Resident Engineering Inspection Services for Trunk Water Mains at 8th Avenue, Borough of Manhattan
JED Engineering was retained as a sub consultant to provide resident engineering inspection for this high profile infrastructure project. The project location covers eight blocks in the historic (West Village) Greenwich Village section of Manhattan. The project area is mostly residential with sizable presence of retail stores.  It exudes a chic cachet, typical of Greenwich Village.  The objective of this project is to connect Shaft 27B (over Water Tunnel No. 3) to the water main distribution network.

The major subsurface work consisted in the installation of two 36” steel water mains lines emanating from shaft 27B and 12” DI distribution water mains. One of the branches of the 36” steel main runs from shaft 27B (located on the south sidewalk of Gansevoort Street) to W13th Street west of Gansevoort Street where it is capped for future connection. The other branch of the 36” steel water main runs from Shaft 27B east on West 13th Street, south on 8th Avenue to connect to and existing 30” cast iron mains on West 12th Street (east and west of 8th Avenue). The water main work also includes the installation of 36” flow meters, 36” butterfly valves, 24” regulator valves, blow-offs, air cock hydrants and their appurtenant chambers.

The project also involved the rehabilitation of three sections of combined sewers by guniting and associated sidewalks and roadway reconstruction.

Construction Cost: $20 million

Status: Completed Dec. 2015