1952
The company builds its first pre-stressed concrete bridge in Lorient.
The next year, the Doubs d’Orchamps bridge benefits from the same technique.
Length 145 m
5 x 28-m wide spans
30 beams pre-stressed longitudinally and transversally
The company builds its first pre-stressed concrete bridge in Lorient.
The next year, the Doubs d’Orchamps bridge benefits from the same technique.
Length 145 m
5 x 28-m wide spans
30 beams pre-stressed longitudinally and transversally