CASE STUDY Wal-Mart chose a difficult north-facing site for a new store on the side of a steep forest/meadow area along SR 443 in Lehigh County, Pennsylvania. The engineering team was tasked with designing the Erosion & Sediment Control Plan that would meet the PA DEP Title 25, Chapter 102 Erosion & Sediment Control and NPDES Storm Water Discharge Rules and Regulations. The project involved cutting into a steep slope and moving 550,000 cubic yards of soil to create the new store pad, parking area, and access driveway. SITUATION Wal-Mart Construction Project LehighCounty,PA The cut and fill operation resulted in terraced 2:1 (H: V) slopes above the store pad and similar slopes below the site. The steepness of the slopes required the installation of erosion control blankets to stabilize the newly created cuts and fills and to enhance the rapid establishment of vegetation. The engineer chose a single-net accelerated degradable straw blanket for the project. One million square yards of East Coast Erosion Blankets ECS-1D Temporary Single Net Straw Rolled Erosion Control Product with a functional longevity of 45-90 days was installed on the slopes. SOLUTION The blankets were installed in the early to mid-spring and by mid-summer the slopes were fully vegetated and not experiencing any erosion problems. By mid-summer, the photodegradable polypropylene netting was extremely brittle and experiencing degradation, as designed. RESULT NEW CONSTRUCTION PRODUCT PROFILES • ECS1D PRODUCT FEATURES Steep Slope Photo Degradable EastCoastErosionControl · 443BrickerRoad · Bernville,PA19506 · 610.488.8496 · www.EastCoastErosion.com