AASHTO M306
Full Name
AASHTO M306 – Standard Specification for Drainage, Sewer, Utility, and Related Castings
Scope
This specification is applicable to frames, grates, rings, and covers for inlets, manholes, and other structures for civil engineering use where items may be placed in traffic service and load bearing is a consideration.
Keywords
Covers for inlets; frames; grates; load bearing; manholes; rings; traffic service.