Houston Transtar camera captured flames erupting into the air just after 5 a.m. on Monday.
The fires were near the Chimney Rock entrance ramp onto US-59. One ramp lane was closed.
The fires were in the cabs of two excavators, but no workers were present at the time.
The excavators are valued at $500,000 and are destroyed after being burned.
Investigators are working to find out how the fires started.
Heavy damage to the excavators, no workers were present when both machines started burning. pic.twitter.com/oEnhXloPJ3— Jeff Ehling (@JeffEhlingABC13) July 8, 2019
ABC13 reporter Jeff Ehling is on the scene.
This is a developing story. Stay with Eyewitness News for updates.
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