A northbound big rig collided with a black Mazda RX7 on Highway 99 and Lathrop Road about 5:30 p.m. Friday in commute traffic closing the right hand freeway lane and coming to rest on the eastside Frontage Road, according to a CHP report.

A tractor with one trailer was reportedly loaded with some 33,000 pounds of grocery products with the driver sustaining undetermined injuries in the crash.  Two women from the second vehicle were reported to have minor injuries and were found walking on the freeway near Northland Road by firefighters.

Manteca Police units had been requested to aid in shutting down the Frontage Road at Lathrop Road.

Caltrans staffers were called out to set up warning signs to alert traffic to the collision and to the resulting backup of traffic on the freeway.  They were also called to repair the freeway fencing that had been damaged. 

Two of the injured were transported to a hospital by ambulance some 30 minutes after the crash.  The northbound Frontage Road near the onramp to Highway 99 from Lathrop Road was closed to traffic.