KGW photo

Police investigated the crash scene for several hours.

MILWAUKIE, Ore. -- A bicyclist was struck and killed on his birthday, along Highway 99E, just south of Milwaukie late Monday night and the driver who hit him may have been drunk, police said.

Oregon State Police said the crash happened around 9:30 p.m., on Highway 99E, also known as SE McLoughlin Blvd, between Oak Grove Blvd. and SE Silverleaf.

Daniel Kimball Frank, of Milwaukie, was pronounced dead at the scene. He had just turned 26-years old. Police said it appeared that Frank was traveling northbound in the bike lane when he was hit.

Clackamas County Sheriff's Office/kgw.com

Jennifer Ballew as shown in a police mug shot.

The driver of the car, Jennifer Ballew, 32, of Clackamas was not injured. She was later arrested on one count of manslaughter in the second degree and lodged in the Clackamas County Jail. Investigators said they suspect she may have been driving impaired, possibly from combining prescription medications and alcohol.

The road re-opened around 3 a.m. and investigators were on scene until about 3:20 a.m.