McLaren Engineering Group was retained by the Magnolia Marine Transport Company to evaluate the structural condition and assess the damage of the collapsed I-40 bridge in Webbers Falls, OK. The 2,000-foot suspension bridge, which spans the McClellan-Kerr Arkansas River, had a 500-foot portion collapse on May 26, 2002, as a barge traveling upstream collided with one its piers. The incident resulted in more than a dozen fatalities.
McLaren mobilized within days of the accident, sending several teams of engineers to perform underwater and topside inspections, and collect data for use in evaluating the accident as part of a forensic investigation. McLaren was responsible for the investigation of the bridge failure, including oversight of procedures, preparation of documents summarizing the events and assessing the cause of the collapse. A sophisticated non-linear pushover analysis was performed using several software packages to model and reconstruct the accident.