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FHWA Home / Safety / Roadway Departure / Status of AASHTO MASH Implementation

Status of AASHTO MASH Implementation - Long Description

The graphs below represent the status of State policies or processes to require that only roadside safety hardware evaluated using AASHTO MASH be used for new or full replacement projects as of the indicated date:

First pie graph showing Number of states with policy/process for w-beam barriers and cast-in-place concrete barriers by December 31, 2017; 29: In place, 20: Expected by date, 3: Expected by a later date

Second pie graph showing Number of states with policy/process for w-beam terminals by June 30, 2018; 24: In place, 28: Expected by date, 0: Expected by a later date

Third pie graph showing Number of states with policy/process for cable barriers, cable terminals, and crash cushions by December 31, 2018; 9: In place, 40: Expected by date, 3: Expected by a later date

Fourth pie graph showing Number of states with policy/process for bridge rails, transitions, all other longitudinal barriers, all other terminals, sign supports and all other breakaway hardware by December 31, 2019; 6: In place, 39: Expected by date, 7: Expected by a later date

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Page last modified on November 21, 2017
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Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000