Each spring, New England is all but guaranteed several Nor’easters. The Quincy, Massachusetts, coastline is no stranger to these destructive storms that pound the area with high winds, rain, and storm surge every spring.Sewer infrastructure lies directly on Bayside Beach in the City of Quincy: pipes are literally on the sand and manholes stick up like New England lighthouses - slightly less appealing lighthouses. Due to its location, proximity to Quincy Bay, and the exposure to the elements, this 1,600 LF stretch of 12-inch sewer infrastructure is considered one of the highest consequence of failure pipe segments in the city of Quincy.Rehabilitating 1,600LF of 12-inch sewer within the tide line and manholes 10-feet above grade is no easy task. This paper will discuss the cost and environmental impact comparisons of trenchless rehabilitation, replacement in kind and the remove-and-relocate option - and how ultimately the city rehabilitated this section of pipe using cured-in-place pipe (CIPP) trenchless technology for a fraction of the cost of other options to prevent catastrophic failure, sewer system overflows, and costly emergency repairs. Unique elements of this project to be covered include accessing manhole covers 10-feet above the grade of the beach and limiting construction damage to existing pipes and shoreline.
展开▼
