A Semi-tractor tanker accident occurred Thursday morning, in Montgomery County. The Sheriff’s Department says a 2016 Peterbilt semi-tractor pulling a liquid cargo tank trailer owned by Sudbeck Trucking, in Sheldon, was traveling on 110th Street just before 8-a.m. Thursday, when the driver fell asleep at the wheel. The semi entered the south ditch about three-quarters of a mile west of O Avenue, and crashed through a pasture fence. The driver, 58-year old Keith Faber, of Boyden, was not injured. Damage to the semi amounted to $4,500, while the fence sustained $600 damage. No citations were issued.