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Office renovations of Building 210 - Washington Navy Yard The scope of work for this Department of the Navy/United States Marine Corps project involves removing approximately 6000 linear feet of above ground steam piping, supports and 3000 linear feet of sidewalk. The new water mains will replace the existing very old transit water mains that are leaking. The replacement of the water mains will support the increasing population and base requirements as well as the expanding infrastructure. Each section of pipe that we install needs to be treated and tested prior to a final connection. This project requires special coordination issues above and beyond any unforeseen sub-surface conditions encountered along the way. One is the relocation of approximately 1500 linear feet of jersey barriers to allow traffic lane closures that provide a safe environment for the workers, pedestrians and vehicles alike while minimizing impact to the daily operations of the base. A second included the removal of approximately 6000 linear feet of above ground steam lines, supports and approximately 3000 linear feet of sidewalk. There are two existing water mains directly below the supports for the steam lines, which are currently leaking and must remain in service until we have completed the installation, testing and tie-in of the new water mains. Close coordination with contractors working on other Marine Corps projects in the immediate vicinity will be crucial to mission accomplishment. Examples of this involves a contractor engaged in replacing the Chopwamsic Bridge that lead to the Officer Candidate School and a contractor actively replacing the fence between the existing steam lines and the railroad tracks. The contractor tasked with repairing the bridge work will also provide two new valves that this water main project ties into. Additional coordination involves working hand in hand with the Marine Corps Air Facility to access their secure area to install an air release valve and approximately 2500 linear feet of 12’’, 14’’ and 16” inch water lines that will ultimately be tied-into multiple locations within the facility. |
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