This specification covers single-cell precast reinforced concrete box sections intended to be used for the construction of culverts and for the conveyance of storm water, industrial wastes, and sewage.
This specification is the metric counterpart of M 259.
This specification is primarily a manufacturing and purchasing specification. However, standard designs are included and the criteria used to develop these designs are given in the Appendices. The successful performance of this product depends upon the proper selection of the box section, bedding, and backfill, and care that the installation conforms to the construction specifications. The owner of the precast reinforced concrete box sections specified herein is cautioned that the loading conditions and field requirements must properly correlate with the box section specified and that inspection at the construction site must be provided.
AASHTO M 273M is to be used for box sections with less than 0.6 m of cover subjected to highway loading.
If load-and-resistance factor design (LRFD) is required, then use ASTM C 1577.
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