A homicide charge has been filed against a woman who was involved in a Sept. 15 two-car collision on I-15.

Claudia H. Castleton, 38, was charged with one count of vehicular homicide, a third-degree felony, in connection with the traffic death of Steven W. Harton, 40, of Salt Lake City.Court documents state that Castleton had a blood-alcohol level of .16 - twice the legal limit - when she collided with Harton's vehicle on the freeway near 3900 South. Witnesses said Castleton was driving well over the speed limit when she struck the rear of the Harton's vehicle, causing it to bounce across the median, killing the driver.