# I-40 Flood Wall Project

> I-40 highway rebuilds to withstand 500-year flood after 2024 storm.
- Title: I-40 Flood Wall Project · The Drive | Shortify
- Summary: I-40 highway rebuilds to withstand 500-year flood after 2024 storm. I-40 in Tennessee and North Carolina is being rebuilt with a 800,000-yard concrete wall…
- Keywords: interstate 40, tennessee, north carolina, hurricane helene, 500-year flood, roller compacted concrete, interlocking pipe pile, cars, technology, I-40, Flood, Wall
- Source: The Drive — https://thedrive.com/news/building-a-mountain-highway-to-withstand-a-500-year-flood-is-the-definition-of-a-big-job
- Author: Stephen Edelstein
- Published: 2026-10-11T16:00:00+00:00
- Read time: 1 min
- Topics: interstate 40, tennessee, north carolina, hurricane helene, 500-year flood, roller compacted concrete, interlocking pipe pile, cars, technology
## I-40 damaged by 2024 storm
Hurricane Helene washed portions of Interstate 40 on the Tennessee/North Carolina border into the Pigeon River in 2024.
## Rebuilding with flood defenses
The project uses 800,000 yards of roller-compacted concrete to prevent future flooding after Hurricane Helene.
## Additional flood protection
An interlocking pipe pile system with 400,000 linear feet of 36-inch steel pipe forms the first line of defense against floodwaters.
## Temporary infrastructure built
North Carolina built a temporary quarry and concrete-mixing plants to supply materials for the 800,000-yard concrete wall.
## Key takeaway

I-40 in Tennessee and North Carolina is being rebuilt with a 800,000-yard concrete wall to prevent future flooding after Hurricane Helene damaged it in 2024.