Why did the Minneapolis bridge collapse in 2007?

Why did the Minneapolis bridge collapse in 2007?

And the National Transportation Safety Board determined that it was a design flaw, and not deferred maintenance, neglect, or other problems, that caused the 35W bridge to collapse. Gusset plates that hold the bridge’s huge steel beams together were only half as thick as they should have been.

Where was the bridge that collapsed on August 1 2007?

Interstate 35W bridge
Shortly after 6 pm on August 1, 2007, the Interstate 35W bridge over the Mississippi River near downtown Minneapolis was loaded with rush hour traffic creeping through an ongoing construction project. Without warning, the bridge collapsed, taking with it 111 vehicles. Thirteen people died and 145 were injured.

What year did the I 35 bridge collapse in Minneapolis?

1964
I-35W Mississippi River bridge/Construction started

What bridge collapsed in Minnesota?

I-35W bridge
On Aug. 1, 2007, Minnesota suffered a tragedy of historic proportions when the I-35W bridge (bridge 9340) over the Mississippi River in Minneapolis collapsed.

What caused the silver bridge to collapse?

The bridge failure was due to a defect in a single link, eye-bar 330, on the north of the Ohio subsidiary chain, the first link below the top of the Ohio tower. A small crack was formed through fretting wear at the bearing, and grew through internal corrosion, a problem known as stress corrosion cracking.

What bridge collapsed in Minneapolis?

The Interstate 35W Mississippi River eight-lane bridge in Minneapolis, Minnesota has collapsed on both sides of the highway over the Mississippi River during rush hour. Previous reports indicated at least nine people had died, but Minneapolis police revised this to four during a 7:30 a.m. (local time) press conference.

How did the Minnesota bridge collapse?

The collapsed 35W bridge in Minneapolis seen on August 2, 2007. Ten years ago, the Interstate 35W bridge over the Mississippi River in downtown Minneapolis collapsed, sending cars, trucks and even a school bus that were crawling over it in bumper-to-bumper rush hour traffic plummeting into the river below and onto the rocky shore.

When did the 35W bridge collapse?

Collapse of the previous bridge. During the evening rush hour at 6:05 pm on August 1, 2007, the main spans of the I-35W Mississippi River bridge in Minneapolis collapsed and fell into the river and onto its banks, killing 13 people and injuring 145.

When did the bridge collapse in Minnesota?

I-35W Mississippi River Bridge (2007) Minneapolis, Minnesota, USA. The eight lane, 581 metre bridge collapsed into the Mississippi River killing 13 people and injuring 145. Commonly called the ‘i-35 Minneapolis’ and opened in 1967, the bridge carried over 141,000 vehicles a day, on four northbound and four southbound lanes.