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. This specification deals with the standards for single-cell precast reinforced concrete box sections cast monolithically and proposed for use in the construction of culverts and for the conveyance of storm water industrial sewage. The reinforced concre