The Indianapolis Motor Speedway (IMS) has always been more than just a racetrack; it is a monument to American motorsport history. Recent excavations have unveiled sections of the original paving bricks that formed the legendary “Brickyard,” offering a thrilling glimpse into the past.

The Discovery at Turn 2

In late 2025, IMS crews undertook a significant renovation at the exit of Turn 2, prompted by concerns over persistent bumps affecting race performance. A seven-inch layer of asphalt was removed, revealing intact sections of the original 1909 brick surface. The excavation not only showcased the bricks, which remained remarkably smooth despite their age, but also unearthed the foundational crushed stone and tar that comprised the track’s earliest surface.

According to Road & Track, this project was documented in an 18-minute video series on the IMS YouTube channel, detailing the careful process of uncovering and preserving this historical treasure.

A Layered Legacy

The original IMS surface was laid in 1909 using approximately 3.2 million Culver Block clay bricks. Over the years, these bricks were progressively covered with asphalt, with only a symbolic 3-foot brick strip remaining at the start/finish line after a complete repaving in the early 1960s. The layers beneath the asphalt tell a complex story of racing history, as the bricks were designed to withstand the rigors of high-speed competition.

• Bricks: Red clay, measuring approximately 9″ x 4″ x 3.25″, weighing 9–10 pounds each.
• Foundation: Initial crushed stone and tar layer established the first racing surface.
• Modern Techniques: Current repaving involves sophisticated assessment and stabilization of subsurfaces to ensure track integrity.

Preserving Motorsport Heritage

The unearthed bricks are not just relics; they represent a vital part of IMS’s identity and heritage. As the track continues to evolve, balancing modern safety standards with historical preservation poses a unique challenge. The remaining brick strip and the artifacts recovered during excavations hold significant cultural value, prompting discussions about conservation and public engagement.

As noted by IMS, maintaining the historical fabric while ensuring a smooth racing surface is a complex task that involves ongoing monitoring and careful management.

Implications for Future Racing

The condition of the track’s subsurface layers can significantly impact vehicle dynamics and driver performance. Issues such as differential settlement or cracked bricks can lead to unexpected bumps, affecting everything from tire wear to suspension setup. The recent excavation at Turn 2 illustrates how proactive measures can address these challenges, ensuring the track remains competitive for future generations.

With ongoing advancements in track management and preservation techniques, IMS is poised to honor its storied past while embracing the future of racing.