At the intersection of the Sam Rayburn Tollway frontage road and Custer Road, saturated soil behind the MSE walls was draining excess water onto the roadway. During inclement weather, the ponded water created dangerous conditions for NTTA’s customers. VRX designed and prepared PS&E construction documents for a system of drainage lines in front of the MSE wall to capture the water and prevent it from entering the roadway. Installation of storm drainage system required the specification of a dry-bored, 10-inch steel casing beneath the roadway to avoid disruption of traffic. VRX provided shop drawing review and approval and engineering oversightction.