Adam Spencer, The Triplicate

An 18-wheeler truck headed northeast toward Oregon spilled more than 30 gallons of diesel last week after colliding with a bridge on U.S. Highway 199 roughly six miles east of Gasquet.

On March 13, the truck driver, Andrew Pipitone of Medford, allowed the right side of his truck to collide with the guard rail on the east side of the Howard Griffin Memorial Bridge, popping a tire and causing the truck to lose control and careen into trees on the south side of the highway, according to the California Highway Patrol.

One of the trees punctured a fuel tank discharging 30andndash;40 gallons of diesel fuel, according to CHP Sgt. Rick Thoma.

Hazardous material clean-up contractors collected and hauled off 15andndash;25 cubic yards of diesel-contaminated soil and rock on Tuesday, according to Six Rivers National Forest. The material was more than a 100 feet from the adjacent Middle Fork Smith River.

"I am relieved that there were no fatalities or major injuries and no river spill," said Mike McCain, Six Rivers biologist at Gasquet Ranger District.

Th truck was owned by Core-Mark International out of San Francisco.