Underspanned suspension bridge

It differs from its ancestor, the simple suspension bridge, in that the deck is raised on posts above the main cables.

Examples include Guillaume Henri Dufour's Pont des Bergues (1834);[2] and James Smith’s Micklewood Bridge.

[3] Part of the roadway on the land side of the piers of the Hammersmith Bridge was constructed in this manner.

[1] The Micklewood Bridge, constructed at Doune in Scotland, was the very first of this type.

The deck was stiff and relatively stable, owing to heavy cross-braces.

Kellams Bridge