Standard Specification for
Precast Reinforced Concrete Manhole Sections
AASHTO Designation: M 199M/M 199-081
ASTM Designation: C 478M-07 and C478-07
PART I-GENERAL
Grade rings
SCOPE
This specification covers the manufacture and purchase requirements of products used for
the assembly and construction of circular precast reinforced concrete manholes used in sewer and water works.
Part I, Sections 1 through 11, of this specification presents general requirements and requirements that are common to each precast concrete product covered by this specification.
Part II of this specification presents specific requirements for each manhole product in the following sections:
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