What was the cause of the I 35 bridge collapse?

The National Transportation Safety Board ultimately determined that the probable cause of the collapse of the I-35W bridge “was the inadequate load capacity, due to a design error . . . of the gusset plates at the U10 nodes, which failed under a combination of (1) substantial increases in the weight of the bridge.

How much weight was added to the bridge due to the 1977 modification?

In 1977, the State increased the bridge deck thickness about two inches. This renovation increased the dead load (weight of the structure itself) by 13.4%.

Where is the bridge collapse?

Within a few days of the collapse, the Minnesota Department of Transportation (Mn/DOT) planned its replacement with the I-35W Saint Anthony Falls Bridge….

I-35W Mississippi River bridge
Locale	Minneapolis, Minnesota, U.S.
Official name	Bridge 9340
Maintained by	Minnesota Department of Transportation (Mn/DOT)

Where did the 35W bridge collapse?

Minneapolis
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. Our hearts continue to go out to the victims, families and others affected by the collapse.

How many people died in I 35 collapse?

Thirteen people died
Ten years ago today, the unthinkable happened in Minneapolis when an interstate bridge collapsed just at the end of rush hour. Thirteen people died, and many more were injured. Minnesota Public Radio’s Solvejg Wastvedt talked with survivors and witnesses who still hold on to vivid memories of that disaster.

Is the Morandi Bridge being rebuilt?

The Genoa San Giorgio Bridge was built in just 15 months and will replace the Morandi Bridge, which was one of the city’s main arteries before it collapsed in heavy rain in August 2018. The new bridge will be inaugurated at 6:30 p.m. local time (12:30 p.m. ET) with a ceremony and tribute to the victims.