On Wednesday, the National Transportation Safety Board released more than 800 pages of documents about their investigation into the deadly I-35W pileup.
Here are some key details that have emerged so far from the NTSB investigation.
As we've been going through the report, one section that caught our attention was the 22 pages of paperwork submitted by the North Tarrant Express Mobility Partners, who operate and maintain the segment of I-35W where the crash occurred. In the report, their data indicates as the light freezing rain and mist started to fall, the average speed in one lane before the crash exceeded 100 miles per hour – that was the average.The group says after the multi-vehicle crash, they've increased the fleet of winter maintenance vehicles from three to six dump trucks and 10 pick-ups are now outfitted to spray brine, that substance to help treat roads.Also, salt storage for the roads has increased by over 400 tons.
The NTSB has not released its final report about the crash and the cause. The report didn't indicate when that would happen.
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