AASHTO GSSB : 1989 INTERIM 2002
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
14-09-2014
12-01-2013
Provides for the first time consistent design criteria for the preparation of plans and specifications for sound barriers, a relatively new area of design intended to alleviate the impact of highway noise upon surrounding communities.
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