3278.1SCOPE
Provide corrugated polyethylene (PE) tubing and fittings.
3278.2REQUIREMENTS
Create perforations at manufacture’s plant; no field perforations are allowed. For uses except the 2 inch perforated pipe shown on the Bridge approach panel Standard Plan sheets: Provide corrugated (PE) tubing and fittings meeting the requirements of AASHTO M 252 Standard Specification for Corrugated Polyethylene Drainage Pipe. For the 2 inch perforated pipe shown on the approach panel sill shown on the B ridge approach panel Standard Plan sheets, provide corrugated and slotted drain pipe meeting the requirements listed in Table 3278.2-1.
Table 3278.2-1 Requirements for 2 inch Perforated Pipe for Bridge Approach Panels Requirement Minimum Water Inlet Area 0.50 inches squared/ foot Maximum Slot Width 0.04 inches Minimum Pipe Stiffness at 5 percent Deflection 30 psi ASTM D3550*, Cell Classification 323410C Meeting the requirements of ASTM F667ǁ Inside Diameter 1.95 – 2.05 inches Wall Thickness Minimum 0.023 inches * ASTM D3550, Standard Practice for Thick Wall, Ring-Lined, Split Barrel, Drive Sampling Soils ǁ ASTM F667, Standard Specification for Large Diameter Corrugated Polyethylene Pipe and Fittings
3278.3SAMPLING AND TESTING
Submit to the Engineer a manufacturer’s Certificate of Compliance with each tubing shipment. Metals and Metal Products
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