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New Albany/Blacklick Sanitary Sewer Conceptual Planning

Columbus/New Albany, OH

The Blacklick Creek Sanitary Interceptor Sewer (BCSIS) is located in the far northeastern region of the City of Columbus regional facility planning area, consisting of roughly 20,000 acres. The Blacklick Sewershed encompasses the City of New Albany and Jefferson Township in addition to Columbus. The conceptual vertical and horizontal alignment from the sewer was refined from past studies to optimize the design and provide future system flexibility. The BCSIS sewer design and evaluation provided the City of Columbus with the ability to manage and control their sanitary system by having the capability for inline storage and future capacity to convey flow from the Rocky Fork Sewershed. Further, the design accounted for the installation of a major interceptor sewer in a fully developed residential area to protect groundwater wells and traffic patterns in the area. EMH&T led a team of in-house experts and subconsultants to provide the following services: tunnel, shaft, and site design; evaluation and recommendation of materials and construction methods; easement and permit acquisition; collection and analysis of geotechnical data (including the use of geophysical methods); collection of existing utility data and coordination with utility owners; topographical survey; and, cost estimation for the Blacklick Creek Sanitary Interceptor Sewer, Section 6, Parts B&C. The interceptor sewer consists of approximately 4.5 miles (approximately 23,000 linear feet) of 120 inch internal diameter tunnel which will extend the existing Blacklick Interceptor from Blacklick Ridge Boulevard to Morse Road along Reynoldsburg-New Albany Road. The sewer will convey existing, or provide sanitary sewerage service for Jefferson Township and New Albany City areas, either directly or through future connections.

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