Design Guidelines for Test Level 3 through Test Level 5 Roadside Barrier Systems Placed on Mechanically Stabilized Earth Retaining Walls
A major use of Mechanically Stabilized Earth (MSE) walls is as bridge approach
embankments, where they are typically constructed with a roadside barrier system supported on
the edge of the walls.
The TRB National Cooperative Highway Research Program's
NCHRP Web-Only Document 326:
Design Guidelines for Test Level 3 through Test Level 5 Roadside Barrier Systems Placed on
Mechanically Stabilized Earth Retaining Walls
is dedicated to developing guidelines for barrier-moment slab systems placed
over MSE walls to resist vehicular impact loads resulting from three test levels.
Supplementary to the document is a
presentation. Also, in June 2022, an
erratum was posted for this publication: Table 9-4, p. 251, contained incorrect information in the Second Layer column. The table has been corrected in the Web-Only Document.
This Summary Last Modified On: 6/14/2022