Upper Darby, PA 19082
Lombard was contracted by Public Storage to replace the asphalt in two drive lanes spanning over 30,000 square
feet at the Upper Darby, Pennsylvania location. The specifications included the following: re-grade to create
a swale to divert surface water to structures and away from thresholds of buildings. Re-pave area with six
inches (6”) compacted stone and three inches (3”) of asphalt in two 1-1/2” lifts. Ensure a two inch (2”) dap
out at the thresholds at every unit door of each building. The asphalt mixture utilized was Type C with a 3/8"to
1/2" retained aggregate grade.