1.1 This specification covers reinforced concrete pipe intended to be used for the conveyance of sewage, industrial wastes, and storm water, and for the construction of culverts. 1.2 This specification is the SI compani This specification covers reinforced concrete culvert, storm drain, and sewer pipe. The pipe manufactured with this specification shall be of five classes: Class I, Class II, Class III, Class IV, and Class V. The strength requirements for each class ar