AASHTO M 207M/M 207-10
1. SCOPE
1.1. This specification covers reinforced elliptically shaped concrete pipe to be used for theconveyance of sewage, industrial wastes, and storm water, and for the construction of culverts.
1.2. Pipe designed for placement with the major axis horizontal shall be designated as HorizontalElliptical Pipe. Pipe designed for placement with the major axis vertical shall be designated asVertical Elliptical Pipe.
1.3. This specification is applicable for orders in either SI units (M 207M) or in inch-pound units(M 207). SI units and inch-pound units are not necessarily equivalent. Inch-pound units are shownin brackets in the text for clarity, but they are the applicable values when the material is ordered toM 207.
Note 1--This specification is a manufacturing and purchase specification only, and does notinclude requirements for bedding, backfill, or the relationship between field load condition andthe strength classification of pipe. However, experience has shown that the successful performanceof this product depends upon the proper selection of the class of pipe, type of bedding andbackfill, and care that the installation conforms to the construction specifications. The owner ofthe reinforced concrete pipe specified herein is cautioned that he must correlate the fieldrequirements with the class of pipe specified and provide inspection at the construction site.