AASHTO M 273M-17 PDF Download

AASHTO M 273M-17 is a standard specification that pertains to the construction of precast reinforced concrete box sections used for culverts, storm drains, and sewers. It specifically covers box sections with less than 0.6 m of cover that are subjected to highway loadings. The purpose of this standard is to provide guidelines for the proper manufacturing and purchasing of these box sections.

In addition to the manufacturing and purchasing specifications, this standard also includes standard designs, which are provided in Appendix X1. The designs are developed based on specific criteria outlined in the standard. It is important for the owner of the precast reinforced concrete box sections to carefully consider the loading conditions and field requirements and ensure that the installation adheres to the construction specifications. Inspection at the construction site is also necessary to ensure proper performance of the product.

It is worth noting that AASHTO M 259M should be used for box sections with 0.6 m or more earth cover or for box sections subjected to dead load only. For load-and-resistance factor design (LRFD) requirements, ASTM C 1577 should be used in conjunction with this standard.