North Hudson Sewerage Authority Netting Chambers and Slabs

North Hudson Sewerage Authority Netting Chambers and Slabs

OwnerNorth Hudson Sewerage Authority
Completion Date2019
ServicesStructural Design
Project Description

The North Hudson Sewerage Authority (NHSA) operates a combined sewer collection system in northern New Jersey.

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At low flow, sewage from Weehawken, NJ was directed to a sewage treatment plant, but during times of high flow, sewage flowed directly into the Hudson River. A screening facility in Weehawken was initiated to capture, remove and prevent the discharge of solids. Weehawken chose to install a twin-chamber screening station solution. Each chamber took six weeks to fabricate and measured 16-feet-by-48-feet-by-16-feet tall, weighing approximately 300,000 pounds. The first 11 elements were shipped via truck to a New Jersey shipyard where a barge with a 100-ton revolving crane loaded the pieces in sequence onto another barge for transportation and installation.