The Office of the Cumberland County Clerk is located on the first floor of the Cumberland County Court House, 60 West Broad Street, Bridgeton, New Jersey. You must enter from the back of the building.
The Penny Test. In the United States, tire tread depth is measured in 32nds of an inch. New tires typically come with 10/32â or 11/32â tread depths, and some truck, SUV and winter tires may have deeper tread depths than other models. The U.S. Department of Transportation recommends replacing tires when they reach 2/32â, and many states legally require tires to be replaced at this depth.
Based on their warranties, the tires should travel roughly 25,000 to 40,000 miles before their tread reaches the halfway point. To simulate wear without the wait, we used a special tire lathe to shave approximately half the tread depth from three sets of tires, one set for each model.