Adona, a San Jose resident, was struck around 9 p.m. Tuesday by a 1997 Toyota Camry as she was attempting to cross East Capitol Expressway just south of Cunningham Avenue, according to police.
She was pronounced dead at the scene.
The driver of the Camry, a 19-year-old woman, cooperated with officers and showed no initial signs of intoxication.
The cause of the collision remains under investigation.
Police are asking anyone with information about the collision to call Detective Nqui Scherry at (408) 277-4654. Those who wish to remain anonymous may call the Silicon Valley Crime Stoppers at (408) 947-STOP (7867) or visit www.svcrimestoppers.org.