Page 20 - FCC-N9-eng

FCC’s Mexican subsidiary is a regular
participant in major Mexican infras-
tructure projects, such as Coatzacoal-
cos Underwater Tunnel, an exemplary
piece of work that created a way to
travel between the most important
petrochemical complex in the state of
Veracruz and the Gulf of Mexico. Glo-
balvía, another FCC Group company,
built the road between Nuevo Necaxa
and Tihuatlán and has been operating
it since 2007.
FCC in México This 36-kilometre-long section, which is
being built by a joint venture pairing FCC
México with the Mexican frm ICA, crosses
the eastern Sierra Madre mountains. The
extreme roughness of the terrain has re-
quired the construction of six tunnels and
seven viaducts, adding up to a total of more
than six kilometres.
San Marcos Viaduct was designed by FCC
Construcción’s Technical Services. It is 850
metres long and has 180-metre spans. Its
single deck is 18.7 metres wide, enough to
accommodate the highway’s traffc in both
directions.
Pier 4, which is 208 metres tall, was built
with the help of self-climbing formwork. The
most advanced formwork and concrete-
pumping equipment in existence was used
in the pier’s construction, enabling work to
proceed at a high-performance pace wi-
thout a single hitch, despite the diffculties
posed by access issues.
Work is currently proceeding on the cons-
truction of the deck, a progressive cantile-
ver hopping from pier to pier. The viaduct is
scheduled to be fnished by autumn 2012.