Kinzua Bridge

The Kinzua or the Kinzua Viaduct was a railroad trestle that spanned Kinzua Creek in McKean in the U.S. of .

The was 301 feet (92 m) tall and 2,052 feet (625 m) long. Most of its structure collapsed during a tornado in July 2003.

Billed as the “Eighth Wonder of the World”, the wrought iron original 1882 structure held the record for the tallest railroad in the world for two years.

In 1900, the was dismantled and simultaneously rebuilt out of steel to allow it to accommodate heavier trains.

It stayed in commercial service until 1959, when it was sold to the Commonwealth of in 1963 to become the centerpiece of a park.

Restoration of the began in 2002, but before it was finished a tornado struck the in 2003, causing a large portion of the to collapse.

Corroded anchor bolts holding the to its foundations failed, contributing to the collapse.

Before its collapse, the Kinzua was ranked as the fourth-tallest railway in the .

It was listed on the National Register of Historic Places in 1977 and as a National Historic Civil Engineering Landmark by the Society of Civil Engineers in 1982.

The ruins of the Kinzua are in Kinzua Park off U.S. Route 6 near the borough of Mount Jewett, .