How many bridges collapsed each year

When : December 15, According to eyewitnesses , the entire 1,foot suspended portion of the Silver Bridge folded "like a deck of cards" in less than 20 seconds and collapsed into the river. Investigators later blamed a fracture in the bridge for the accident. Cypress Street Viaduct Deaths: Where : Oakland, California. When : October 17, The Cypress Freeway Viaduct was a double-decker freeway structure that connected Interstate to the Bay Bridge approach. The Loma Prieta Quake caused the upper deck to collapse on to the lower.

Sunshine Skyway Bridge Deaths: Where : Outside St. Petersburg, Florida. When : May 9, A freighter struck the bridge during a thunderstorm, sending a bus, six cars and a pickup truck into the bay. I Bridge Deaths: Where : Webbers Falls, Oklahoma. When : May 26, A third of the I bridge fell after a towboat pushed a barge into a support. Cline Avenue Deaths: Where : East Chicago, Indiana. When : April 15, Three spans of the elevated Cline Avenue bridge extension highway project gave way, according to UPI.

I W Bridge Deaths: Where : Minneapolis. When : August 1, Support plates that were about half as thick as they should have been were the likely cause of the I W bridge collapse over the Mississippi River, investigators said. A replacement bridge opened in August Petersburg, Florida. A 1,foot-long section of the southbound span fell into the water along with six cars, one pickup truck and a Greyhound bus.

A replacement span opened in During the evening rush-hour on August 1, , the center span of an eight-lane, steel truss arch bridge—one that carried Interstate 35W over the Mississippi River in Minneapolis, Minnesota —suddenly collapsed.

Adjoining sections then crumbled. Commuters in vehicles and 18 construction workers fell as much as feet onto the river and its banks. The accident killed 13 people and resulted in injuries. A replacement span opened in September But if you see something that doesn't look right, click here to contact us! Twice a week we compile our most fascinating features and deliver them straight to you. Live TV. This Day In History. History Vault.