Koppers is an industrial processing plant on 100 acres of land located adjacent to the Roanoke River in Salem, Virginia. They primarily focus on treating railroad ties and utility poles with products to increase their durability. Due to new regulations, they needed to expand their facility and Parker Design Group was contacted. During preliminary site investigation, it was discovered that they had significantly soft soils. In order to provide the stability needed for these large stacks of ties and poles, the design incorporated a layer of geogrid across the site topped with compacted stone.

Parker Design Group provided site planning, construction site and topographic surveying, and stormwater master planning to ensure the site was in compliance with stormwater regulations for current projects and future growth.