All-in-one stormwater management

Stormwater systems can be very complex to model, with flow backups and reversals, surcharged pipes, and more.OpenFlows CivilStorm is one solution for all your stormwater modeling needs.

What is OpenFlows CivilStorm?

OpenFlows CivilStorm performs analysis of all aspects of stormwater systems: rainfall, runoff, inlet capture and bypass, gravity and pressure piping, ponds, outlet structures, open channels, culverts, and more. Detect system bottlenecks, improve capacity, and limit stormwater flooding, so you can comply with stormwater regulations. Minimize capital investments on your infrastructure with optimized network designs and master plans for your entire system. Better understand surface flood depth and velocity, flood hazard, and inundation times with the new user-friendly 1D/2D hydraulic analysis capability.

Intuitively analyze complex stormwater systems

From stormwater master plan development to water quality studies, CivilStorm provides you an easy-to-use environment to analyze, design, and operate stormwater systems. CivilStorm is a fully dynamic, multi-platform, hydraulic modeling solution developed for the analysis of complex stormwater systems. You can analyze these systems using built-in hydraulic and hydrology tools and a variety of wet-weather calibration methods. Better understand surface flood depth and velocity, flood hazard, and inundation times with the new user-friendly 1D/2D hydraulic analysis capability.

One solution for all stormwater system modeling needs

CivilStorm performs a comprehensive analysis of all aspects of stormwater systems: rainfall, runoff, inlet capture and bypass, gravity and pressure piping, ponds, outlet structures, open channels, culverts, and more. You can analyze pressure and free-surface flow conditions for networks of channels and closed conduits; model complex pond outlets for a variety of tailwater conditions; and use weirs, orifices, culverts, risers, and inlet boxes in your design, all within a single product.

1D/2D hydraulic analysis

User-friendly tools connect 1D network elements with 2D surface flows. Better understand surface flooding depth and velocity, flood hazard, and inundation times, and communicate this information to stakeholders with versatile mapping and reporting tools.

Jump-start your model building process in your favorite CAD platform

Leverage geospatial data, CAD drawings, databases, and spreadsheets to jump-start the model building process. CivilStorm provides synchronized database connections, geospatial links, and advanced model-building modules that connect with virtually any digital data format. You can import SWMM files as well as StormCAD files into CivilStorm. Use drawing and connectivity review tools to guarantee a hydraulically coherent model. You can work in a stand-alone application or run from within OpenRoads, OpenRail, OpenSite Designer or AutoCAD. Regardless of the platform used, CivilStorm maintains a single set of modeling files for true interoperability across platforms, support for multiple background layers, conversion utilities from CAD, GIS, and databases, and unlimited undo and redo.

Interface and Graphical Editing
• Stand-alone Windows interface included
• Ability to run within MicroStation (MicroStation license required)
• Ability to run within OpenRoads Designer for North America (OpenRoads Designer for North America license required)
• OpenRoads Designer storm and sanitary file import/export
• MX Drainage file import
• Unlimited undo and redo
• Element morphing, splitting, and reconnection
• Nodes in close proximity merging tool
• Automatic element labeling
• Scaled, schematic, and hybrid environments
• Inference tool (to interpolate missing data)
• Element prototypes (one-click setup)
• Dynamic zooming
• Named view
• Aerial view
• Multiple background file support
• Image, CAD, and GIS background layer support
• Automatic input and result fields filtering (based on solver used)

Interoperability and Model Building
• Single set of model files for four compatible interfaces
• GIS-ID property (to maintain associations between records in source file and elements in model)
• Polyline-to-pipe conversion from DXF and DWG files
• Spreadsheet, database, Shapefile, and OleDB connections
• Oracle spatial import/export
• LandXML data import/export
• SWMM files import
• Observed data import
• Time series data import
• Automated assignment of elevation data to manhole elements
• Unified file format with OpenFlows SewerGEMS, OpenFlows SewerCAD, and OpenFlows StormCAD

Model Management
• Unlimited scenarios and alternatives
• Comprehensive scenario management
• Scenario comparison
• Active topology (to activate or deactivate network elements)
• Tabular reports with global editing
• Sorting and persistent filtering on tabular reports
• Statistical analysis from tabular reports
• Customizable engineering libraries
• Dynamic (query based) and static selection sets
• Element selection by polygon
• Element selection inversion
• Table opening on selection
• Global engineering units management
• Drawing review tools for connectivity consistency
• Automatic topology review
• Drawing navigator
• Orphaned node and dead-end pipe queries
• Custom data fields (with user-assigned or formula based values)
• Hyperlinks for network elements
• Surface water flow direction displayed across any terrain
• Support of ProjectWise and ProjectWise Geospatial Management

Hydraulics and Operations
• Ability to switch readily between two engines for solving the full set of St. Venant equations
• Implicit dynamic engine included
• Explicit dynamic engine included (EPA-SWMM)
• Gradually varied flow-rational engine included (StormCAD’s engine)
• Steady-state simulations (peak flow)
• Automatic constraint-based design for storm sewers
• Long-term simulations with statistical reports
• HEC-22 inlet capacity calculations
• HEC-22 node headloss calculations
• Support for V-shaped and parabolic gutters
• Evaporation definition
• Aquifer simulation
• Pollution analysis with optional definition of land use categories and land surface characteristics
• Treatment analysis
• Pond infiltration
• Culvert roadway overtopping
• Rule-based controls
• Variable-speed pumping
• Low impact development control analysis

Rainfall Data
• Synthetic design storms or gauged events, including SCS Types (I, IA, II, or III), Bulletin 71 rainfall, cumulative depth, dimensionless depth (and depth and time), incremental depth, and intensity hyetograph 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
• Inflow control center

PondMaker: Pond Outlet Design
• Automatic update of worksheet containing design data for multiple design trials of a single pond
• Multiple pond designs possible
• Maximum outflow rates establishment (user-defined or pre-development flows)
• Post-development pond inflows computation
• Pond size requirements estimation
• Pond geometry design (grading plan or underground storage)
• Outlet structure design
• Pre- and post-development peak flow and volume comparison
• Hydrograph routing through ponds

Presentation of Results
• 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
• Contouring with Shapefile and DXF export
• EQT (elevation vs. flow) curve to outfall element
• Publishing of i-models in 2D or 3D, including to Bentley Map Mobile