Updated at 4:50 p.m. on Thursday, Aug. 25, 2023:
I-70 reopened around 4:43 p.m.
Our original story continues below.
Danger from loose rocks led the Colorado Department of Transportation to close a section of Interstate 70 near Idaho Springs on Thursday afternoon.
CDOT also had closed part of U.S. 40, which parallels I-70, but reopened that shortly after 4 p.m.