1. NYC Infrastructure Overview
Professor Patricia Lancaster, FAIA
Masters of Science in Real Estate Development
Infrastructure and Urban Development

2. What lies beneath New York City?
• NYC Underground
– First 30ft, water
mains, power
mains, telecom
cables
– Next 200ft, subway
tunnels and sewer
lines
– 800ft or 70 stories
down, water
tunnels
Water mains
subway
sewers
subway stations
steam
gas mains
cable/telecom
electricity
deep water tunnel

3. Second Avenue Subway
• First major expansion in over 50
years
• Two track line along 2nd Ave from
125th Street to the Financial Center
• Includes connection from 2nd Ave
through the 63rd Street tunnel to
existing service connections
• 16 ADA accessible stations with
escalators, stairs and elevators
• $4.45 Billion
• Four phases

5. East Side Access
• Largest transportation
project in USA
• Brings LIRR into GCT
• $8.3 billion
• Started in 2006;
completes in 2019
• 160,000 passengers/day
• 330,000 sf concourse
• (2) 200,000 sf caverns
housing eight tracks -
160’ below grade

6. #7 Line Subway Extension
• $2.1 million - City
financed by Tax
Increment Financing
from West Side Yards
• Station and two
tunnels
• 1-1/2 miles west of
Times Square
• Complete June 2014

7. City Water Tunnels
Two large water tunnels—both
in serious need of repair--
distribute water
• City Tunnel No. 1
– First put into service in 1917
– Carries 500-600 million gallons a
day
• City Tunnel No. 2
– Completed in 1936
– Carries 700-800 million gallons a
day
• City Tunnel No. 3
– Stage 1 is already in service
– The Manhattan portion of Stage 2
will be in service in 2013
– When completed in 2020, it will
allow DEP to shut down and
repair No. 1 and No. 2 for the first
time in history

8. Water Tunnel #3
• Tunnel #1 - 1917
• Tunnel #2 - 1936
• Tunnel #3 - started in
1969 and is due to be
completed in 2020
• 60 miles long
• $6 billion
• As much as 800’
below grade
• MN diameter 24’