New York Water Siphons
|Location:||New York, USA|
|Project Type:||Water Tunnel|
|Customer:||OHL New York|
|Products:||1x mobil california switch
5x mortar car 3,5/4m³
The new, 72-inch siphon was excavated at a depth of 100 feet and will replace the two, nearly century old, existing water connections that run from Bay Ridge in Brooklyn to Stapleton and Tompkinsville on Staten Island. The new siphon serves as the back-up water feed for Staten Island and conveys approximately 5 million gallons of water each day. If needed, it has the capacity to carry up to 150 million gallons per day.
The Earth Pressure Balance TBM was used for the first time in New York City. It is made specifically for use in soft ground as opposed to bedrock, excavates and simultaneously installs four foot-wide concrete pre-cast segment rings to line the tunnel wall.