The Puente Ingeniero Ernesto Uriegas, best known as the Puente de Fierro (English: Iron Bridge), is a twin-span bridge found along Vía Morelos Avenue, in San Cristóbal, Ecatepec de Morelos, State of Mexico.

There is also a persistent legend about its origins that mentions that Gustave Eiffel, at the request of president Porfirio Díaz, designed the bridge in the 1870s.

[1] According to municipal historian Angélica Rivero López, the bridge was completed in July 1896 to be operated by the National Railroad Company (later Ferrocarriles Nacionales de México).

Its materials were cast in the United Kingdom and gained the nickname of "English Bridge of San Cristóbal".

[2] There is a legend that says that the bridge was designed by Gustave Eiffel at the request of president Porfirio Díaz.

As time passed, the museum declined; due to crime in the area, vandalism, and the lack of maintenance of the bridge, it was closed in 2016.

[1] When it was adapted into a museum, the structure was fitted with a frame of metal tubes to support polycarbonate sheets and tiles were added to the floor.

The elements added for the operation of the museum were removed and a surveillance module was installed to reduce crime in the area.