6. DART Blue Line Extension
PROJECT COST: $187,699,904
The DART Blue Line is an expansion of an existing track running from Garland to Rowlett. The Dallas Area Rapid Transit project includes 4.8 mi of light-rail double-track guideway running along an existing freight rail right-of-way. Existing right-of-way widths vary from 100 to 150 ft. The extension will be at-grade double track, will include fencing or other physical barriers along the right-of-way for security purposes and includes one station.
The project begins at the existing downtown Garland Station and extends to a new station proposed in downtown Rowlett. The scope of work includes multiple drainage and utility relocations and improvements; seven bridges (the largest of which is more than 2,600-ft long); ballast walls, cut walls and MSE retaining walls; and 8,300 lin ft of freight track realignment.
Construction Start Date: March 2009
Expected Completion Date: December 2012
Utilizing BIM? No
Seeking LEED certification? No
Owner/Developer: Dallas Area Rapid Transit, Dallas
General Contractor: Austin Bridge & Road, Irving
Civil, Structural and MEP Engineer: Parsons Brinckerhoff, Dallas
Main Specialty/Subcontractors: L.K. Comstock & Co. Inc., Norcross, Ga.; RailWorks Track Systems, Lakeville, Minn.