Tuesday marks 16 years since collapse of I-35W Bridge

16 years since I-35W bridge collapse

16 years since I-35W bridge collapse

More than a dozen people died 16 years ago when the Interstate 35W bridge collapsed during the evening rush hour in Minneapolis.

Tuesday marks the anniversary of the Aug. 1, 2007, collapse that left 13 people dead and another 145 people injured. A new bridge opened more than a year later on Sept. 18, 2008. A memorial was also created near where the bridge previously stood.

As previously reported by 5 EYEWITNESS NEWS last October, steel from the collapsed bridge is at the engineering building at the University of St. Thomas to serve as a reminder that engineers can have people’s lives in their hands. The building housing the university’s engineering school is scheduled to open next spring.

The National Transportation Safety Board blamed the bridge’s collapse on gusset plates that were half as thick as they should have been due to a flaw in the original design. The main piece of steel responsible for the entire collapse is owned and stored by the Minnesota Historical Society.

RELATED: Victims honored, survivors’ stories told on 15th anniversary of 35W Bridge collapse


Click each month via the dropdown below to see the timeline of events.

Aug. 1, 2007

At 6:05 p.m., the Interstate 35W bridge spanning the Mississippi River in Minneapolis collapses.

Aug. 2, 2007

An order for a review of bridge inspection processes is issued from Governor Tim Pawlenty’s office. The order also includes an emergency inspection of other, similar bridges.

In the days following the collapse, Pawlenty warns against a rush to judgment about the cause of the Interstate 35W bridge collapse, after a misprioritization of earmarks is proposed.

Aug. 6, 2007

FBI and U.S. Navy divers assist at the scene with special equipment to help in the recovery process.

Aug. 20, 2007

The Minnesota Department of Transportation begins demolition of the bridge’s remains, after the recovery process is complete.

Dive teams recover the final victim from the Mississippi River. Greg Jolstad of Mora was a construction worker on the bridge when it collapsed.

Aug. 23, 2007

Preliminary plans for a bridge replacement are made public.

Through September and into October, research and negotiations begin for building a new bridge.

Colorado contractor Flatiron/Manson is selected by MnDOT for the new bridge.

Meanwhile, the Minnesota Court of Appeals rejects a challenge to the state's decision to award the contract to Flatiron/Manson.

Dec. 19, 2007

The state legislature hires special counsel to investigate the 35W bridge collapse.

Dec. 21, 2007

Responding to the order released a day after the collapse, MnDOT crews complete special inspections of roughly 4,000 bridges throughout the state.

Jan. 15, 2008

The National Transportation Safety Board states the bridge collapsed because gusset plates were half as thick as they should have been, due to a flaw in the original design from the 1960s. Board members also criticized Minnesota officials for allowing 287 tons of construction materials to be stockpiled on the bridge’s center on the day of the collapse.

April 8, 2008

Construction of the new bridge reaches the halfway mark.

"I can't say I anticipated this type of progress at this time," project manager Jon Chiglo said.

The Interstate 35W bridge is substantially complete, putting the Flatiron Manson construction team in line for a $25 million bonus.

May 2, 2008

A $38 million deal is reached for bridge collapse victims and Gov. Tim Pawlenty says in a prepared statement that he looks forward to signing the legislation into law.

"It provides needed relief and support for victims and family members directly impacted by the I-35W bridge tragedy," Pawlenty said.

Sept. 18, 2008

The new I-35W bridge opens to traffic, completed even earlier than expected.

April 17, 2009

A panel of lawyers administer a nearly $37 million victim compensation fund created by the state legislature for the victims of the collapse.

July 2, 2009

The new Interstate 35W bridge is named one of the Public Works Projects of the year due to its accelerated construction and the methods used to build it. The American Public Works Association names the bridge to receive its award in the category of Disaster or Emergency Construction and Repair.

July 2009

At the end of July, the state sues URS Corp., the engineering firm that was hired to inspect the 1960s-era bridge and suggest ways to shore it up before it collapsed, claiming the firm “violated the applicable engineering standard of care” and failed to warn the state “of the substantially compromised and urgent hazardous condition of the bridge.”

Nov. 6, 2009

Paving company Progressive Contractors Inc., which was hired to resurface the old 35W bridge, settles with collapse victims, their families and the state of Minnesota.

March 19, 2010

URS Corp. and the state of Minnesota settle the lawsuit filed in July 2009 over the 2007 collapse.

August 23, 2010

Attorneys representing the victims of the 35W bridge collapse announce a $52 million settlement is reached in the lawsuit against URS Corporation. It resolves the last remaining piece of litigation brought forward by victims.

Sept. 9, 2010

Minneapolis Mayor R.T. Rybak and survivors of the bridge collapse gather to show off renderings for the site of a memorial for the 35W bridge collapse. It is the second design and note the second site for a memorial.

Aug. 2, 2011

The "35W Bridge Remembrance Garden" near Gold Medal park in Minneapolis is dedicated to those affected by the bridge collapse.