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APM was a part of the team that was contracted to perform engineering design services for the improvements to the existing Tom Braniff drainage channel. As part of our scope, we performed a complete hydraulic analysis of the existing storm sewer system throughout the entire airport including any off-site contributions. Using this analysis, it was determined that by upgrading the existing earthen drainage swale to a concrete lined channel, the capacity of the existing system was greatly increased.


APM was then tasked with providing design drawings and specifications for approximately 1300 LF of channel improvements, including an additional box culvert at each of three street crossings over the channel. In addition, APM provided construction management services during the installation of the new drainage system. 


APM responsibilities included the development of concrete specifications and mix design, and quality assurance and calculation check for the design of the prestressed U-beam superstructure, cast-in-place substructure, post-tensioned bent caps, and the emergency walkway.  In addition, APM was involved with the structural steel design of the stations at each of the terminals. APM senior level engineers were also involved with developing the structural specifications, reviewing contractor submittals and peer review of final drawings. 

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