1. General Description The 24-inch x 20-foot corrugated plastic culvert pipe shall be a high-density polyethylene (HDPE) or polypropylene (PP) pipe, designed for use in drainage, culverts, and stormwater management systems. The pipe shall feature a dualwall corrugated construction for high strength, flexibility, and hydraulic efficiency. This pipe shall be manufactured to meet or exceed the requirements of relevant industry standards. 2. Material Requirements • Pipe Material: High-Density Polyethylene (HDPE) or Polypropylene (PP). The material shall be virgin (not recycled) plastic, with resistance to UV degradation, chemicals, and environmental stress cracking. • Cell Classification: The material shall comply with ASTM F2648 or equivalent for PP. • Pipe Resin: The pipe shall be made of non-recycled resin, ensuring the pipe's durability and structural integrity in underground applications. • Dual wall pipe with smooth interior 3. Dimensions • Nominal Pipe Size: 24 inches diameter • Length: 20 feet standard length • Inner Diameter (ID): 24 inches • Outer Diameter (OD): Typically 26 inches , depending on wall thickness • Wall Thickness: The wall thickness shall meet or exceed the minimum requirements for the specific pipe class, providing the necessary strength for load-bearing and hydraulic performance. • Corrugation Profile: The pipe shall feature a continuous annular corrugation profile, designed for strength, flexibility, and ease of installation.
