Enclosure with reinforced concrete structure in two ducts, each 4 meters high by 4 meters wide, concrete walls 30 to 50 centimeters thick. Over 1,000 cubic meters of concrete were placed in a single day.

Spans more than 9 kilometers in several stages, with Grupo Alfer executing over 50%. Located between Eje 1 Norte and Periférico Norte in Mexico City.

Built in various stages between 1994 and 2006.
DGCOH

Contracts
4-33-2-0865
4-33-2-0994
5-111-2-0452
6-C04-2-0024
7-CO4-2-0759
FIDEICOMISO 1928
PSVM/OD/EGC/10/06
6-C04-2-0028