Ready to pull the plug on your legacy drainage design software?
Causeway Flow is an end-to-end drainage design solution for engineers to design optimal and compliant drainage schemes efficiently and cost-effectively. Switching is easy with our in-house product experts.









What will you get with Causeway Flow?

Reduced upfront costs with subscription bundles
Our subscription cloud-based licensing model saves you from big upfront costs and licences are shareable with multiple users, machines and locations. Your current per-user licensing model may cost thousands more than actually necessary.

Quicker approval process
Get accurate results using the state-of-the-art hydraulic SWMM5 engine with outputs that are compliant with UK-specific drainage design requirements. We work closely with approving authorities to ensure approvals are quick and efficient.

Fully BIM compliant
Fully BIM compliant, delivering the BIM outputs clients require. Causeway Flow makes it easy to attach meta data and create reliably buildable drainage networks.

Real-time, fully integrated design
Compatible with Autodesk, AutoCAD® and Civil 3D® or can be used as a standalone application. It also works seamlessly as part of the Causeway Live Design platform for simple, streamlined design with no switching between packages.

In-house product experts
Moving from another drainage design package? Don’t worry, we are experts in transition and have a wide array of pricing offers and training processes to get you up to speed in no time.
Causeway Flow compared
Get the most out of your drainage design software — Causeway Flow is a next-generation drainage design solution that allows different stakeholders to design, collaborate and audit the design process using 3D simulations, real-time updates and more. Create compliant and optimal designs with our intuitive platform.
Pulling the plug on your legacy software?
It's time to future-proof your business. Get in touch with our Design specialists.
CAUSEWAY
Your Potential Labour Cost Savings
In this time of falling margins and uncertainty across the construction industry its worth recognising the positive impact that biometric time and attendance can have on commercial performance. Our recent research found that contractors using biometrics reduced labour costs by 20% on average.
The below calculation provides an indication of what your business could save with biometrics.
If you are seeking advice on implementing a biometric solution or would like to arrange a demonstration of the Causeway Donseed solution, please contact marketing@causeway.com today.
If you're still using a per-user licencing model, you may be spending thousands more than actually necessary. Use our calculator to check how much your business could save.
Simply enter a few details to calculate the potential savings
Your Information
What is the price of one annual licence you will potentially pay?
What is the price of one annual licence you will potentially pay?
- £2000
- £4700
- £7500
How many users need to access the software?
How many users need to access the software?
- 2
- 27
- 50
Calculation Result
Potential cost with fixed licencing model per year
Potential cost with fixed licencing model per year
£ 1000
Potential cost with Causeway's floating model per year where licences can be shared with multiple users, machines, and locations
Potential cost with Causeway's floating model per year where licences can be shared with multiple users, machines, and locations
£ XX
Potential amount that you save
Potential amount that you save
£ 10000
Approving authorities in the UK accept Causeway Flow


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See how Causeway Flow works
- Accepted by approving authorities in the UK
- Compatible with Autodesk, AutoCAD® and Civil 3D® or can be used standalone
- Fully BIM compliant with state-of-the-art hydraulic SWMM5 engine
- Stayed connected with cloud licencing - access software anytime, anywhere
- In-house product experts and training to support you and your team the whole journey
- Reduce costs with subscription bundles & shared network licences
Request a sample optimal performance report
We wanted a robust, intuitive and complete solution. Causeway ticked all our boxes, and more! That’s why we were more than happy to roll the solution out to our teams worldwide.
Phillip Clay, Director at Clay Civil Consulting
Ready to switch your drainage design solution when you are
Our dedicated migration experts are here to help you confidently move your team onto Causeway Flow seamlessly.
Switching is straightforward
We will start with your business’s goals to ensure we tailor your migration for your success. This includes:
- An initial discovery call to find out your business requirements
- Software demo with one of our Design specialists
- An onboarding process including system implementation, introduction user session, and a detailed technical and process review by our in-house expert to support your migration process
We have your back
We continue to work closely with you to ensure your team's success. Whether it's importing files or customising design parameters, we are ready to answer your questions. This includes:
- Review sessions to check in on progress and provide recommendations
- Best-in-class training courses available to upskill engineers and ensure continuous learning
- In-house Support team to answer your questions and provide best practices
- Causeway Learn, our powerful online learning management platform that enables your team to learn anywhere, anytime
- 24/7 Support Portal & Knowledge Base
Explore our resources
Webinar

Watch now | Deep Dive: Is Causeway Flow the right fit for you?
Watch now | Deep Dive: Is Causeway Flow the right fit for you?
Watch now on demand for free | Deep Dive: Is Causeway Flow the right fit for you?
Watch nowInfographic

Free Download: 5 Things to Consider Before Switching to a New Drainage Design Software
Free Download: 5 Things to Consider Before Switching to a New Drainage Design Software
Ready to pull the plug on your current drainage design software? Download our handy infographic.
Download nowWebinar

Watch now | Sustainable drainage design: Maximising benefits from Brownfield and Greenfield sites
Watch now | Sustainable drainage design: Maximising benefits from Brownfield and Greenfield sites
Watch our free webinar on Sustainable drainage design: Maximising benefits from Brownfield and Greenfield Sites with Anthony McCloy from McCloy Consulting
Watch nowFrequently asked questions


Causeway Flow is a hydraulic modelling solution for the design and analysis of optimal, compliant and cost-effective storm and foul water drainage networks, developed for organisations looking for a robust, intuitive and complete solution.
Discover more about Causeway Flow here.


Causeway Flow offers more flexibility in drainage designs and does not limit to designing within fixed guidelines or "best practices". This means users have the freedom and flexibility to design any network imaginable.
Engineers have the ability to model complex (non-dendritic) networks that contain nodes with multiple outgoing connections, bifurcations, parallel runs, or looped systems. Additionally, they can mix and match designed and existing network segments and simulate them as routine without requiring extra or external tools.
This flexibility means engineers aren't limited to outdated or obsolete software architecture.
Additionally, users can draw the exact shape and dimension of a flow-through pond structure. Our unique Flow-Through Pond technology makes Causeway Flow the only drainage design software that supports the exact shape and dimension of storage/infiltration in its true geographical locations.
Causeway Flow utilises a robust, accurate and stable engine called SWMM 5 that uses a dynamic wave routing method.


Causeway Flow users have the advantage of extra flexibility as the architecture allows them to design any SuDS structure without requiring a template or fixed structure types.
Additionally, users can draw the exact shape and dimension of a flow-through pond structure. Our unique Flow-Through Pond technology makes Causeway Flow the only drainage design software that supports the exact shape and dimension of storage/infiltration in its true geographical locations.
Causeway Flow users can define separate online controls for each outgoing link and create a full 3D BIM model that includes thicknesses, bedding and surround materials, trench backfills, and much more. This allows for the deployment of full BIM compatibility.


Causeway Flow benefits from state-of-the-art technology instead of working with outdated software. Additionally, it has full hydraulic modelling capability. MasterDRAIN lacks that feature which means optimisations of the drainage capacity aren't accurately represented and don't lead to value engineering.
Causeway Flow users also benefit from the ability to create detailed sustainable drainage system (SuDS) designs. Flow also has outline design capability; This allows users to design from the initial concept through to detailed designs ready for approval. All in a single, complete package.
Causeway Flow allows for data exchange with CAD and GIS platforms to shorten the design time.
Additionally, our unique Flow-Through Pond technology makes Causeway Flow the only drainage design software that supports the exact shape and dimension of storage/infiltration in its true geographical locations.


It’s an exciting time for engineers looking for better ways to work, and we’re delighted you're interested.
Simply get in touch and one of our expert Design specialists will contact you.
If you're an existing customer, you can get in touch with your dedicated Account Manager who can assist you.
If you don't have your Account Manager's contact details, you can email us at help@causeway.com and we can help!


Not a problem. We understand you can't switch overnight to a brand new design platform, which is why you've got compatibility between MicroDrainage and Causeway Flow.
If you're an existing customer, you can get in touch with your dedicated Account Manager who can assist you.
If you don't have your Account Manager's contact details, you can email us at help@causeway.com.


Drop us an email at help@causeway.com or give us a call at +44 (0) 1628 552000 — we'll be happy to answer your questions!
If you're an existing customer, you can get in touch with your dedicated Account Manager who can assist you.
If you don't have your Account Manager's contact details, you can email us at help@causeway.com.