A Texas man has been nabbed in the slaying of a teen girl who vanished after a Valentine’s Day dance more than 50 years ago, police said.

Glen McCurley, 77, of Fort Worth, was arrested Monday on a capital murder charge in the slaying of 17-year-old Carla Walker, who was abducted in February 1974, authorities said.

Police said the night Walker disappeared, she and her boyfriend went to a Valentine’s Day dance at Western Hills High School, news station DFW-TV reported.

They then ended up in a car outside a bowling alley when a man pistol-whipped the boyfriend and grabbed her, police said.

Her body was discovered three days later in a culvert near Lake Benbrook, which was near the bowling alley parking lot, authorities said.

Detectives questioned McCurley at the time of the crime because he lived nearby, but there was not enough evidence to tie him to the crime, police said.

“We had taken his case as far as they could with current technology and what evidence we had at the time,” Detective Jeff Bennett said at a Tuesday news conference.

When detectives reopened the case, they used DNA technology to link McCurley to the crime by creating a genetic profile from evidence taken from Walker’s bra, police said.

McCurley has been booked at Tarrant County Jail, where he’s being held on $500,000 bond.

Walker’s brother Jim, who was only 12 when she vanished, said the arrest brought some closure to the family.

“The word that came across my brain was ‘finally, finally,’” he told DFW-TV. “This is a resolution that’s been prayed for.”

With Post wires