Caltrans and UC Pavement Research Center partner on long-life pavement

When we talk about infrastructure, the conversation often drifts to roadways, bike trails, bridges and toll lanes. But what if we shift the focus to something more subtle yet just as critical: the longevity of the materials we build with? This is where the innovative work being done by the University of California Pavement Research Center (UCPRC), located at Davis and Berkeley, stands out.  

Since the 1950’s, UCPRC has been at the forefront of research that is reshaping the way California approaches infrastructure, specifically through its groundbreaking work on long-life pavement—a crucial innovation that is now a hallmark of the state’s efficiency in infrastructure projects. The university’s research has already generated significant returns in terms of quality, sustainability, and efficiency. 

What is long-life pavement? 

Long-life pavement, as the name suggests, is designed to last much longer than roads paved with traditional asphalt and concrete. Research by UCPRC has revealed that using innovative materials, strategies for how to put the pavement structure together, and construction quality has created more durable roads that require less frequent repairs, thus minimizing long-term maintenance costs and reducing traffic disruptions for Californians. Pavements that were previously designed for 20-40 years are now expected to last 50 years or longer. 

Their findings have been incorporated into state-wide projects, making California’s roadways smoother, more reliable, and ultimately safer. This research aligns with the broader goals of Building California under SB 1, which is focused not just on transportation but also on making smarter, longer-lasting investments in our state’s infrastructure as stated in the law. 

Long-life projects have garnered numerous awards for excellence and innovation, and the Sacramento I-5 Corridor Enhancement project was recognized by the national Asphalt Pavement Alliance at the January 26, 2023 meeting of the California Transportation Commission held in Roseville. The project focused on rehabilitating 67 lane miles of pavement, adding new carpool lanes, and completing extensive shoulder reconstruction. The use of long-life pavement is expected to save $37 million in reduced maintenance and rehabilitation costs over the lifespan of the pavement. 

Collaboration between academia and state infrastructure 

The partnership between UCPRC and Caltrans is a perfect example of the kind of innovation that can only come from academic research. Universities, unlike private entities, are uniquely equipped to undertake long-term, high-risk projects that can revolutionize industries. Their work on improving concrete quality—there are over 1,000 types of concrete alone—and developing new pavement designs demonstrates the vast potential for academic contributions to public infrastructure. 

By focusing on the small details like pavement surface texture and levels of compaction, UCPRC researchers have developed methods that will save the state millions of dollars in future repairs, contributing directly to Caltrans’ efficiency goals. 

Beyond pavement: a full infrastructure approach 

While transportation dominates the conversation around California’s infrastructure, Building California is working to show that infrastructure is more than just roads and bridges. California’s future also involves balancing urban development, environmental sustainability, climate change resilience, and the growing demand for electric vehicles (EVs) and clean energy solutions. As the state rolls out the first-ever dynamic toll lanes between Sacramento and San Francisco—lanes that use AI to monitor traffic and manage congestion—it’s clear that infrastructure in California is becoming more tech-driven and people-focused. 

The future of infrastructure: a human-driven effort 

It’s easy to get bogged down in the numbers—miles of roadway, tons of asphalt and concrete, millions in funding—but at its core, California’s infrastructure renaissance is about the people driving these innovations. It’s about the researchers at UCPRC who quietly transform how we think about roads. It’s about the teams at Caltrans and Building California who ensure that these innovations get applied where they are most needed. And it’s about every Californian who benefits from smoother roads, cleaner air, and safer transportation options. 

As California moves forward with its infrastructure goals, one thing is clear: the state’s success hinges not just on big-budget projects but on small, thoughtful innovations like those coming out of UCPRC. These contributions don’t just help us build today—they help us build for the future. 

For more information on Caltrans transportation and infrastructure projects, including efficiency reports, visit Build.ca.gov.