Working in conjunction with Spiniello, Sunbelt Rentals Pump & Power Services division executed one of the largest sewer bypasses performed in the Mid-Atlantic to date.
The City of Baltimore released the Sanitary Contract 875 — Rehabilitation of Southwest Diversion Pressure Gravity Sewer — Phase III in early June 2013 with a bid date of Aug. 28, 2013. Designed by engineering firm RK&K, the scope of the project included the trenchless rehab of a 78-in. pre-stressed concrete cylinder pipe (PCCP) utilizing two types of rehab technologies. The first method involved the use of approximately 2,550 lf of CIPP, and the second included 2,140 lf of carbon fiber reinforced polymer (CFRP). This project also required the rehabilitation of a bar screen structure at the upstream section of the 78-in. pipe in which two interceptors converge (one 54-in. and one 60-in.) to form the 78-in. pipe. Lastly, and perhaps most critically, was the provision and maintenance of a dry work environment while the rehab work was performed.

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Ladd Gould
"Baltimore Bypass: Joint Efforts Lead to Successful Bypass of Large Interceptor"
www.trenchlessonline.com
April 19th, 2016

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