Design-build mechanical contractor Murphy Co. received a 2015 Keystone Award from the Associated General Contractors of Missouri at the 18th Annual Construction Keystone Gala Nov. 12. Murphy’s work as a specialty contractor on Republic Services’ Bridgeton Landfill won in the industrial/infrastructure category for projects $5 million and more.

The 18th Annual Keystone Awards were presented to 12 contractors chosen from a group of 35 finalists covering a broad spectrum of project types including hospitals, educational buildings, treatment plants, energy production facilities, roads and churches. The Keystone Awards recognize a contractor’s success in achieving solutions during construction for challenges faced on a project. The awards honor construction professionals whose skill, teamwork and spirit of innovation make a lasting contribution to a community by building the facilities that support and enhance the quality of life.

Murphy Co. President Patrick Murphy Jr. said Bridgeton Landfill was a high-profile project and one of the first designs of its kind in the country. It was a grass roots plant developed to remove the leachate from the Bridgeton Landfill, clean and dry it, and haul off the solids so that the remaining fluid can be disposed of at the MSD Bissell Point treatment plant. Cooling towers and heat exchangers were added to cool the leachate. The St. Louis-based mechanical contractor was instrumental in implementing the initial design, providing complete design-build services for the structural platforms for the cooling towers, and plate-and-frame heat exchangers.

Murphy engineers took the lead in developing a BIM model of the tank farm. The mechanical firm installed all the process equipment, including pumps, pipe, mixers and related control devices. It also fabricated all the piping, HVAC and plate for structural platforms, with 99% of the welds performed and equipment pre-assembled in Murphy’s fabrication shop to maintain quality control and aid in scheduling.

The award-winning Murphy project team included John Koebbe, senior project manager; Steve Harting, senior plumbing designer; Dan Martin, P.E., HVAC designer; Randy Dimberger, piping foreman; Bruce Naumann, plumbing foreman; and Dan Egley, sheet metal foreman.