Puente de Marquez, Historic bridge in Moreno Partido, Argentina.

Puente de Marquez is a historic bridge in Moreno Partido that spans 27 meters across the Reconquista River. The original wooden structure built from ñandubay timber connected two river banks, but was replaced in 1964 with a concrete bridge that was later demolished in 1997.

The bridge was built in 1773 by Pablo Marquez with authorization from Buenos Aires Cabildo and helped connect the region during recurring floods. A significant battle between Unitarians and Federalists took place at the bridge in 1829, resulting in victory for forces led by Juan Manuel de Rosas.

In the 1930s and 1940s, the stretch of the Reconquista between Puente de Márquez and Puente Roca drew neighbours from Ituzaingó for swimming, fishing and sport. Local swimmer Gorki Grana trained in these waters, and in 1935 Eduardo Vadell canoed from the bridge to Carmelo, Uruguay, in seven days. Private recreation clubs, including one for tram workers, stood nearby.

The 1964 concrete replacement was demolished in 1997 during construction of the Acceso Oeste motorway, about 25 metres downstream of the present collector-road bridge toward Moreno; the company claimed it did not know the bridge's historical value. A bronze plaque on the railing at the bridge entrance recorded the 1964 national monument declaration (decree 9292/64). A promised replica was never built beyond press statements.

The bridge's bronze commemorative plaque, mounted on the railing at the entrance, cited its 1964 declaration as a National Historic Site under decree 9292/64. The 1964 concrete replacement was demolished in 1997 during construction of the Acceso Oeste motorway; the company claimed it was unaware of the bridge's historical value, and a promised replica was never built.