Generated with sparks and insights from 5 sources








  • AASHTO M304 is a standard specification for Poly(Vinyl Chloride) (PVC) profile wall drain pipe and fittings based on controlled inside diameter.

  • The specification covers both perforated and nonperforated pipes and fittings, with nominal inside diameters ranging from 100 to 1200 mm (4 to 48 inches).

  • These pipes are used in nonpressure storm drains, culverts, underdrains, and other subsurface drainage systems providing either soiltight or watertight joints.

  • The latest version of AASHTO M304 is M 304-11 (2023).

  • The pipes and fittings should be installed in accordance with ASTM D2321 and the manufacturer's recommendations.

Pipe Specifications [1]

  • Nominal Pipe Sizes: Ranges from 4 to 48 inches in diameter.

  • Material: Made from Poly(Vinyl Chloride) (PVC).

  • Wall Type: Profile wall, which can be either perforated or nonperforated.

  • Standards: Conforms to ASTM D1784 Cells Class 12454, ASTM F477, ASTM D3212, and ASTM D2412.

  • Pipe Length: Typically 14 feet laying length.

Installation Guidelines [2]

  • Installation Standard: Should be installed in accordance with ASTM D2321.

  • Manufacturer's Recommendations: Follow the specific guidelines provided by the pipe manufacturer.

  • Joint Types: Provides either soiltight or watertight joints.

  • Approval: Industrial waste disposal lines require specific approval from the governing code authority.

  • Temperature Limit: Not suitable for temperatures exceeding 60°C (140°F).

Applications [2]

  • Storm Drains: Used in nonpressure storm drain systems.

  • Culverts: Suitable for culvert installations.

  • Underdrains: Effective in underdrain systems.

  • Subsurface Drainage: Used in various subsurface drainage systems.

  • Industrial Waste: Can be used for industrial waste disposal with specific approval.

Comparison with ASTM Standards [1]

  • ASTM Standards: AASHTO M304 conforms to several ASTM standards including ASTM D1784, ASTM F477, ASTM D3212, and ASTM D2412.

  • Focus: ASTM standards cover a broader range of materials and applications, while AASHTO focuses on transportation and infrastructure.

  • Overlap: Both standards are used in the construction and testing of PVC pipes.

  • Specificity: AASHTO M304 is specific to profile wall PVC pipes for drainage applications.

  • Testing: Pipes are tested according to ASTM standards to ensure compliance.


Latest Version [2]

  • Current Version: AASHTO M 304-11 (2023).

  • Release Date: The latest version was released in 2023.

  • Availability: Can be purchased for $78.00.

  • Updates: Includes updates and revisions from previous versions.

  • Access: Available for immediate download from various online stores.