The deadliest bridge collapses in the US in the last 50 years

The wreckage of two catwalks is scattered through the lobby of the Kansas City Hyatt Regency Hotel on July 19, 1981.

(CNN)There have been a number of deadly bridge collapses through the years, some due to structural deficiencies and others in collisions or accidents. Here's a look back at the 10 deadliest incidents in the last half century.

    Hyatt Regency Walkway
    Deaths: 114

    Where: Kansas City, Missouri
    When: July 17, 1981
    The walkways on the second and fourth floor of the Hyatt Regency Hotel collapsed under the weight of guests. They then both crashed onto a crowded dance floor in the lobby. The American Society of Civil Engineers called it "one of the most devastating structural failures in U.S. history in terms of lives lost."

    Big Bayou Canot
    Deaths: 47

    Where: Outside Mobile, Alabama
    When: September 22, 1993
    Part of an Amtrak train fell off a trestle into the bayou and caught fire. It happened right after a barge hit a railroad bridge. Minutes later, the Amtrak Sunset Limited hit the bent tracks and plunged into the bayou.

    Silver Bridge
    Deaths: 46

    Where: Between Point Pleasant, West Virginia and Gallipolis, Ohio
    When: December 15, 1967
    According to eyewitnesses, the entire 1,460-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: 42

    Where: Oakland, California
    When: October 17, 1989
    The Cypress Freeway Viaduct was a double-decker freeway structure that connected Interstate 880 to the Bay Bridge approach. The Loma Prieta Quake caused the upper deck to collapse on to the lower.

    Sunshine Skyway Bridge
    Deaths: 35

    Where: Outside St. Petersburg, Florida