introduCtion Concrete Pipe eManual Design The following sections provide an overview of design considerations associated with concrete pipe. The purpose of this eManual is to provide a concise resource for consultants, engineers, and specifiers in specifying the appropriate concrete pipe design, with the understanding that Lafarge Pipe employs technical staff that are available to provide additional technical information as required. A number of additional resources available to consultants are highlighted below, the links for which can be found at www.lafargenorthamerica.com/pipe. ConCrete pipe Design Manuals The American Concrete Pipe Association (ACPA) and Ontario Concrete Pipe Association (OCPA) have concrete pipe design manuals that can be viewed online at the links below.  Both include useful information for specifying and designing with concrete pipe with the indirect design method - specifying a Class or D-Load of pipe. The American Society of Civil Engineers (ASCE) 15-98 Standard Practice for Direct Design of Buried Precast Concrete Pipe Using Standard Installations.  This is the basis for ‘SIDD’ or ‘Direct Design’ of concrete pipe. Additional Resources Within the concrete pipe industry there are numerous design guides and manuals available through the ACPA, OCPA, and CCPA. These documents provide additional background information, history, formulas, sample calculations, and in-depth design examples. stormwater treatment teChnologies Design Data The American Concrete Pipe Association (ACPA) publishes a number of Design Data documents that provide useful information on live and dead loads, bedding factors, hydraulics, and miscellaneous issues. box seCtions manhole and CatCh basin material LAFARGE PIPE eMANUAL PAGE 25