Intuitive sanitary sewer modeling and design software

SewerCAD is an easy-to-use sanitary sewer modeling and design software that thousands of municipalities, utilities, and engineering firms around the world trust to design, analyze, and plan wastewater collection systems. With SewerCAD, you can model both pressurized force mains and gravity hydraulics with ease, using steady-state analysis with various standard peaking factors, and extended-period simulations.

Interoperability for engineering precision models

Out of the box, you can employ this product as a stand-alone application or work directly from within MicroStation. SewerCAD maintains a single set of modeling files for true interoperability across platforms.

The stand-alone interface offers easy-to-use model layout tools, multiple background support including Bing aerial imagery, conversion utilities from CAD, GIS, and databases, and the use of terrain models to dynamically update node ground elevations, display surface contours and profiles, and design conduit inverts using real topography. SewerCAD can open OpenFlows SewerGEMS models seamlessly, including those created within ArcGIS.

Testimonial_Quote_Marks
“SewerCAD was instrumental in reviewing the old trunk sewer and identifying the optimum method of rehabilitation, while SewerGEMS’ modeling features contributed to a significant reduction in labor-intensive work.”

Technical Capabilities

Editing

  • Dynamic elevation updates from terrain models
  • Stand-alone Windows interface
  • Ability to run within:
    • MicroStation (license required)
    • OpenRoads Designer, OpenSite Designer, and OpenRail Designer (licenses required)
  • Unlimited undo and redo
  • Element morphing, splitting, and reconnection
  • Automatic element labeling
  • Scaled, schematic, and hybrid environments
  • Element prototypes
  • Aerial view and dynamic zooming
  • Named view library
  • Multiple background-layer support
  • Image, CAD, and GIS background support
  • Inferencing tool (to interpolate missing elevation data)
  • Automatic calculation of elevations on pipe split operation
  • Automatic input and result fields filtering (based on solver used)
  • Ability to track model changes, date, element, and more
  • Ability to add online Bing Maps as background

Hydraulics and Operations

  • Steady-state simulations
  • Energy Cost analysis
  • Extended period simulations
  • Flow profile methods: capacity and backwater analysis
  • Automatic constraint-based design
  • Diversion simulation
  • Rule-based or logical controls
  • Tractive stress calculations
  • Accurate variable-speed pumping
  • Pump batteries element
  • System head curves
  • Totalizing flow meters
  • Air valves for high points in force mains
  • Control structures (culvert inlet, weirs, orifices, depth-flow curve)
  • HEC-22 node head loss calculations
  • Complex manifolded pump stations/force mains
  • Pond outlet structure calculations
  • Support for catchment elements
  • Support for culvert headwalls and endwalls
  • Low impact development control analysis

Interoperability and Model Building

  • Single set of model files for three compatible interfaces
  • Import of MX Drainage files
  • LandXML data import and export
  • Polyline-to-pipe conversion from DXF and DWG files
  • Spreadsheet, database, Shapefile, and OLE DB connections
  • Elevation extraction from contours, points, and Shapefiles
  • Interpolating elevations between elements
  • Automatic elevation updates using terrain models
  • Interpolating elevations at split
  • GIS-ID property (to maintain associations between records in source file and elements in model)
  • Seed files (new models template)
  • Oracle Locator/spatial data connection
  • Automated assignment of elevation data to manhole elements
  • Unified file format with StormCAD, CivilStorm, and SewerGEMS
  • Import/export of OpenRoads Designer storm and sanitary files

Sanitary Load Allocation and Estimation

  • Automatic sanitary load allocation from geospatial data
  • Geospatial load allocation from billing meters
  • Load allocation using flow monitoring distribution
  • Land-use based load distribution
  • Sewer load assignment based on phased land-use projections and population projections
  • Dry-weather load assignment using hydrographs, unit loads, and pattern-based loads
  • Customizable area-, count-, discharge-, and population based unit sanitary loading library
  • Pipe length, diameter, surface area, length-diameter, or user defined infiltration load type

Model Management

  • Unlimited scenarios and alternatives
  • Comprehensive scenario management
  • Scenario comparison
  • Diversions displayed as links
  • Active topology (to activate or deactivate network elements)
  • Tabular reports with global editing
  • Tabular report sorting and persistent filtering
  • Table opening on selection
  • Customizable engineering libraries for extreme flow factors, section size, material properties, minor losses, and unit sanitary (dry-weather) loads
  • Dynamic (query-based) and static selection sets
  • Element selection by polygon
  • Element selection inversion
  • Statistical analysis from tabular reports
  • Global engineering-units management
  • Drawing review tools for consistent connectivity
  • Automatic topology review
  • Network navigator with dozens of useful predefined queries
  • Orphaned node and dead-end pipe queries
  • Hyperlink for network elements
  • Custom data fields (with user-assigned or formula-based values)
  • Surface water flow direction displayed across any terrain
  • ProjectWise and ProjectWise Geospatial Management support

Results Presentation

  • Thematic mapping
  • Dynamic, multi-parameter, and multi-scenario graphing
  • Advanced dynamic profiling
  • Advanced tabular reporting with FlexTables
  • Property-based color coding and symbology
  • Property-based annotation
  • Project inventory report
  • Scenario summary report
  • Element report and graphs
  • Hydrograph graphs
  • Contouring with export to Shapefile, DXF, and native CAD format

Stormwater Load Allocation and Estimation

  • Runoff methods: SCS Unit Hydrograph, Modified Rational Method, EPA SWMM, RTK Unit Hydrograph, generic Unit Hydrograph, Time-Area Method, ILSAX and user-defined hydrograph
  • Time of concentration methods: User-defined, Carter, Eagleson, Espey/ Winslow, Federal Aviation Agency, Kerby/Hathaway, Kirpich (PA and TN), Length and Velocity, SCS Lag, TR-55 Sheet Flow, TR-55 Shallow Concentrated Flow, TR-55 Channel Flow, Friend, Kinematic Wave, Bransby-Williams, and UK standard
  • Loss Methods: Constant loss rate, Green and Ampt, Horton, Initial Loss and Constant Fraction, Initial Loss and Constant Loss Rate, SCS Curve Number
Editing

Editing

  • Dynamic elevation updates from terrain models
  • Stand-alone Windows interface
  • Ability to run within:
    • MicroStation (license required)
    • OpenRoads Designer, OpenSite Designer, and OpenRail Designer (licenses required)
  • Unlimited undo and redo
  • Element morphing, splitting, and reconnection
  • Automatic element labeling
  • Scaled, schematic, and hybrid environments
  • Element prototypes
  • Aerial view and dynamic zooming
  • Named view library
  • Multiple background-layer support
  • Image, CAD, and GIS background support
  • Inferencing tool (to interpolate missing elevation data)
  • Automatic calculation of elevations on pipe split operation
  • Automatic input and result fields filtering (based on solver used)
  • Ability to track model changes, date, element, and more
  • Ability to add online Bing Maps as background
Hydraulics and Operations

Hydraulics and Operations

  • Steady-state simulations
  • Energy Cost analysis
  • Extended period simulations
  • Flow profile methods: capacity and backwater analysis
  • Automatic constraint-based design
  • Diversion simulation
  • Rule-based or logical controls
  • Tractive stress calculations
  • Accurate variable-speed pumping
  • Pump batteries element
  • System head curves
  • Totalizing flow meters
  • Air valves for high points in force mains
  • Control structures (culvert inlet, weirs, orifices, depth-flow curve)
  • HEC-22 node head loss calculations
  • Complex manifolded pump stations/force mains
  • Pond outlet structure calculations
  • Support for catchment elements
  • Support for culvert headwalls and endwalls
  • Low impact development control analysis
Interoperability and Model Building

Interoperability and Model Building

  • Single set of model files for three compatible interfaces
  • Import of MX Drainage files
  • LandXML data import and export
  • Polyline-to-pipe conversion from DXF and DWG files
  • Spreadsheet, database, Shapefile, and OLE DB connections
  • Elevation extraction from contours, points, and Shapefiles
  • Interpolating elevations between elements
  • Automatic elevation updates using terrain models
  • Interpolating elevations at split
  • GIS-ID property (to maintain associations between records in source file and elements in model)
  • Seed files (new models template)
  • Oracle Locator/spatial data connection
  • Automated assignment of elevation data to manhole elements
  • Unified file format with StormCAD, CivilStorm, and SewerGEMS
  • Import/export of OpenRoads Designer storm and sanitary files
Sanitary Load Allocation and Estimation

Sanitary Load Allocation and Estimation

  • Automatic sanitary load allocation from geospatial data
  • Geospatial load allocation from billing meters
  • Load allocation using flow monitoring distribution
  • Land-use based load distribution
  • Sewer load assignment based on phased land-use projections and population projections
  • Dry-weather load assignment using hydrographs, unit loads, and pattern-based loads
  • Customizable area-, count-, discharge-, and population based unit sanitary loading library
  • Pipe length, diameter, surface area, length-diameter, or user defined infiltration load type
Model Management

Model Management

  • Unlimited scenarios and alternatives
  • Comprehensive scenario management
  • Scenario comparison
  • Diversions displayed as links
  • Active topology (to activate or deactivate network elements)
  • Tabular reports with global editing
  • Tabular report sorting and persistent filtering
  • Table opening on selection
  • Customizable engineering libraries for extreme flow factors, section size, material properties, minor losses, and unit sanitary (dry-weather) loads
  • Dynamic (query-based) and static selection sets
  • Element selection by polygon
  • Element selection inversion
  • Statistical analysis from tabular reports
  • Global engineering-units management
  • Drawing review tools for consistent connectivity
  • Automatic topology review
  • Network navigator with dozens of useful predefined queries
  • Orphaned node and dead-end pipe queries
  • Hyperlink for network elements
  • Custom data fields (with user-assigned or formula-based values)
  • Surface water flow direction displayed across any terrain
  • ProjectWise and ProjectWise Geospatial Management support
Results Presentation

Results Presentation

  • Thematic mapping
  • Dynamic, multi-parameter, and multi-scenario graphing
  • Advanced dynamic profiling
  • Advanced tabular reporting with FlexTables
  • Property-based color coding and symbology
  • Property-based annotation
  • Project inventory report
  • Scenario summary report
  • Element report and graphs
  • Hydrograph graphs
  • Contouring with export to Shapefile, DXF, and native CAD format
Stormwater Load Allocation and Estimation

Stormwater Load Allocation and Estimation

  • Runoff methods: SCS Unit Hydrograph, Modified Rational Method, EPA SWMM, RTK Unit Hydrograph, generic Unit Hydrograph, Time-Area Method, ILSAX and user-defined hydrograph
  • Time of concentration methods: User-defined, Carter, Eagleson, Espey/ Winslow, Federal Aviation Agency, Kerby/Hathaway, Kirpich (PA and TN), Length and Velocity, SCS Lag, TR-55 Sheet Flow, TR-55 Shallow Concentrated Flow, TR-55 Channel Flow, Friend, Kinematic Wave, Bransby-Williams, and UK standard
  • Loss Methods: Constant loss rate, Green and Ampt, Horton, Initial Loss and Constant Fraction, Initial Loss and Constant Loss Rate, SCS Curve Number
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Frequently Asked Questions

What is SewerCAD?

SewerCAD is a sanitary sewer modeling and design software that can be used to design, analyze, and plan wastewater collection systems. You can model pressurized force mains and gravity hydraulics with ease, using steady-state analysis with various standard peaking factors, and extended-period simulations. You can design both new systems and rehabilitate existing sanitary sewers with SewerCAD.

Can SewerCAD analyze gravity and pressure hydraulics?

Yes, you can analyze pressure or free surface flow conditions using a robust gradually varied, standard-step algorithm in SewerCAD for solving subcritical, critical, and supercritical conditions, and complex composite profiles. The steady-state simulation analyzes the system under extreme flow conditions. Automated design features are available with a steady-state analysis type to find cost-effective sewer designs. The extended period simulations (EPS) allow modelers to visualize how the system behaves over time. Results can be animated through time to locate hydraulic jumps and surcharging sections.

What is the difference between OpenFlows SewerCAD and OpenFlows SewerGEMS?

SewerGEMS is a superset of SewerCAD.  SewerGEMS includes a standalone version plus the ability to integrate with three platforms MicroStation, AutoCAD, and ArcGIS. SewerGEMS’ full GIS, CAD, and SCADA interoperability enables the cost-effective sharing and flow of information between utilities’ design, engineering, GIS, and operation departments, and their consultants.

SewerCAD has a gradually varied flow engine for steady-state and extended period simulations for system design and rehabilitation that analyzes sanitary sewer networks under peak flow conditions with convex routing hydraulics. SewerGEMS uses a fully dynamic engine to help you accurately model looped networks, flow splits, overflows, and storage capacity.

How do you calculate wastewater loading allocation, estimation, infiltration, and inflow?

The LoadBuilder module included in SewerCAD helps you allocate sewer loads based on a variety of GIS-based sources such as consumer water use billing data, area-wide flow measurement, or polygons with known population or land use. Sewer loading in SewerCAD also can be applied as user-defined hydrographs, pattern-based loads, and unit loads. You can use customizable unit load libraries to estimate sanitary flows based on contributing population, service area, total dry weather discharge, or your own customized loading types. Loads can be allocated individually to property connection elements, or collect to manholes and other node elements.

SewerCAD also includes numerous pre-defined extreme flow factor formulas and tables, including Babbit, Harmon, Ten State, and Federov’s – or lets you enter your own formulas and tables. SewerCAD determines infiltration in gravity pipes, based on pipe length, length diameter, surface area, count value, or user-defined data. SewerCAD can also use multiple flow patterns or flow hydrographs for EPS. The sanitary load control center and inflow control center make it easy to globally edit or edit a filtered set of elements.

What do the constraint-based design features do in SewerCAD?

By using the constraint-based design features in SewerCAD, you can automatically design gravity piping and structures. The design is flexible enough to allow you to specify the elements to be designed, from a single pipe size to the entire system, or anything in between, by simply entering your design restrictions: minimum and maximum velocities, covers, slopes, and tractive stress; pipe and manhole matching offsets; and allow (or not) drop structures. SewerCAD will automatically determine cost-effective pipe sizes and invert elevations, avoiding unnecessary pipe trench excavation.

How do you perform different scenarios in SewerCAD?

The SewerCAD Scenario Management Center gives you full control to configure, run, evaluate, visualize, and compare an unlimited number of what-if scenarios within a single file. You can easily make decisions by comparing unlimited scenarios, analyzing rehabilitation alternatives for multiple planning horizons, and evaluating pump operation strategies, or overflow scenarios with varying future wastewater flows.

How much does OpenFlows SewerCAD cost?

A practitioner license of OpenFlows SewerCAD costs $1,017 – $7,637 USD at Virtuosity.com depending on the desired pipes. Prices also vary per region. While there are various types of licensing available, a common choice is the 12-month practitioner license offered through Virtuosity, Bentley’s eCommerce store. When you purchase through Virtuosity you get a Virtuoso Subscription. This means you get the software and “Keys” (tokens) to redeem for customizable training, mentoring, and consulting services.

System Requirements

Refer to the ‘Installation Requirements’ section of the SewerCAD ReadMe file.

Platform pre-requirements

SewerCAD runs without platform restrictions as a stand-alone application. It can also run from within AutoCAD, MicroStation, OpenRoads Designer, OpenRail Designer, and OpenSite Designer. The requirements are also available in the SewerCAD ReadMe file.

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