Cages into a complete upright position
The DOT said drivers really do need to keep their eyes on the car in front of them from here on out because they're building the foundation of the bridge. That requires lifting 135 feet long steel cages into a complete upright position to insert them into a hole. When completely vertical it's like a 13-story building.
"It's going to cover both those lanes plus the entire working area if this cage were to fall," said engineer Wanda James. "We want to make sure that what we're doing is safe and in order to do that we have to slow traffic down or stop them possibly, and allow us the 15 to 20 minutes that it takes to do this operation."
They have developed a plan that uses a technique known as a rolling roadblock to handle traffic.
A work truck finds a gap in traffic to get out in front and either stop or slow drivers down prior to the work zone. Then once they get the all clear, they move out of the way and let traffic resume to normal speed.
The DOT has planned to implement the road block during non-peak hours during the day because they can't do it at night due to lighting constraints.
"Everything is not 100 percent full-proof, but we try to do our homework and pick the best times for the traveling public to do this type of operation," said engineer Jackson Provost.
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