Río Cruces Bridge, Triangular bridge in Valdivia, Chile

The Río Cruces Bridge is a triangular structure that crosses the river and connects Isla Teja to the suburb of Torobayo in Valdivia. The structure has two pedestrian walkways of 1.20 meters each and an 8-meter-wide roadway for two-way vehicle traffic.

Construction began on 7 December 1984 and ended on 15 February 1987; the bridge opened on 1 May 1987, when Augusto Pinochet cut the ribbon and crossed it in a ceremony attended by regional authorities and press. It replaced the ferry from La Mulatas to Torobayo as the main access to Niebla, also serving Punucapa and Curiñanco. The following year Marcela and Romilio Sandoval launched Niebla's first Feria Costumbrista y Gastronómica, which the new access made reachable for many visitors.

The bridge's opening in 1987 allowed the first Feria Costumbrista y Gastronómica de Niebla, held the following year and organised by Marcela and Romilio Sandoval. Easy access brought many visitors and established the fair as a recurring local event on the coast. The bridge is also a landmark residents use to orient themselves.

The bridge carries an 8-metre two-way roadway flanked by two 1.20-metre walkways, so pedestrians cross beside traffic. It links Isla Teja with Torobayo and the T-350 route, and with the Pedro de Valdivia bridge it forms the road to Niebla. The deck rests on 13 spans of 35 metres.

The bridge uses a mixed construction of reinforced concrete and steel to span large distances across the river. This structural design was an innovative solution for river crossings in southern Chile at the time it was built.