Noise barrier walls are becoming increasingly necessary as traffic rates increase and residential development encroaches on busy highways. The design generally includes a drilled shaft foundation to support the wall’s beams and panels. Our team of structural and geotechnical engineers is well suited to design these systems. Often, McMahon & Mann develops a design for the contractor, which is then approved after close scrutiny by the various state transportation departments. As described in the following project descriptions, McMahon & Mann has been successful in preparing noise barrier wall designs in New York and Pennsylvania.