[ProtectOurFreedom]

But they couldn’t have left that vehicle / jacking system in place for the next year while the bridge was completed. That would have blocked the road for an entire year. I’m guessing that the truss was designed to be self-supporting for its dead load and the tower / stayed cables would have added load capacity to support the live load.

[dennisw]

But they couldn’t have left that vehicle / jacking system in place for the next year while the bridge was completed.

Should have left a small jacking system just in the median strip to act as a center pillar until the suspension cables were installed.