By Dustin Luca
---- — ANDOVER — A privately owned tractor trailer rolled over on an Interstate-495 off-ramp yesterday morning, triggering traffic headaches and a large-scale response throughout the area.
The trailer, trucking a load of aluminum materials, rolled over going from Interstate 495 south to Route 93, exit 40 in Andover at 11:28 a.m. yesterday, according to State Police Lt. Daniel Richard.
The cause of the crash remained unknown yesterday afternoon and is the subject of an ongoing state police investigation headed up by the Andover State Police barracks, Richard said.
But in the moments following the spill, it was all hands on deck as traffic backed up for miles — even into Lawrence.
“We had units from the State Police in Andover, Andover Fire and EMS, Mass Highway, State Police Commercial Vehicle Enforcement Section. ... They all responded to the scene,” Richard said.
As an eye in the skies, the State Police air-wing also responded to monitor traffic, according to Richard.
The highway’s southbound lanes and two affected interchange ramps — both directions of Interstate 93 feeding onto Interstate 495 south — were closed until nearly an hour later, 12:23 p.m., when one of the on-ramps reopened, according to Richard.
The left and center lanes of Interstate 495 southbound also reopened at that time, Richard said. All lanes and both ramps were finally flowing at 1:40 p.m., though the breakdown lane remained closed due to the crash.
The truck in question was driven by 71-year-old Kenneth Rishel, president and owner of KLR Transport Inc., based out of Dover, Penn., according to Richard.
Injuries were unknown last night, Richard said, though no other vehicles or people were involved.