The New Jersey Water Environment Association (NJWEA) hosted its 2024 Winter Technology Transfer Seminar on March 4 – 7, 2024 at the Sheraton Eatontown Hotel, Eatontown, NJ. On March 5, D&B Vice President Adriana Restrepo P.E., ENV SP and D&B Senior Associate Kevin Nastos presented the “Suffolk County Department of Public Works Clean Water for Carlls River” sewering project.
The presentation focused on the technical aspects of the project, which redirected sanitary waste from private residences into the Bergen Point Wastewater Treatment Plant. The project included installation of 150,000 linear feet of low-pressure sewer pipe, 2,300+ residential Grinder Pump Units (GPUs) to replace on-site cesspools and septic tanks, and a 48-inch extension to the original reinforced concrete pipe connecting to the Bergen Point Wastewater Treatment Plant. The Carlls River project also involved unique engineering solutions such as trenchless construction methods that minimized disruption and area damage, Horizontal Directional Drilling, pipe jacking methods, vibration monitoring, micro-tunneling under a busy parkway and ground freezing techniques.
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