The widening required a new bridge at Ferry Street.

The proposal requires a 3,465-foot bridge, rising to a height of 85 feet and touching down on public park land in Glen Island.

The construction of the promenade required a long pedestrian bridge over the power station's docks.

This required a bridge over the South Esk; the total length was 1,011 feet.

However, this disadvantage poses less of a problem in cases where the arterial, or non-freeway road already requires a very wide bridge.

Continued expansion of the works required a second bridge to be constructed in 1922, to carry the railway over the river channel.

The resulting gap at Dearborn Street was deep enough to require a bridge running roughly north-south.

US 380 crosses the extreme northern end, requiring a short bridge.

A tunnel encountered a large "void" or cavern in the mountain that required a bridge within the tunnel.

In addition, the need to provide deepwater access for shipping would require either a high bridge or drawbridge, adding to the potential cost.