Sometimes Big Problems Require Small Solutions – Microtunneling in New York City Reduces CSO Events

摘要

The Bergen Basin Sewer project consists of the construction of a new 48-inch parallel interceptor sewer beneath the busy Belt Parkway near JFK Airport in New York City. The project is intended to reduce combined sewer overflow (CSO) discharges into Bergen Basin and Jamaica Bay by relieving an existing hydraulic bottleneck in the West Interceptor to the Jamaica Wastewater Treatment Plant.To reduce construction cost, minimize traffic and environmental impacts, and expedite construction schedule, the new interceptor sewer was specified to be constructed using trenchless methods in lieu of open-cut construction. Soil, groundwater, and environmental conditions were favorable for microtunneling, which was the required method of construction.