Puente de la Unidad or Viaducto de la Unidad is a cable-stayed bridge

Cable-stayed bridge

A cable-stayed bridge is a bridge that consists of one or more columns , with cables supporting the bridge deck....

 designed by Óscar Bulnes that crosses the Santa Catarina River and connects the cities of Monterrey

Monterrey

Monterrey , is the capital city of the northeastern state of Nuevo León in the country of Mexico. The city is anchor to the third-largest metropolitan area in Mexico and is ranked as the ninth-largest city in the nation. Monterrey serves as a commercial center in the north of the country and is the...

 and San Pedro Garza García

San Pedro Garza García

San Pedro Garza García is a city-municipality of the Mexican state of Nuevo León and is part of Monterrey's Metropolitan Area, based on the suburban North American model...

 in the Mexican state of Nuevo León

Nuevo León

Nuevo León It is located in Northeastern Mexico. It is bordered by the states of Tamaulipas to the north and east, San Luis Potosí to the south, and Coahuila to the west. To the north, Nuevo León has a 15 kilometer stretch of the U.S.-Mexico border adjacent to the U.S...

. It is part of a circuit called "Circuito La Unidad", which would consist of the interconnection of a series of Avenues.

History

It was finished in 2003 and has been controversial even before its completion because the river it crosses is dry almost all year long, and the cost of building this 4 lane cable-stayed bridge would be the same as for building a 6 lane conventional bridge. Frequently it was argued that the costly bridge would aid a relative few, versus spending the money for the rapid transit system of Metrorrey.