1.1 This specification covers single-cell precast reinforced concrete box sections cast monolithically and intended to be used for the construction of culverts and for the conveyance of storm water industrial wastes and sewage.1.2 This specifica This specification covers single-cell precast reinforced concrete monolithic box sections for use in the construction of culverts, storm drains, and sewers. The products manufactured in accordance with this specification are designated into two types a