Built using a cut-and cover method, concrete segments of the vault were pre-cast and then lowered into the station.

Further there is a tower built of prefabricated concrete segments for mobile phone services close to the transmitter building.

The original bridges were opened at a short ceremony on December 21, 1965 and were each constructed with 433 65-foot concrete segments.

The erector is a rotating system which picks up precast concrete segments and places them in the desired position.

It usually consists of precast concrete segments which form rings.

The bridge was constructed of pre-cast concrete segments using top-down construction.

Superficial damage to the surface of the concrete segments was evident along a further 190 metres of tunnel length.

A total of 748 concrete segments, which are supported by 17 piers, were placed for the new bridge.

The factory was very efficient and used steam to accelerate the curing of the concrete segments.

The main feature is a 4-by-10-foot concrete segment of the wall, still bearing graffiti.