APM & Associates, Inc., 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.