introduction TABLE OF CONTENTS concrete pipe Introduction................................................................................................. Box Section Standard Sizes............................................................................ Lafarge Big Box Sections................................................................................. Box Section Specifications............................................................................... Manufacturing Process................................................................................... Design Software.............................................................................................. Determination of Loads................................................................................. Underground Stormwater Storage................................................................... Bends................................................................................................. Manhole Access Openings............................................................................ End Sections.................................................................................................. Box Section Joints and Sealants...................................................................... Box Culvert Installation and Handling............................................................... 2 3 4 5 6 7 7 8 10 10 11 12 14 stormwater treatment technologies box sections manhole and catch basin material