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The "México - Tuxpan" highway is one of Mexico’s major communication projects, and will link the capital city with the coast town of Tuxpan, in the Gulf of Mexico. This highway means an enormous investment, not only because of the 293 km-long way, but also due to the country’s complicated orographical conditions, which have forced to project 2.5 km of bridges and 4 km of tunnels, and to prove an endless number of challenges to the engineers. In the State of Puebla, for the 36.7 km-long section between Necaxa and Ávila Camacho alone, 16 bridges have been projected, and among all of them stands out the 850 m-long San Marco bridge.
The cranes at the San Marco bridge have a maximum load of 18 t, have been erected with their maximum jib-length, 74 m, and can load up to 2,700 kg at the jib end. When the project is close to be finished, the cranes will reach spectacular heights, due to Linden Comansa’s climbing system and a large number of ties. From pillar 2 to pillar 6 of the bridge, the cranes will reach heights of 105, 198, 244, 140 and 75 m respectively.
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Mexico Builds Bridges 
Five Flat-Top 21 LC 290 18 t from Linden Comansa are being used in this bridge, especially for the construction of the pillars. One of them will be more than 200 m high, which will make it one of the world’s most particular structures, and the planet’s second highest bridge over pillars, after the Millau viaduct in France.
