Triangle Ltd

Delivering Innovative Design & Build Solutions for Complex Infrastructure Projects

Turning a Complex Constraint into a Practical, Buildable Solution

At Triangle, many of the projects we are involved in are not standard, off-the-shelf solutions. They require a more considered approach, combining engineering expertise, bespoke design, and practical delivery to overcome complex challenges.

Our design and build capability has developed around exactly these types of projects: where requirements are unique, constraints are significant, and a tailored solution is essential.

We are often brought into projects where:

In these situations, our role is not just to deliver, but to develop a solution that works in practice.

Project Spotlight: Bespoke Utility Cable Enclosure on a Highway Bridge

This recent project highlights our ability to deliver innovative, first-of-its-kind solutions under real-world constraints. We were tasked with providing a solution to safely route utility cables across an existing highway bridge, a challenge that required both structural sensitivity and practical installation within a live environment.

Rather than relying on standard containment systems that didn’t suit the needs of this project, we developed a bespoke design using precast concrete blockwork, incorporating a hollow internal section to house and protect the utility services. One of the key successes of this project was the ability to balance structural integrity with practical installation in a highly constrained environment. Working on an existing highway bridge meant that any solution had to respect the limitations of the structure while also accommodating the safe routing and long-term protection of critical utility services. By developing a bespoke precast concrete system with an integrated hollow section, we were able to create a solution that met these requirements without the need for extensive structural alteration.

This solution was designed and tailored specifically to the spatial and structural constraints of the site to integrate with the existing bridge structure, whilst being engineered to safely encase and protect multiple utility cables. Our team installed the structures alongside a live highway with minimal disruption.

By combining design, engineering, and fabrication expertise, we were able to deliver a solution that met both functional and structural requirements of our client.

Bespoke precast concrete cable enclosure installed on an existing highway bridge to safely house utility services.

Our integrated design and build model allows us to take innovative ideas from concept through to delivery. This includes:

Developing initial design concepts

Engineering and refining solutions

Fabricating bespoke components

Managing installation and construction

“From the outset, it was clear that a standard solution wouldn’t be suitable for this scheme. Developing a bespoke precast design allowed us to safely integrate the utility services within the existing structure while maintaining programme and minimising impact on the live highway.” Triangle Design Team

We work with clients across infrastructure, utilities, and public sector projects, often supporting schemes where:

Leveraging Fabrication & Engineering Expertise

Our background in structural steel and infrastructure delivery allows us to approach projects with a practical mindset. This enables us to design solutions that are buildable from the outset. Our design teams are able to create custom components where required, ensuring quality and precision throughout delivery

This combination of design and delivery capability is what allows us to take on more complex and unconventional projects.

Our role is to provide confidence that even the most complex challenges can be successfully delivered. The goal is not simply to design something new but to ensure it works effectively, can be constructed efficiently, and delivers long-term value. This balance between innovation and practicality underpins every project we deliver.

Get in Touch If you are working on a project that requires a bespoke or innovative solution, our team would be happy to discuss how we can support you. 

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