The world's longest timber-towered suspension bridge, SkyBridge Michigan at Boyne Mountain (USA), is now open after months of construction.

The timber design is a nod to the logging industry history in Northern Michigan, and the lumber was sourced from Matelski Lumber in Boyne Falls.

It's built between the peaks of McLouth to Disciples Ridge at Boyne Mountain and is modelled after the famous Gatlinburg SkyBridge at Boyne's sister property, the Gatlinburg SkyLift Park in Tennessee.

The towers on either end of the bridge are made of wood timber from Boyne Falls. The main cable is made of galvanized steel and the walking surface uses steel framing with a pultruded grating deck.

In all, the bridge is 118 feet high and 1,203 feet long. Guests will ride one of several chairlifts to the mountain top and take a walk across the bridge. It was designed by Experiential Resources, which also designed the Gatlinburg SkyBridge.

The bridge will remain open as long as wind gusts remain at or below 56 kph. Lightning or thunder within a 24km radius will also require an evacuation. Rain, however, is fine as long as the walking surface remains clear.

A portion of the bridge includes see-through glass flooring, offering an unobstructed view of the valley floor below.