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Hanson-Wilson Inc. offered its services for the
construction of the second track for the Trinity Railway Express
(part of DART system) between Irving and Dallas, Texas for 79-MPH
train operations. The project involved two new bridges, new interlockings,
grade crossings and re-profile of Wildwood Drive.
Bridge 637.0 over the Elm Fork of the Trinity River is a 1523 ft
long structure consisting of 46 precast concrete approach spans
and a 140 ft thru plate girder main span with steel ballast deck
& walkways. The approaches are founded on pile bents while the
main span rests on concrete piers with piling. The new structure
was build 25 ft offset from the existing bridge at this location.
The timber trestle approaches of the existing span are also to be
replaced as a part of this project.
Bridge 637.45 over Regal Row is a 196 ft long structure consisting
of steel beams and a cast-in-place concrete ballast deck & walkway.
The four spans are seated on cast-in-place concrete piers and abutments
founded on 36 in. and 48in. diameter drilled shafts. The new bridge
is being constructed 20 ft offset of the existing bridge and was
designed to match it aesthetically.
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