Storm Sewer & Flood Modeling

Welcome to the Innovyze Stormwater, Sewer, and Flood modeling feedback page.

This forum is the place to hear your ideas, feature suggestions, and feedback about our Stormwater, Sewer and Flood Modeling offerings.  For more information about these offerings, please visit: http://go.innovyze.com/Storm-Sewer-Flood

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  1. Pump Station Modelling

    Infoworks ICM pump station modelling principle is very basic, adding a pump between two nodes is highly hypothetical. There is no way to add pump station head losses.
    I would like to suggest incorporating pump station modelling (for Rotodynamic pumps) with pump curve and system curve theory. Then the model results would be much more realistic.
    There must be a tool to incorporate all the accessories in pump stations, between two nodes. Like pump station type, drywall wet well. And Parameters to calculate Pump suction and discharge losses, like all fittings, non-return valves, discharge valves, flow meters etc. This would…

    5 votes

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  2. odour

    Air Phase Model Function - Can Innovyze consider to include air phase modelling function in InfoWorks? At moment, the odour modelling is done separately by various methods using the sewer hydraulic data as the input. As a result, the odour modelling has to be done by different teams and often costing. There is a strong market demand to integrate the liquid and air phase modelling, for example DHI already has a function. It is technically challenging to have a full integration, however there are well developed simplified ways to achieve that.

    4 votes

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  3. ICM - HEC-22 Combination Inlet for continuous grade inlets

    Currently ICM has 6 FWHA Gully Inlet types:
    ContCo Continuous Curb Opening
    ContG Continuous Grate
    SagC Sag Combination
    SagCO Sag Curb Opening
    SagG Sag Grate and
    UPC Grate

    A commonly used Inlet type (particularly in QLD Australia) that is missing from this list is the combination (curb opening + grate) on a continuous grade.

    Section 4.4.4.4. in the HEC-22 manual discuss the capacity of these inlets where the curb opening precedes the grate in the direction of flow. It would be particularly useful to include this option in ICM rather than assuming a grate only inlet type or having to…

    1 vote

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  4. Add bottom orifice in ancillaries

    You will find in the attached document a frequent encountered example of a bottom orifices.

    4 votes

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  5. Improve ground infiltration simulation parameters.

    Could we have a 'Node level affects groundwater infiltration' for the soil store please?
    This simulation parameter was introduced to InfoWorks ICM recently to limit infiltration from the ground store to the model. Could this be extended to limit flows from the soil store as well?
    As often when are using models for design purposes, infiltration can become excessive in design events compared to verification. Therefore we have to manually reduce soil store inflow, often requiring new limiting discharge orifices and nodes at each subcatchment with GI applied. Thanks

    17 votes

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  6. Our clients would like to see InfoWorks ICM apply daylight savings time corrections to wastewater and tradewaste inflows

    As a toggle setting in the run settings or in a wastewater/tradewaste pattern, this would shift the diurnal patterns based on the simulation date and daylight savings time start/end dates instead of working on standard time all year long. Mathematically, this is really straightforward, but may require internal indexes (and warning messages?) for the DST start/end dates. It would also require something to turn this feature on and off as there are several areas that do not observe DST. This feature would help us more accurately predict combined sewer overflow volumes and durations where base wastewater flow has a significant…

    22 votes

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  7. Merge pond and storage nodes and increase their functionality

    Pond nodes:
    - allow variable infiltration at different levels (up to 3 different rates)
    - allow variable perimeter with level i.e. plan area through which side infiltration can occurs can vary
    - no porosity function

    Storage nodes:
    - 1 porosity value (which only works below ground, above ground it is assumed to be 100%)
    - fixed perimeter for infiltration i.e. assumes cylindrical shape for infiltration (despite the plan area changing with level)
    - fixed infiltration rate (no change with height)

    It is not possible to model both porosity and a change in infiltration with height.

    I propose that pond and…

    8 votes

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  8. blockage

    Applying pipe blockage is a standard required in Australia and the functionality in ICM to do this is not user friendly (using blockage links). A simple % pipe blockage in the conduit properties should really be an option. This is particular the case for cross drainage and also orifice and pipes leaving detention basins (where a pit isnt used)

    12 votes

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  9. Allow the user to choose the flood type of pond or storage nodes

    Allow the user to choose the flood type of pond or storage nodes from a drop down as is the case for manholes. As opposed to the current state where the flood type depends on the relationship between the highest level entry in the storage array and the ground level of the node.

    From help file: "Storage nodes or ponds can flood. If the highest level entry is below ground level, the pond is considered to have a roof at that level and is therefore sealed. If the highest level entry is equal to the ground level then any water…

    7 votes

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  10. Revision to manhole representation

    ICM's default representation of manholes could be more accurate. The limitations of current setup allows accurate representation of either the shaft or the benching but not both. Thus most people tend to apply chamber areas to invert which overestimates the volume prior to surcharge or the shaft to top of benching which overestimates the volume at the surface.

    Because we can now define the benching in the database, it would be better if the default dimensions for manholes were altered to represent 4 critical levels, invert, top of benching, roof, and cover. With associated areas as channel, chamber and shaft.

    3 votes

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  11. Multiple Conduit Selection

    The Select downstream (or upstream) links button is of limited use. Typically, I would like to select all downstream CONDUITS, in order to create a long section, but I find ICM arbitrarily include overland links (curb & gutter) between nodes and not show the conduit. I guess an SQL could be written, but a simple select conduits only button would be better.

    2 votes

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  12. Additional storage calculations

    Can we please revisit the assumptions in the additional storage routines.

    In a world where everyone has access to accurate property location data, via customer seed points and subcatchments can be any shape or size. The distances between properties and sewers can be much more accurately determined in the calculation than is currently the case, based on the existing A/4L.

    The calculation also makes no allowance for private inspection chambers, which in many instances would provide more volume than the pipe.

    Two versions of the equation driven by a new field in the subcatchment would also be better allowing lateral…

    1 vote

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  13. bottom opening

    Beside an upstanding vertical orrifice, it would be practical to be able to implement horizontal 'bottom holes' from one node to an underlaying node. e.g when a ditch can drain to an underlying conduit by means of a bottom opening. This might be a more straight forward implementation then the weir circumference workround method which is now often used. if possible both circular and rectangular.

    15 votes

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  14. Selection List Subtraction

    I was looking for a way to subtract one selection list from another. In other words, we would like to remove overlaps between selection sets but it seems there is no way to do that easily in ICM.

    It is highly recommended to include this feature for future versions as competitors such as Bentley SewerGEMS have already had this for years now.

    2 votes

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  15. Enable alternate versions of the SWMM engine within ICM

    I would like to have the option to use a different version of the SWMM engine to be run instead of the latest Innovyze version. In some cases this is required, but it is often very helpful to confirm the results from previous versions.

    2 votes

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  16. Change Variable Speed Pumps Image

    The image for Variable Speed Pumps under the "Other Special Diversion Examples" section is likely wrong. Looks like it is a copy of the image for Pump discharge pipes. Would be great if you could update with the right image! Thanks

    2 votes

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  17. XPSWMM Inlet capacity - head difference rating or geometry-based inlets

    Inlet capacity creates a second node internally to XPSWMM. Currently, the rating curve methods for it are calculated based on node depth, rather than head differential, which doesn’t work right with 2D if the storm sewer HGL is above the gutter.

    I really like how inlet capacity doesn’t require adding an extra node. I would like to suggest it be expanded as follows:

    1) Simply add a head differential rating curve.

    2) Add a structure-based option for inlets,

    For a structure-based inlet, it could essentially be a multi-link. I would like to have a global database of standard inlet types…

    2 votes

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  18. Structure flow mode reported in the results

    Sometimes when evaluating results at structures we see strange results that require investigation; invariably we find out that this is because the flow mode has changed. (e.g. from free to drowned). It would be very helpful if the ICM results were able to report the flow mode as a time-varying output. This would result in a lot of time saving when investigating models. For reference I am referring to the Flow Mode functionality that is available in InfoWorks RS and Flood Modeller Pro.

    5 votes

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  19. Infoworks - Pipe grade calculator

    Pipe grade calculator between US and DS inverts, Ultimately having the ability to calculate downstream or upstream inverts over a long network based on a specified grade from either a DS or US invert level as a starting point.

    10 votes

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  20. Circular sluices/penstocks would also be useful

    Similar to the rectangular flap valve request, circular sluices would avoid workarounds trying to estimate the rectangular equivalent to a half closed circular penstock (or worse still a half closed egg shaped penstock)

    19 votes

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