At a Glance
- Truck dumped “road base” onto I-35 northbound lanes near McCarty Lane exit (Exit 201).
- Cleanup crews are working to clear debris, expected to take several hours.
- Drivers are advised to avoid the area and seek alternate routes.
- Why it matters: The blockage is causing significant traffic backups on a major commuter artery.
A truck accident on Interstate 35 in San Marcos, Texas, has left a pile of road base in the right two lanes just before the McCarty Lane exit. San Marcos Police are conducting a cleanup operation that could keep the lanes closed for hours, prompting drivers to find alternative routes.
Debris Incident
San Marcos Police posted on Facebook that the debris was dumped by a truck in the right two lanes of northbound I-35. The incident occurred just before the McCarty Lane exit (Exit 201).

- Truck dumped road base
- Police posted on Facebook
- Drivers advised to avoid area
Traffic Impact
The blockage is already causing traffic to back up on both sides of the highway. Cleanup crews are expected to take several hours to remove the debris, during which traffic will likely be diverted.
Key Takeaways
- Debris dumped on I-35 near McCarty Lane exit
- Cleanup expected to last several hours
- Drivers should seek alternate routes
The incident highlights the vulnerability of major highways to sudden debris incidents and the importance of quick response to minimize traffic disruption.

