Civil Engineering Association

OpenFlows CivilStorm is one solution for all your stormwater modeling needs. This sostware provides an easy-to-use environment for engineers to analyze, design, and operate stormwater systems. 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.

OpenFlows CivilStorm is a superset of OpenFlows StormCAD and a subset of OpenFlows SewerGEMS.

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.

Capabilities:
- Allocate and estimate stormwater loads
Load models with wet weather runoff flows derived from precipitation using the built-in rainfall distributions or user-defined rainfall events. Runoff flows are computed using the most appropriate runoff method for the project.

- Analyze inlet capacities
Calculate the proportion of stormwater runoff that will enter an inlet versus the proportion that will be carried downstream in a gutter or pond on the road surface. Quickly confirm that the spread of flow in a gutter doesn't exceed design requirements.

- Build and manage hydraulic models
Jumpstart the model-building process and manage your model effectively, so that you can focus on making the best engineering decisions. Leverage and import virtually any external data format, which maximizes ROI on geospatial and engineering data, and automate terrain extraction and node allocation.

- Design and analyze culverts
Select from a library of standard culvert shapes, materials, and entrance conditions, then compute culvert headwater and tailwater elevations using calculation methodologies outlined in Hydraulic Design Series Number 5 from the U.S. Federal Highway Administration.

- Design and analyze low impact development controls
Model the effect that low impact development controls have in retaining runoff before it enters the stormwater system.

- Design and analyze pond and outlets
Leverage PondMaker's guiding process through the confusing maze of pond design steps by following the step-by-step process that provides constant feedback on how the design is progressing. Set the maximum outflow rate, estimate storage, and check the outlet design and final design.

- Design stormwater systems
Minimize capital investments by simply entering your design restrictions: velocities, slopes, cover depths, and pipe and inlet matching offsets. The software product recommends the most cost-effective pipe sizes and invert elevations, avoiding unnecessary pipe trench excavation, while meeting design restrictions.

- Simulate hydraulics using multiple solvers
Easily switch among multiple solvers, according to the type of system you are analyzing: Saint Venant equations, and rational/gradually varied flow solver.

- Simulate water quality
Simulate the generation, inflow, and transportation and treatment of any number of user-defined pollutants, such as total suspended solids or heavy metals.