MINNEAPOLIS, Minn. --- The National Transportation Safety Board is examining whether a 10-year-old de-icing system played a prominent role in the Interstate 35W bridge collapse that killed 13 people. According to Bloomberg news reports, the safety board's investigators are trying to determine whether the de-icing system, designed to prevent ice buildup on the bridge, used any chemicals with corrosive properties. In addition, the board is continuing to study the effects of a construction project on the bridge and the steel plates used to connect the structure's beams. Construction work was in progress when the bridge collapsed.

Originally posted on Fleet Financials