BRIDGE 9340 COLLAPSE PDF

August 1, Shortly after 6 pm, the IW Bridge collapses with motor that resulted in undersized gusset plates on some of Bridge ‘s main trusses. tural members could result in the collapse of the whole bridge. In the Bridge , IW Over Mississippi River, Fatigue Evaluation and. After the bridge’s collapse, the subsequent investigation that was conducted by the National . (IW over the Mississippi River).

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Anthony Falls Bridge to Traffic at 5 a. Ininstallation artist Todd Boss prepared a memorial to the bridge collapse in collaboration with Swedish artist Maja Spasova. America’s Failing Infrastructure and the Way Forward. M6 E36 The End of the Road: The Federal Highway Administration FHWA also investigated the incident, creating a computer-generated model of the bridge and contributing that tool as part of the investigative process.

At the time of the collapse, four of the eight lanes were closed for resurfacing, [50] [51] [52] [53] and there werepounds tonnes of construction supplies and equipment on the bridge.

Root Cause Analysis of the I-35 Bridge Collapse

Why was the load capacity of the gusset plate insufficient? Archived from the original on August 29, Add Specific Training on Gusset Plate Inspections The process of designing, building and inspecting the bridge had plenty of assumptions. The Twins postponed their August 2 game bridve well as the traditional groundbreaking ceremonies for Target Field also located in downtown Minneapolis.

Retrieved August 17, The three main spans were of deck truss construction while all but two of the eleven approach spans were steel multi-girder construction, the two exceptions being concrete slab construction. Why were the lanes closed? Archived from the original on November 13, Retrieved September 14, No legislative action was needed for this step. Archived from the original on August 10, When a Bridge FallsRetro Report [21].

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These key fundamental differences help us better assess solutions once we complete our Cause Map. Congressional Research Service, Although the Board’s investigation is still on-going and no determination of probable cause has been reached, interim findings in the investigation have revealed a safety issue that warrants attention Thirty-five people lost their jobs when Aggregate Industries of LeicestershireUK, a company that delivered construction materials by barge, cut production in brirge area.

List of bascule bridges List of bridges List of bridge—tunnels List of cantilever bridges List of medieval stone bridges in Germany List of multi-level bridges List of road—rail bridges List of toll bridges. Archived from the original on July 3, Retrieved August 27, The incident took place bgidge at Bridge in Minneapolis, Minnesota, which crossed the Mississippi River. N38 Nunnally, Patrick. We can take this a step farther, too.

However, the project was canceled in January in favor of periodic safety inspections, after engineers realized that drilling for the retrofitting would, in fact, weaken the bridge. Recovery teams had to balance the need for haste in saving any potential survivors with possible danger recovery team members might face.

Retrieved August 2, Several vehicles caught fire, including a semi-trailer truckfrom which the driver’s body was later recovered.

IW Mississippi River bridge – Wikipedia

This page was last edited on 26 Decemberat Science Museum of Minnesota. Why was there an increased load on the gusset plate? That load was estimated atpounds tonnesconsisting of sand, water and vehicles.

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From Wikipedia, the free encyclopedia. Gray Plant Moody, The Board, with assistance from the FHWA, conducted a thorough review of the design of the bridge, with an emphasis on the design of the gusset plates. Archived from the original PDF on December 22, United States Coast Guard.

More importantly, it was the only one of the three that 93340 fatal. Jeremy Hernandez, a year-old staff member on the bus, assisted many of the children by kicking out the rear emergency exit and escorting or carrying them to safety.

Init was determined that there was an impact to the material and labor cost goal due to decreased life of the bridge. University of Minnesota Twin CitiesMinneapolis: Archived from the original on May 26, Archived from the original on August 19, NTSB chairman Mark Rosenkeralong with a number of investigators, arrived on scene 9 hours after brdige collapse.

H37 Highway Spending: So we add a question coplapse to that part of the description at the top of our Cause Map.

Minneapolis Interstate 35W Bridge Collapse – Minnesota Issues Resources Guides

A decade later, experts say there have been some improvements, but there are still tens of thousands of bridges nationwide that need to be fixed or replaced. Bush to declare the city of Minneapolis and Hennepin County a major briddge area.

Crossings of the Mississippi River.