Operating on orders to double the capacity for traffic mobility, but design "no higher and no wider," design firm Bridgefarmer & Associates worked tirelessly over the course of five years to complete the I-635/LBJ Managed Lanes project in Dallas. A project that had been on TxDOTs books for nearly three decades, the 1-635/LBJ Managed Lanes project reconstructed the freeway's eight existing general-purpose lanes and added six new managed, depressed lanes in an excavated trench section. "1-635 was one of the worst-congested freeways in the country for many, many years," Mansoor Ahsan, P.E., CEO of Bridge-farmer & Associates, told Roads & Bridges. "And TxDOT has tried to widen the corridor many times, and simply couldn't because it's fully developed."
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