Major Rock Blasting Complete in Eastbound I-70 Tunnel
After more than three months of closing eastbound and westbound I-70 for up to 30 minutes at a time, the Colorado Dept. of Transportation has completed blasting operations in the eastbound Twin Tunnel near Idaho Springs.
The Twin Tunnels project is one of the first projects under way to improve the safety and mobility along the I-70 mountain corridor. The project includes adding one eastbound lane between East Idaho Springs and U.S. 6 and expanding the eastbound bore of the Twin Tunnels.