHMS TR55 Export: Class Not Registered Error

    I am currently working with HEC-GeoHMS. The TR55 Export button isn't showing, when I tried to access the TR55 Export button from Macros, there's showing an error named "Class Not Registered". What will be the possible...
    last modified by Biku.247
  • ArcGIS 10.7 version of HEC-GeoHMS installation package looking for Arc Hydro 10.7.19, does this version exist?

    HEC-GeoHMS installation package for ArcGIS 10.7 looking for a version of ArcHydro that doesn't exist and won't install, with either or which are the closest versions.
    last modified by licskoz
  • I am trying to delineate/model a floodplain using only a DEM and ArcHydro tools but unsure of workflow - anyone done this before?

    I am working without access to flood gauge or any other water level data, and wish to delineate the floodplain by either using slope/flow direction/acc etc. Has anyone done this before?   Thank you!
    last modified by superfern
  • Longest Flow Path for Catchments error 010429

    I can't seem to get Longest Flow Path for Catchments in ArcHydro to successfully work, as I keep receiving 010429 and 010067 errors when I run it.  Does anyone know how to prevent this from happening? I am using ...
    last modified by tysonbartlett55
  • HEC-geoHMS longest flowpath error

    I've tried this with several different projects and it keeps giving me an error at his step (after processing for about 55 min). See attached error message. 
    last modified by jjkurkif_NCSU
  • Problem projecting DEM

    I will like to project my DEM from GCS_GDA_1994 into UTM but when I select Projections and Transformations> Raster -> Project, I can't find the file that represents my DEM. I am using ArcGIS 10.5. Can anyone he...
    last modified by hanshelim22
  • ArcHydro Toolbox missing

    After upgrading to ArcMap 10.5 I downloaded the according version of ArcHydro and installed it. The ArcHydro Toolbar is there, but I cant find the ArcHydro Toolbox in my ArcToolbox.   Can anyone help me? Thank y...
    last modified by Heiko_Schmidt
  • Arc Hydro Tools not Saving Outputs in ArcPy

    I am running Arc Hydro tools via Python scripts. I have recently run into issues with tools' outputs not being saved. For instance, I run the following tools one after the other in my script:   path1 = "C:\\arc...
    last modified by JMark@dnr.IN.gov_indnr
  • Infoworks ICM

    Hi,   I am using the Infoworks ICM flood modelling software and I am exporting the results in to ARCMAP so I can create some flood hazard mapping based upon the shapefiles exported. The exported shapefile contai...
    created by sboden-esristaff
  • ArcHydro/ArcHydro Pro Create Sink Structures

    Both in ArcMap and ArcGIS Pro, the ArcHydro Tool Create Sink Structures fails on the 'ExtractValueToPoints' line: ERROR  010560: Cannot create table or feature class: tmpdraftsinkpt. If I perform the command manu...
  • Hydro Flattened DEM

    Hello Everyone,  I am trying to create Hydro Flattened DEM by adding breaklines which has Z value as a surface constraint to LAS data set. But the elevation values in the DEM inside the river seems to higher tha...
    last modified by manoj.paranthaman_ATL
  • Why do I get differing symbology for Flow Direction, even when processing in the same manner?

    Can anyone help to explain how sometimes I receive the appropriate symbology for flow direction (using a filled DEM, D8 flow type), with an output showing the typical directional coding (1, 2, 8, 16, 32, 64, 128)...
    last modified by Elizabeth.Bazluke_nrcs