According to the DOT, pier 22 has moved another half inch over the past two days.
"We thought originally it was a false positive," explained Kim Rudat, DOT Regional Communication Manager. "We went out and re-measured it and it turns out, yes, it did sink a half inch. Why it did that, we are not sure."
Rudat said extensive work has been done below the bridge and around the pier and that could have caused more movement.
"We had to dig down so there was some drilling," he said. "There was some pounding as we went down into the soil adjacent to the pier and the piling. It could have affected it adversely."
Now the DOT is planning a temporary solution. Two support towers to hold the stretch of the sagging bridge around pier 22.
"This will stabilize the bridge so that even if this would settle more, this will protect the rest of the bridge," added Rudat.
The DOT does not yet know when work on the temporary towers will begin. But they do estimate the cost to be between $1 million and $2 million. That money will come from federal emergency funds.