There will be a single lane of traffic in each direction of I - 15 .
Interstate 15 traffic has been shifted to southbound lanes at Milepost 16 in the Virgin River Gorge in Arizona for bridge demolition .
There will be a single lane of traffic in each direction of Interstate 15     .
Interstate 15 traffic has been shifted to southbound lanes at Milepost 16 in the Virgin River Gorge in Arizona for bridge demolition .