SYLMAR (CNS) – The coroner’s office today identified a 61-year-old man who was killed when the work truck he was driving crashed on the Golden State (5) Freeway in Sylmar.

The driver of the 2002 Chevrolet 3500HD work truck — identified by the coroner’s office as Claude Guay — died at the scene of the crash that happened about 12:55 p.m. Thursday on the northbound side of the freeway just north of Roxford Street, according to the California Highway Patrol.

A Facebook account bearing Guay’s name indicates he was an AT&T splicing technician, a resident of Los Angeles, an Alhambra High School graduate and a divorced father of three children.

According to the CHP, Guay was driving in the third lane from the left when, for unknown reasons, the vehicle veered to the right, across two lanes and onto the right shoulder, where it struck a curb, continued onto the dirt embankment and rolled over several times.

When the truck came to rest, it was facing southeast and blocking the two right lanes.

Three lanes were shut down and a SigAlert was issued about 1:10 p.m.

All lanes were reopened and the alert cancelled about 3 p.m., according to the CHP, which reported that neither alcohol or drugs were suspected to have played a role in the crash.

Guay, who lived in Sunland, was wearing a safety restraint, according to the CHP.

An initial report indicated that the crash involved a big rig, but a subsequent news release made no reference to a second vehicle.