The first bridge on this site was erected in 1820. It was built this way because the lake is too deep for traditional pilings.
The seventh bridge was closed to traffic and torn down in 2008 for replacement due to failure of its flotation system, which was based on foam-filled barrels.
The current bridge, the eighth at this location, is supported by fiber-reinforced polymer pontoons.
It is kinda weird to drive over if you are not use to it.