Trinity Railway Express

LTRA was part of the Design Build team working in collaboration with Dallas Area Rapid Transit (DART) to design the last section of the Orange line from Belt Line Rd to Terminal A Station, inside DFW International Airport. LTRA was responsible for the design of the Civil, Demolition, Drainage, and Utility Relocations for segment 3. Project scope included the design and reconstruction of a four-lane major arterial, North Airfield Drive, from west of Freeport Parkway to Grapevine Creek. LTRA developed paving and drainage designs, which included roadway geometrics, cross sections, and storm drain design. LTRA was also responsible for SUE on Sections 1 and 2 of the Orange Line through Irving, generating Level B SUE for water, wastewater, telephone, fiber optic cable, gas, pipelines, traffic signal, and electric utilities. LTRA worked closely with 19 different utility companies, municipalities and DART to develop a Utility Conflict Matrix that was eventually reduced to only 134 conflicts with the new location rail line through proactive coordination. LTRA supported the successful delivery of this significant regional transit project that has increased ridership on DART and spurred significant transit-oriented development around the new stations.

LTRA was part of the design-build team responsible for providing supplemental surveying services, utility design, SUE, and civil design for the 26-mile commuter rail project from DFW Airport to Plano. LTRA was responsible for the civil and drainage design of 11 miles of Segment 3 of the project from the Dallas North Tollway in Dallas to Shiloh Road in Plano. Project scope included civil design packages at 28 rail crossing locations in the Cities of Dallas, Richardson and Plano. Responsibilities also included laying out track panels and coordinating with system elements for gate locations and sidewalk escape paths. Drainage design included preparing hydrology and hydraulics for the 11-mile corridor and preparing Hydraulic Technical Memos for 5 FEMA Zone AE stream crossings. LTRA also developed relocation and accommodation plans for 43 water lines and 22 wastewater lines spanning seven cities, Municipal Utility Districts (MUDs), and Special Utility Districts (SUDs). LTRA coordinated closely with each city and utility owner to ensure compliance with specific design criteria and adjusted designs as needed based on their feedback. LTRA supported the successful delivery of this significant regional transit project.