will be supplying ten elevators for New York's City Tunnel No. 3, which
is one of the most complex and intricate engineering projects in the
world. Constructed by the New York City Department of Environmental
Protection (DEP), the tunnel will eventually span 60 miles and is expected
to be complete by 2020. The total cost of the project is expected to
be about $6bn.
and length of the tunnel, its sophisticated control system, the placement
of its valves in special chambers, and the depth of excavation, represent
state-of-the-art technology. While City Tunnel No. 3 will not replace
City Tunnels No. 1 and No. 2, it will enhance and improve the adequacy
and dependability of the water supply system and improve service and
pressure to outlying areas of the city. It will also allow the DEP to
shut down, inspect and repair City Tunnels Nos. 1 and 2 for the first
time since they were activated in 1917 and 1936 respectively.