ASTM A964/A964M-17 PDF Download

The ASTM A964/A964M-17 standard specifies the requirements for the material, geometry, and wall section properties of steel box culverts made from corrugated plate or sheet. These box culverts can be manufactured with or without attached stiffeners and are designed for field assembly. The standard also includes information about the appropriate fasteners and optional materials such as steel invert plates and headwalls that can be used.

Steel box culverts are widely used for various applications, including conduits for gravity flow drainage of surface water, such as culverts and storm drains. They are also used for small bridges and grade separation structures like pedestrian or vehicular underpasses and utility tunnels.

It is important to note that this standard does not cover requirements for foundations, backfill, or the relationship between earth cover or live loads and strength requirements. These aspects are described in other standards such as the AASHTO LRFD Bridge Design Specifications.

Additionally, the ASTM A964/A964M-17 standard does not include requirements for the hydraulic design of these structures. Hydraulic design considerations, placement of footings or inverts, and end treatments to resist scour are discussed in FHWA HDS No. 5.

The standard classifies steel box culverts into five types: Type I, II, III, IV, and V. The design properties for the crown and haunch segments of the box culvert are determined and must conform to the specified geometric dimensional limits.

The corrugated plate material used for the shells of Type I, II, III, and IV box culverts must be fabricated from steel sheet or plate that meets the chemical, mechanical, thickness, shape, and coating requirements. Sampling and testing of the corrugated plate material are required to ensure it meets the necessary chemical composition, mechanical properties, and coating weight standards.

Nominal dimensions, cross-sectional area, and hydraulic design parameters for commonly available box culvert sizes are listed in Appendix X1 of the standard for Type I, II, and IV box culverts. Geometries for Type III and V box culverts can be obtained from manufacturers.

Manufacturers' suggested design properties for the different box culvert types described in the standard, as well as the spacing classes and material thicknesses typically available, are provided in Appendix X2.