LBJ Managed Lanes Project
CobbFendley led the Utility Design, Utility Coordination and Subsurface Utility Engineering (SUE) efforts for the LBJ Managed Lanes project, which was implemented to relieve severe congestion on 13.3 miles of IH 635 (LBJ) from just west of IH 35E to just east of US 75. The project also involved mapping over 300,000 linear feet of Quality Levels B and 550 Quality Level A test holes and coordinating the test hole profile data as part of PS&E preparation for developer and owner managed Utilities. Additionally, CobbFendley quality reviewed each PS&E package prior to TxDOT and utility owner review and approval. Value added joint trenches, joint bores and reroutes were implemented by meeting utility owners for approval and considering specific owner master utility development plans. In so doing, some alignments were rerouted and thus eliminated.
The PS&E packages for 58 utility agreement assemblies for longitudinal and crossing relocations were sequenced in Sections to accommodate the LBJ Managed Lanes accelerated master construction schedule. Utilities under direct design supervision included Dallas Water Utilities, Oncor, AT&T Texas, Level 3 Communications, Zayo Communications, XO Communications, Fiberlight, Verizon Business, Qwest, Time Warner Cable and TW Telecom.