A 2.5-million-pound boulder is now nothing but rubble after road crews blasted the massive rock Sunday night.

The boulder was part of a huge rockslide that destroyed a stretch of highway in southwestern Colorado Friday afternoon, leaving crews with a daunting cleanup job. It wasn’t even the largest boulder; a boulder weighing a whopping 8.5 million pounds tumbled over the road during the slide and left an 8-foot-deep trench where pavement once was.

“It’s truly mind-boggling that something that big came down,” said Mike McVaugh, CDOT Regional Transportation director for southwest Colorado.

Rockslide with house-size boulders destroys portion of southwest Colorado highway

The Colorado Department of Transportation says trucks are hauling away fragments of the 1,150-ton (1,047-metric ton) rock from state Highway 145 while workers build a temporary bypass.

That bypass could open Tuesday or Wednesday.

The Cortez Journal reports workers drilled 15-foot-deep holes into the rock to insert explosives before blasting it apart on Sunday.

That was done after workers checked the stability of a ridgeline 1,000 feet above (305 meters) from where that boulder and another fell on Friday.

The second boulder crashed across the road, creating an eight-foot trench. No one was hurt.

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