Winter may still be a month away according to the calendar, but the Allen County Highway Department is already making its plans for the upcoming season.
Employees used a two-week span during the last week of October and the first week of November to prepare all of their trucks and check other equipment such as spreaders and plows.
The Highway Department uses several types of vehicles for snow and ice control – five graders, 27 tandem axle dump trucks, seven single axle dump trucks, and four one-ton small dump trucks. ACHD also uses ten heavy duty pick-up trucks to help clear road intersections and smaller areas.
Allen County is divided into north and south districts with 12 zones in each district. Each zone will have at least one truck, and some will have two or more trucks. Graders are assigned to gravel roads, areas with large drifts of snow, and clearing berms of snow build-ups.
The anti-icing materials used are sand, salt, calcium chloride and stone chips. A sand-salt mixture will be used on most roads. Calcium chloride mixed with sand and salt will be used on roads that need to be cleaned to bare pavement. Stone chips will be used on gravel roads when they become slippery.
On higher traffic count highways, liquid calcium chloride will be applied along with a salt-sand mixture or pure salt. 36 trucks are outfitted with systems that dispense the liquid onto the salt and sand. The calcium chloride solution speeds the chemical reaction of the salt, which in turn melts snow and ice much quicker.
Snow removal will begin when the roadways are determined to be too slippery or a significant amount of accumulation is covering the road surface. The Allen County Sheriff's Department will also contact the Highway Department when the roads are in need of clearing or treatment.
Allen County will use the statewide travel advisory system to warn motorists about hazardous conditions on county highways. Travel advisories fall into one of three categories: