The Katy Trail is a jogging, walking, inline skating, and bicycling path that runs through the Uptown and Oak Lawn areas of Dallas, Texas, following the path of the old Missouri‐Kansas‐Texas Railroad, which was formally known as MKT or the Katy.
The construction work to convert the unused 3.5 mile long railway track into a hiking trail took place between 2000 and 2007. Since its completion, the hiking trail has seen serveral expansions and is currently undergoing a final extension. The new part is 0.65 miles long and will include 2 pedestrian bridges.
The project requires unique engineering and structural monitoring approaches due to the fact that one of the bridges over Mockingbird Lane sits atop a DART tunnel. To push the bridge foundation away from the tunnel, a cantilever suspension bridge design had to be utilized . This step is crucial to monitor movements across the existing cracks in the tunnel lining and the rotation of the retaining structure.