CH2M rehabilitating TRE timber trestle

Written by Jenifer Nunez, assistant editor
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Dallas Area Rapid Transit (DART) awarded an engineering services contract to CH2M for the rehabilitation of the timber pile trestle span Trinity Railway Express (TRE) bridge over Inwood Road.

 

CH2M’s responsibilities include presenting repair options for the bridge structure, preparing plans and specifications and developing cost estimates. The scope of work encompasses structural design, geotechnical services, field and design survey, drainage and services during construction.

A critical aspect of the project is maintaining access to Inwood Road, a primary gateway into the Southwestern Medical District that comprises the University of Texas Southwestern St. Paul Hospital, Parkland Hospital, Children’s Medical Center and the Zale Lipshy University Hospital. More than 30,000 employees work in the district and more than 2.2 million patients visit annually. The rail bridge also represents a TRE commuter link between downtown Dallas and downtown Fort Worth, which must remain open for daily commuters traveling to and from the two major employment centers.

“Our extensive experience with commuter rail operations, bridge design, vehicular traffic maintenance, construction techniques and federal requirements will be invaluable to not only designing and constructing a successful project, but carefully maintaining operations while the bridge improvements are constructed,” said Phil Yerby, CH2M’s transportation director for Texas.

The bridge rehabilitation project is part of an overall plan to upgrade the TRE corridor, improving freight capacity in the region, as well as opening the way for more frequent and reliable passenger rail service, increased ridership and reduced congestion.

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