Project Location :
Queens, New York City, NY, USA
Owner :
DEP (Department of Environmental Protection), New York City
Design Firm :
-
Contractor :
GPS (Grow-Perini-Skanska)
Construction Manager :
-
Purpose of the Tunnel :
To improve fresh water distribution throughout the city
Excavation Start :
1996
Excavation End :
1999
Bid Value :
170,000,000 USD
Geology :
TBM Specifications :
Robbins
235-282 high-performance tunnel-boring machine.
23.18-ft cutterhead diameter
50 19-inch disc cutters with 0.75-inch tip with and 70,000 lbs max. cutter load
4220 hp cutterhead power
3,500,00 lbs total installed thrust
Publications :
Khalighi B. B., Diehl J. J., "High Performance Tunnel Boring Machine for Queens Water Tunnel, No. 3: A Design and Case History", RETC 1997.
Merguerian C., Ozdemir L., "Rock Mass Properties and Hard Rock TBM Penetration Rate Investigations, Queens Tunnel Complex, NYC Water Tunnel #3, Stage #2", RETC 2003.