What's New in SMS 13.1

The following is a list of the more significant changes and new features available in SMS 13.1.

Keep your license current by paying annual maintenance to continue receiving all available updates, releases, and technical support. New licenses include maintenance for 1 full year.

3D Bridge Modeling

Visualize a 3D bridge in oblique views. Overlay bridge features on 2D profile and cross-section plots.
3D Bridge Modeling with SMS 13.1

Extract Features

Generate streams, arcs, and cross sections from raster data.

Additional Online Maps

New map sources include Google Services (Hybrid, Map, Satellite, Terrain) and ArcGIS (NatGeo, Ocean, World Physical/Shaded/Terrain). Advanced Options allow for adding custom sources including FEMA Flood and Hazard maps.
Additional Online Maps with SMS 13.1

Tutorials - SMS General

New tutorials are now available:

  • 3D Bridge
  • Annotation Cross Sections
  • Bridge Scour Scenarios
  • Cross Section
  • Cross Section to Surface
  • Dataset Toolbox
  • Extract Features
  • Extract Features for Mesh Generation
  • Mesh Generation from Extracted Features
  • Observation Data
  • Raster to Flood Depth
  • UGrid Clipping
  • Unit Q Floodway Delineation

As always, our comprehensive tutorials are free to download and provide step-by-step instruction on using SMS. Download tutorials at the SMS Learning Center

Simulations Updates

Updated simulation management and improved preview mapping of components on model geometry.

Updated Floodway Delineation

Improved floodway delineation with new methods including Equal Conveyance and Unit q. Create 1D elevation cross sections.


The ADCIRC Interface has been updated with expanded model feature support and improved performance.

CMS Flow

The CMS Flow coverages and model control have been updated in the CMS Flow Interface.


SMS now supports a HEC-RAS 1D export option.


The SRH-2D Interface and Model have been updated with new features and capabilities developed in collaboration with FHWA. Highlights include:

  • New SRH-2D specific Floodway tools
  • New and improved plots now available in the Model Run Queue
  • New boundary condition option that allows 2D flow modeling for overtopping HY-8 culverts
  • Output spatial datasets of “maximum” and “times of maximum”
  • Updates to SRH-2D material coverage and material properties
    3D Bridge Modeling with SMS 13.1
  • New Channel Calculator tool for populating boundary conditions
  • Improved management of HY-8 linkage
  • Import native model files and automatically create simulations in SMS
Tutorials - SMS Supported Models

New tutorials are now available:

  • HEC-RAS 1D
  • SRH-2D Advanced Simulation - Calibration
  • SRH-2D Advanced Simulation - Calibration Mannings
  • SRH-2D Advanced Simulation - Scenarios
  • SRH-2D Variable Water Surface Initial Condition

As always, our comprehensive tutorials are free to download and provide step-by-step instruction on using SMS. Download tutorials at the SMS Learning Center

New Software-based Licensing

GMS 10.5 offers 2 new licensing methods including Local and Flex licenses that are software based - no hardware required! Existing users will have the option of migrating to either method at their next maintenance renewal. Learn more

  • Local license: Designed for use on a single computer and offers support for Remote Desktop & virtual machines
  • Flex license: Offers the flexibility of sharing a license on your network as well as a check-out / check-in feature for remote work
GIS Module

Generate flood depths from a raster

Map Module
  • Improvement to 1D Cross Section Tools including:
  • Create interpolated cross sections
  • Trim cross sections
  • Efficiently convert cross sections to a TIN
  • New Feature Extraction Tool. Leverage flow direction and accumulation models to extract topographic features
  • New universal Select Objects tool
  • Improved shapefile export
  • Copy feature objects between coverages
  • New arc annotation options to indicate direction and station Updates to the bridge scour tool

The following is a list of the more significant changes and new features available in SMS 13.0.

Simulation Run Queue

Manage multiple model runs for ADCIRC, SRH-2D, or STWAVE simultaneously in the new Simulation Run Queue. Diagnostic information such as monitoring plots is displayed during model runs. The new run queue is a modeless dialog which means users can continue using SMS while simulations are running. Completed runs may be visualized in SMS while additional runs are still in process.
Simulation Run Queue with SMS 13.0

Floodway Delineation Tool

The floodway tool is used to delineate approximate floodway extent arcs based on the geometry of the mesh, scatter set or cartesian grid used in a project.

Map Flood Tool

Quickly identify changing floodplain extents when changes occur to the floodwater elevation. SMS can help visualize the impacts of possible modifications in the flood level by utilizing ground elevations and existing FEMA flood hazard maps.

Bridge Scour Tool

The Bridge Scour coverage will take an existing dataset from a 2D hydraulic modeling of a bridge crossing and export many of the needed variables to the Hydraulic Toolbox for a scour analysis. Bridge scour output values may also be copied for use with other tools.
Bridge Scour Analysis with SMS 13.0

Core Module Improvements
  • Constant paving density option (Map)
  • Arc redistribution based on size function. This impacts mesh generation because it is not done automatically during mesh generation anymore. (Map)
  • New ‘Snap Arcs to Mesh’ command which changes mesh nodes to match arc nodes and vertices (Map)
  • Faster meshing (Map)
  • Meshing now handles single segment breaklines (Map)
  • Meshing no longer redistributes the arcs when scalar paving is used (Map)
  • Ability to interpolate solution sets to another mesh (Mesh)
  • Convert 2D scatter sets to raster data (Scatter)
LIDAR Management

SMS now supports advanced LIDAR data handling tools for reading, viewing, and converting LIDAR data to other formats for use with your model. Large LIDAR datasets are efficiently displayed with options to specify the number of points visualized and exclude points outside the extent.
LIDAR Managmeent with SMS 13.0

General Features
  • Updates to the measurement tool
  • Coordinate system preview option
  • New GIS tab showing GIS information in the information dialog
  • New Notes tab included in property dialogs
  • Toolbox and scripting updates
  • Web menu items moved to File menu
  • Import STL files
  • Improvements to Plots
  • Select features and enhancements
Model Interface Improvements
  • The ADCIRC and STWAVE interfaces have been updated to allow for multiple simulations in a single project
  • The HEC-RAS, SRH-2D, and TUFLOW interfaces have been updated with additional features