City of Harrison, NY. Sewer Upgrades
The existing sanitary sewer line and manholes were being upgraded on Osborn Road in the city of Harrison. The new lines were to be run under the road in an area with soil conditions unsuitable to support the loads of the 8 inch D.I.P. and concrete manholes. Large amounts of silty sands and a high water table required the need for a deep foundation to support the sewer and water lines. In order to transmit the loads of the D.I.P. to the piles, a special pile cap was fabricated. Each cap consisted of a W-Shaped beam turned on its side and welded to a pipe. All pile caps were hot-dipped galvanized. FSI worked on a critical schedule during which the main streets in the city of Harrison were closed. FSI completed the installation of 53 piles over the course of 2 weeks.
Sanitary Sewer System, City of Harrison, NY
City of Harrison sanitary sewer upgrades
(53) helical end bearing piles were installed to 40 kips. Each pile consisted of 10"x12"x14" lead sections.
Depths ranging from 50'-100'.