Driving Efficiency: Design-Build Delivery is Shaping the Future of Infrastructure

Design-build project delivery combines design and construction into one streamlined process-resulting in faster schedules, better collaboration and cost-effective outcomes.

In this Q&A, Jacobs Design Manager Andrew Bradshaw shares how this integrated approach is reshaping infrastructure projects across North America and how collaboration and innovation are unlocking better outcomes for communities.

What do clients gain from design-build delivery?

Design-build is fast-paced and dynamic, especially during construction. Every day brings new challenges and opportunities for creative problem-solving. Unlike traditional delivery models, working directly with contractors demands flexibility and innovation. Clients benefit from accelerated schedules, streamlined communication and design solutions tailored to real-time site conditions. It's a collaborative, agile approach that helps deliver successful outcomes.

What are the biggest challenges in design-build and alternative delivery?

Speed and risk are primary challenges, but the biggest shift is cultural. Engineers must move from serving only the owner to working closely with contractors. Success depends on finding efficient, compliant solutions that align with project goals and contractor strengths.

One of the toughest hurdles is aligning all stakeholders behind a common objective. When everyone-from owner to contractor to designer-shares the same goal, the project benefits from coordination rather than competition.

How do you help clients navigate these challenges?

Education is key. Industry groups like the Design-Build Institute of America (DBIA) offer training and best practices that help owners, engineers and contractors align from the outset. We support clients by promoting these resources and sharing lessons learned to improve outcomes across design-build projects nationally-and globally.

It's also essential to help owners understand the value of a well-written, performance-based Request for Proposal (RFP). When RFPs leave room for innovation, they lead to better projects than those that are overly prescriptive or micromanaged.

What trends are shaping the future of the industry?

Progressive Design-Build (PDB) is gaining momentum, particularly for large-scale projects. It emphasizes early collaboration, which improves cost and schedule accuracy. One of the biggest benefits is having contractors review constructability during early design stages-reducing delays, redesigns and cost overruns.

PDB also encourages continuous improvement. Engineers gain valuable feedback during early design phases, which enhances constructability and design efficiency over time.

What are the biggest opportunities ahead for design-build in North America?

North America's infrastructure is aging, especially bridges built between the 1950s and 1970s. Replacing these efficiently presents a major opportunity. Bundling smaller projects-like bridge replacements-into single design-build packages can save time and money while accelerating delivery.

Is there a project you're particularly proud of?

I've worked on many large alternative delivery projects, and I'm proud of all of them. But the MBTA Green Line Extension Project in Massachusetts stands out. I spent seven years on that project, helping increase transit access in Somerville-from 20% of residents living within walking distance of a station to 80%. It's a great example of infrastructure transforming lives.