Chile Builds One of South America’s Longest Suspension Bridges

Chile is constructing the Chacao Bridge to permanently connect Chiloé Island to the mainland. The 2.754-meter bridge will replace the current ferry system, offering year-round access for residents, visitors, and goods.

Engineers designed the structure to withstand extreme conditions including earthquakes, near the site of the 1960 Valdivia earthquake, the strongest ever recorded, and winds exceeding 200 kilometers per hour. The bridge features three large concrete towers, including one built on a mid-channel rock formation, and a 23.8-meter-wide steel deck with foundations extending deep below sea level.

A central tower shaped like an “A” is intended to improve structural stability. Authorities anticipate the bridge will streamline travel, boost commerce, promote tourism, and contribute to the economic development of the region. The Chacao Bridge is scheduled to open in 2028.