Quickly drained paved parking areas provide safety and consideration for customers and employees alike. Rapid removal of rain through engineered surface inlets and catch basins connected to a well-designed pipe drainage system makes short order of thunderstorms or prolonged rain events. N-12 HDPE corrugated pipe with its superior hydraulics, strength and durability provide the confidence engineers count on when designing these systems. Properly installed, H25 and E80 loads are managed with the minimum required cover. And the best way to prolong the service life of pavement is by keeping the foundation free from water erosion.