This project involved engineering services including field surveying, base mapping, detailed design and construction services for a 10” water main replacement along Webster Street in Harrison Township, Ohio. 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 and that will do the same during future repairs. A major design consideration was the connection required with the City of Dayton’s existing 42” water line; which could not be taken offline. Therefore, NCI designed a live connection that allowed the 42” main to remain in service during construction. As added value, NCI met with existing business owners throughout the project corridor to gather water usage data, work schedules and trucking patterns to assist with our design to minimize disruptions to service and to accommodate the amount of heavy truck traffic within the area. Proper construction phasing and maintenance of traffic phasing was critical to the successful design.
CLIENT: Montgomery County Environmental Services