22-R-11 Mass Timber Noise Barrier for Highways Print Page Published April 7, 2022 by Harsh Bothra | Structural Engineer, PermaTrakContent is restricted to FRA members only.Sign InIs Your Company A Member?Get Access Now! First Name Last Name Company Your email Author Harsh Bothra | Structural Engineer, PermaTrak, Charlotte, NC, [email protected] Reviewed by Clay Altizer | FRA Southwide Region Manager, [email protected]