The single-span overall roof was the largest such structure in the world at the time of its completion.

It would be the world's longest single-span suspension bridge for 17 years.

The bridge construction is significant because it was one of the first truly long single-span bridges constructed in the state.

When the station opened, the arched train shed was the largest single-span roof in the world.

The elliptical structure, 330 feet long, will be the largest single-span glasshouse in the world.

Below: The interior of the depot, with its five inspection pits and single-span roof.

It was first built in 1931 as a single-span pedestrian bridge carrying heating pipes.

It is now the seventh longest single-span suspension bridge.

William Fairbairn entered with a design for a single-span cast iron bridge.

The bridge was the longest single-span iron bridge in the world at the time.

At the time of building it was the largest single-span building in the lower North Island.

This single-span metal bridge carries Main Street over the navigation.

According to the plaque next to the arch, it is the largest such single-span archway in the world.

The station was opened in August 1873 and was located next to the single-span road bridge on the left bank of the river.

Its single-span arched roof structure is touted as the world's oldest surviving.

At the time, the trainshed was one of the largest single-span arched-roof structures in the world.

It remains the longest single-span suspension bridge in the world that one can cross on foot or by bicycle.

Single-span bridges are launched using a centrally mounted launching nose.

And there is also a single-span bridge he has designed for Alessandria, Italy, to be started in the fall.

It was a long hall with a single-span roof, full of gleaming belts, pipes, and vats.

The single-span stone arches form a dramatic accent on Independence Avenue.

The organ has a prospectus single-span wooden box and composite style, painted in gold.

In October 2005 the section of road containing the bridge was closed so that the single-span bridge could be replaced.

The bridge, one of currently 16 drivable bridges in the county, is a single-span Town truss design.

A broad single-span bridge connected the town with a dirt road that ran parallel with the north bank.