From Blueprint to Reality: The Art of Temporary Bridge Installation

Temporary bridge systems provide a versatile, cost-effective, and rapid solution to infrastructure needs. From temporary event footbridges to long-term pedestrian crossings, modular bridges offer unmatched flexibility.

At Mitchell Bridges, we specialise in temporary modular, prefabricated bridge installations, ensuring fast deployment and minimal disruption across rail networks, festivals, and construction sites. But what goes into turning a modular bridge from a concept into reality? Here’s a behind-the-scenes look at the design, manufacturing, and installation process that makes these structures possible.

What is a Modular Bridge?

A modular bridge is designed using pre-engineered components, allowing for rapid assembly and disassembly. These structures come in various configurations, making them adaptable to different site conditions and project requirements.

We have a  huge range of stock but typical modular bridge components include:
✔ Lower stair sections
✔ Main and secondary towers
✔ Upper stair sections
✔ Bridge spans (up to 42m in length)

Because these elements are prefabricated and stored, they can be quickly deployed and installed, making modular bridges ideal for time-sensitive projects.

‍

Step 1: Design & Site Assessments

Before a modular bridge can be installed, detailed site planning is essential. This involves:

1. Initial Site Visit

• Assessing ground conditions to determine foundation stability.
• Reviewing access arrangements for transporting and positioning bridge components.

2. Site-Specific Surveys & Engineering Reports

• Topographical survey – mapping elevation and terrain.
• Ground investigation report – analysing soil composition, borehole logs, and strength tests.
• Bearing capacity tests – assessing whether the ground can support the structure.

3. Site-Specific Bridge Design

• Using the survey data to adapt the modular bridge for the location.
• Ensuring compliance with structural safety and environmental requirements.

By tailoring each bridge to site-specific conditions, we ensure structural integrity, longevity, and safe usage.

Step 2: Fabrication & Pre-Assembly

‍

One of the key advantages of modular bridges is their pre-engineered stock availability. This allows for rapid deployment without the need for lengthy manufacturing times.

Stocked vs Bespoke Fabrication

• Standard Modular Bridges: We have a large range of ready-to-go components in stock, allowing us to quickly meet project demands without the delay of custom fabrication.
• Custom Designs or Adaptations: For more complex or unique project requirements, we work alongside design consultants such as Scott, White & Hookins to create bespoke modifications, ensuring the bridge perfectly fits the specific needs of the site.
• Steel Fabrication: In instances where custom components are required, we efficiently order and send steelwork to our trusted fabricators, ensuring precision and quality.

By combining pre-fabricated efficiency with custom adaptability, we can meet the demands of any project, big or small.

Step 3: Installation – Turning Design into Reality

Once the bridge components are ready, we move into the on-site installation phase. This requires precision engineering, expert logistics, and the right access conditions.

Key Stages of Installation:

1️⃣ Transporting bridges and cranes to site – Ensuring the correct machinery and workforce are in place.
2️⃣ Laying foundation components – Crucial for stability, particularly for temporary event bridges.
3️⃣ Installing the main towers – Forming the primary structure of the bridge.
4️⃣ Adding secondary elements – Including staircases and upper walkway sections.
5️⃣ Final bridge span installation – Completing the structure with the longest modular component.

With this methodical approach, we ensure that each modular bridge is installed quickly and efficiently, keeping projects on schedule and within budget.

Why Choose Modular Bridges?

The benefits of modular bridge systems make them an ideal choice for temporary and permanent applications across multiple industries:

✅ Speed & Efficiency – Faster deployment compared to traditional bridge construction.
✅ Cost-Effectiveness – Reduced material waste and labour costs.
✅ Adaptability – Can be modified or relocated as project needs evolve.
✅ Minimal Disruption – Quick installation ensures businesses, events, or rail services remain operational.

Whether you need a temporary event bridge, a construction site crossing, or a pedestrian access solution, Mitchell Bridges delivers modular bridge solutions that are engineered for efficiency.

Let’s Build Your Bridge – Contact Mitchell Bridges Today

Need a modular bridge for your next project? Whether it’s a festival, rail station, or construction site, our team is ready to provide expert solutions.

📞Get in touch today to discuss your requirements and find out how we can deliver the perfect bridge for your site.

‍