The structure was updated in 1889, using wrought-iron for the central span.

Its opened central span is one the city symbols.

It had a central span raised between two towers.

Their quarters were in the central span of the house, upstairs.

The central span sagged soon after it was built and has been repaired many times.

On September 11, 1916, when the central span was being raised into position, it fell into the river, killing 13 workers.

The fallen central span still lies at the bottom of the river.

The central span was a light boat, designed to be removed at night for security.

An image of the bridge without the central span can be seen on the link below.

The approaches rise from ground level to meet the central span, which is a pointed arch high over the deepest part of the river.