I-35W Mississippi River Bridge - Document Questions

What was the official name of the bridge that collapsed in 2007?

• Mississippi Arch Bridge

• Minneapolis River Bridge

• Saint Anthony Falls Bridge

• Bridge 9340

In which year did the I-35W Mississippi River bridge open?

• 1964

• 1967

• 1973

• 1970

What was the primary cause of the bridge collapse according to the NTSB?

• Design flaw in gusset plates

• Overloading by vehicles

• Earthquake

• Corrosion of steel supports

How many lanes did the I-35W Mississippi River bridge carry?

• 6 lanes

• 8 lanes

• 12 lanes

• 10 lanes

What was the daily traffic volume on the bridge before it collapsed?

• 120,000 vehicles

• 140,000 vehicles

• 160,000 vehicles

• 100,000 vehicles

Which organization was responsible for maintaining the bridge?

• Federal Highway Administration

• Minnesota Department of Transportation

• National Transportation Safety Board

• City of Minneapolis

What was the length of the longest span of the bridge?

• 456 ft

• 500 ft

• 700 ft

• 600 ft

What was the main design type of the I-35W Mississippi River bridge?

• Arch bridge

• Continuous truss bridge

• Cable-stayed bridge

• Suspension bridge

How many people were killed in the bridge collapse?

• 10

• 18

• 13

• 15

What was the main contributing factor to the bridge collapse besides the design flaw?

• Earthquake

• High winds

• Additional weight on the bridge

• Heavy rainfall