Stormwater

Design, build, and operate climate-resilient stormwater infrastructure to mitigate urban flooding and protect communities from extreme weather events.

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OVERVIEW

Mitigate stormwater flooding and ensure compliance

Manage runoff, flood risk, and compliance by connecting hydraulic modeling, civil design, and asset data.

Design

Create intelligent, data-rich, and shareable 3D models that provide a clear vision for the entire project team, ensuring buy-in 
from the very beginning.

Analyze and design storm collection systems to ensure adequate capacity, prevent flooding, and meet regulatory requirements.

Design and optimize detention ponds, LID) controls, and green infrastructure to manage runoff, reduce pollutants, and meet environmental standards.  

Build

Bring your project to life by visualizing the construction sequence in advance. Integrate schedules with 3D models to solve issues proactively for a safer, more efficient build.

Streamline the construction of storm networks and drainage systems using integrated civil design and collaboration tools.  

Manage earthwork and construct detention ponds and other site drainage features with advanced 3D site modeling solutions.

Operate

Optimize daily performance with real-time data from your asset. Make smarter, data-driven decisions that’ll help ensure it operates reliably.

Utilize hydraulic models to simulate extreme rainfall events, assess system capacity, and inform emergency response plans.

Model the effectiveness of LID controls and ponds in removing pollutants to ensure operational compliance with mandates.

Maintain

Extend the life of your asset using a digital twin. Remotely monitor real-time conditions to identify problems before they occur, improving safety and long-term reliability.

Manage critical inspection data for culverts, outfalls, and catch basins to ensure compliance with MS4 regulations. 

Combine inspection data with hydraulic modeling to identify bottlenecks and prioritize capital improvement plans (CIP).

Solutions

Climate-resilient stormwater infrastructure

Stormwater systems

Analyze, design, build, and maintain climate-resilient storm networks. Leverage integrated hydraulic modeling and civil design to manage urban flooding, ensure capacity, and protect communities from extreme weather events.

  • Urban stormwater analysis in OpenFlows Storm showing a flood simulation and network capacity.

    OpenFlows Storm

    Starting at

    $1,355.00 USD

    Stormwater system modeling and analysis software

    • Design
  • Detailed 2D design plan of a highway overpass and intersection created in OpenRoads Designer

    OpenRoads Designer

    Starting at

    $7,226.00 USD

    Road design software

    • Design
  • ProjectWise

    Starting at

    $312.00 USD

    Infrastructure project delivery software

    • Design
    • Build
  • 4D construction model in SYNCHRO showing cranes installing a new bridge section over a railway

    SYNCHRO 4D

    Starting at

    $4,980.00 USD

    4D construction planning and performance tracking software

    • Build

Ponds and green infrastructure

Design and construct effective detention ponds, low-impact development (LID), and sustainable drainage systems (SuDS) to control runoff, reduce pollutants, and enhance site aesthetics. 

  • Urban stormwater analysis in OpenFlows Storm showing a flood simulation and network capacity.

    OpenFlows Storm

    Starting at

    $1,355.00 USD

    Stormwater system modeling and analysis software

    • Design
  • A 3D conceptual site model of a commercial development featuring parking lot layouts, building pads, and grading visualization in OpenSite Designer.

    OpenSite Designer

    Starting at

    $3,168.00 USD

    Building design and energy analysis software

  • ProjectWise

    Starting at

    $312.00 USD

    Infrastructure project delivery software

    • Design
    • Build

Bentley’s OpenFlows Storm allowed me to quickly and efficiently design a new stormwater network for a project with multiple unique challenges in a timely manner, while accommodating difficult project constraints.

– Joshua Eisenof, Civil Engineer, Quattrone & Associates, Inc.

USER STORIES

Real stories, real users

Storm network design cuts costs and avoids delays

Quattrone used OpenFlows Storm to redesign a stormwater network mid-construction, saving $10K and avoiding a 6‑month delay

The 25-acre construction site for the Mevers School of Excellence in Florida, showing the sandy soil and initial earthworks for the large underground stormwater system.

CSCEC-AECOM uses digital modeling to deliver resilient flood control

Bentley products enabled precise drainage design and improved collaboration, helping to protect 300,000 people in Jinchang, Gansu, China

A digital twin simulation by CSCEC and AECOM showing a city-wide flood scenario for the Longenggang River Basin project in Shenzhen.

FAQS

Find answers

OpenFlows Storm provides robust data interoperability with Esri’s and ArcGIS platform. Using the built-in ModelBuilder tool, you can easily import, export, and automatically synchronize your network data using standard shapefiles and geodatabases. This allows you to quickly build and update hydraulic models directly from your existing GIS data, ensuring accuracy saving hours of manual data entry. 

OpenFlows Storm is our premier solution for storm sewer analysis. It provides a comprehensive toolset for modeling complex networks, detention ponds, and culverts. For environments that handle both storm and sanitary flows, OpenFlows Sewer handles combined sewer systems. 

OpenFlows Storm can run as a standalone application, or it can run natively within MicroStation, Bentley’s civil design solutions like OpenRoads Designer and OpenSite Designer, and AutoCAD. This native integration allows civil engineers to perform hydraulic analysis directly within their 3D design environment, ensuring storm networks are clash-free and dynamically updated as road alignments or site grading changes. 

OpenFlows Storm provides specialized tools to analyze and optimize pond routing, outlet structures, and LID controls like rain gardens and permeable pavements. This hydraulic data seamlessly integrates with OpenSite Designer for final site grading and construction detailing.

Yes. For comprehensive climate resilience studies, OpenFlows FLOOD provides an integrated environment to simulate the interaction between riverine flooding, coastal storm surge, and urban drainage systems, giving you a complete picture of community-wide flood risk. 

Bentley software supports the lifecycle from initial design to long-term capital planning. You can analyze and design resilient networks and ponds using OpenFlows Storm, OpenRoads, and OpenSite. During construction, ProjectWise and SYNCHRO 4D streamline multi-disciplinary collaboration and project delivery. For long-term upkeep, you can combine hydraulic models with condition data from AssetWise Inspections to prioritize maintenance and capital rehabilitation upgrades. 

Ready to transform your infrastructure projects?

Let's work together towards your project's success. We're ready to discuss your workflow and tailor the right solution for you.