Warrant: Driver fell asleep before hitting DOT workers on I-440

Angela Renee Roland, 44, has been charged with two counts of felony serious injury by vehicle, driving while impaired and violations of the state's "move over" law in the April 19 crash.

State Department of Transportation workers Darrick Bridges, 44, and Kelly Lewis, 44, were on the shoulder of I-440 at the Capital Boulevard exit when Roland's car slammed into the back of their truck, which had its yellow lights flashing, authorities said.

Bridges was pinned between the two vehicles and had to have both legs amputated, authorities said, while Lewis was thrown over a guardrail.

In applying for a warrant to search Roland's phone to determine if she was texting while driving, an investigator with the Raleigh Police Department wrote that evidence at the scene "suggests that Ms. Roland never applied to the brakes or performed any maneuver in an attempt to stop or avoid the collision."

Roland told police that she fell asleep at the wheel before the crash, according to the warrant application, and a previous search of her car's on-board computer showed no deceleration in the five seconds before the crash.

Police also noted in the application that Roland told them she had drunk four or five beers earlier that day, with the last one less than eight hours before the crash, and that she had taken anti-depressant and anti-tremor medications less than 12 hours before the crash.