The mother of a 25-year-old Sorrento woman killed in a February head-on crash on La. 931 has filed a wrongful death suit against the state highway department over the safety of the two-lane highway in Ascension Parish.

Rhonda Sehon claims the Nissan Maxima that her daughter, Ramsey A. O’Gwynn, was driving veered into oncoming traffic Feb. 4 after the passenger-side wheels went off the road and the car over-corrected as O’Gwynn tried to steer it back onto La. 931.

The suit, filed Dec. 4 in the 23rd Judicial District Court in Gonzales, claims the car’s wheels had gone off “an unreasonably hazardous drop-off on the right side of the La. Highway 931.” The highway has drainage ditches alongside it.

The suit claims the state Department of Transportation and Development is negligent in the crash because the agency allowed the hazardous drop-off to remain, did not fix the highway shoulder and did not warn the public about the shoulder.

“It was foreseeable that a motorist such as Ramsey O’Gwynn would inadvertently leave the roadway and fall victim to the severe drop-off on La. Highway 931,” the suit says.

Department spokesman Dustin Annison said this week that he cannot comment on pending litigation.

Sehon filed the wrongful death suit on behalf of O’Gwynn’s now 4-year-old daughter, Sadie Ann O’Gwynn. Sehon and her husband were awarded custody of the child in March, a month after the crash, Ascension civil filings say.

According to Louisiana State Police, Ramsey O’Gwynn crashed head-on into a Chevrolet Blazer driven by Eric Campbell, then 30, of Gonzales.

Campbell and a then-3-year-old in the sport utility vehicle had minor to moderate injuries, state troopers reported at the time.

Campbell, the 3-year-old and O’Gwynn, who was alone in her car, were wearing their seat belts or were otherwise properly restrained, troopers said then.

Jared Sandifer, State Police spokesman, said Thursday that blood tests showed neither driver was intoxicated by drugs or alcohol.

Sehon’s lawsuit does not name Campbell as a defendant. As of Thursday, Campbell has not filed suit in the 23rd Judicial District Court over the crash.

Sehon’s attorneys at the Bohrer Law Firm did not return a message for comment earlier this week.

The suit seeks unspecified damages.

Follow David J. Mitchell on Twitter @NewsieDave.