As work begins on tunnels west of Denver, I-70 project brings long-term partial closure

DENVER I Crews began closing lanes in both directions of I-70 near Idaho Springs last week as work began to shift eastbound I-70 traffic back onto the detour route around the tunnels.
This eastbound shift took place Tuesday, and on Wednesday, crews moved westbound I-70 traffic onto the eastbound side of the highway.
Now that both directions of I-70 are shifted and traffic is no longer moving through the westbound tunnel bore, crews began tunnel…