For designers and engineers delivering certainty from model to site

ViaCon’s steel tank solutions, including our coordinated 3-in-1 system that integrates the attenuation tank, flow control manholes and carrier pipework into a single prefabricated package, provide design flexibility, sustainability and long-term performance, with a design life of up to 120 years. The system is engineered for predictable assembly and buildability, supporting programme certainty, and can be designed in accordance with CD375, with established WRC compliance and BBA certification for highway applications.

To support you from early design stage, ViaCon provides a Design Toolkit and Carbon Calculator, enabling engineers to model using our steel tank specifications from the outset. This supports informed design decisions, procurement and ESG objectives, and a clear progression from concept through to construction.

Our team is available for support before, during and after your project

Certifications & Standards

ISO 9001
BBA approved
WRC approved

Why our customers choose ViaCon UK 

High load capacity

High load capacity for trafficked areas and heavy vehicles

CD375 suitable

CD375 suitability for highways and heavy traffic

Design flexibility

Design flexibility for site constraints, with access shafts for easy maintenance

Integrated drainage

3‑in‑1 system (attenuation tank + flow control manholes + carrier pipe) saves time and money

Technical support

Technical support across design, delivery and install

Environmentally Friendly

100% recyclable steel and up to 70% lower CO₂e vs other materials

Design smarter in minutes – how it works

Create customised stormwater attenuation solutions in minutes and package everything needed for efficient coordination and confident delivery.

Tailored solutions: size and configure your steel tank system with ease.
Buoyancy and stability checks: review flotation and structural behaviour as part of the design process.
Carbon Calculator: estimate CO₂e and quantify footprint in tonnes to support ESG and procurement goals
Comprehensive resources: access to CAD drawings and detailed installation guides.
Request a quote: generate a quotation based on your specific design.

By aligning early design with our steel specifications, the Design Toolkit supports faster, more buildable solutions, supported by design calculations and installation guidance. It also allows you to evidence whole-life value through CO₂e comparisons and predictable performance, with a design life of up to 120 years.

Talk to the ViaCon team

Case studies

Complex deep‑depth, high‑volume soakaway tank solution

Deep installation with high storage volume delivered using the modular 3‑in‑1 concept to protect programme and simplify coordination.

See the case study

Harvesting rainwater for a sustainable cooling solution

When the municipal supply couldn’t meet demand, the design switched to harvesting roof rainwater. The prefabricated steel tank system installed faster and proved more cost‑effective than the originally planned concrete design. 

See the case study

FAQ

The ViaCon 3-in-1 system delivers roof drainage, surface water collection, and attenuation in one prefabricated pipe-run. Replacing multiple separate elements with a single system helps reduce installation time, on-site labour, and overall construction cost. 

ViaCon attenuation tanks can be designed for trafficked areas and highway applications in accordance with Eurocodes (LM1–LM3) and, where required, BS 5400 HA/HB loading, including a 100 kN single wheel load. 

Yes, we do both. We can supply only, or supply and install. 

Installation time varies depending on project size. Smaller projects can take a day, while larger ones may take a couple of weeks. Compared to other solutions, ViaCon tanks are quick and simple to install. 

Steel is 100% recyclable. With design optimisation and material choices, we can achieve up to 70% lower CO2e vs other materials, with robust design life and predictable performance.