For six long hours Wednesday, an estimated 20 ton boulder sat in the westbound lane of Highway 50, snarling traffic in both directions for miles.
"A big impact," said Officer Phillip McCain with the California Highway Patrol.
To make matters worse, snow and cold temperatures hampered the job Caltrans crews were faced with.
It was decided that breaking the big rock into smaller, easier-to-manage pieces was their best option.
So crews placed about three pounds of dynamite around the boulder and blew it apart.
"We got the loader, we got trucks here ... so, it's in good-size pieces, and we'll clear the lanes and open it back up," said Bill Nitto with CalTrans.
Seven hours after the boulder first came dislodged and landed in the roadway, traffic along Highway 50 returned to normal.