This project involved the field survey, preparation of basemaps, detailed design and construction services for the replacement of approximately 12,200 LF of 8” water main within the Arthur Plat Subdivision of Harrison Township, Montgomery County, Ohio. NCI coordinated the design effort with MCES, Harrison Township, and home/business owners throughout the project corridor, which consisted of primarily residential neighborhoods. NCI provided our recommendations on the optimum alignment that could be applied to the design and construction of this project. The proposed replacement was expected to be within the existing road right-of-way so the acquisition of new easements was unnecessary. The primary installation method included open-cut trenching. NCI ensured alignment continuity both horizontally and vertically, provided successful utility coordination, and designed tie-in connections and valve placement that minimized the area cut off from water during construction. Since the new water main occupied the roadway, NCI designed our modifications to avoid the existing water main, and existing sanitary sewer and storm systems also located within the roadway. This coordination allowed NCI to develop the water main alignments to avoid conflicts during construction and save money by minimizing construction change orders.
CLIENT: Montgomery County Environmental Services