Second Avenue Subway Construction Details

Since the MTA is close to signing a contract for the first phase of work for the long-awaited Second Avenue Subway (the T line), we were perusing MTA's presentation to Community Board 8 about the "Constructability Approach."

The presentation was given last June, with hopes a slurry wall and a 96th Street "Launch Box" could be built by the end of 2006; since that never happened, the timelines are negligible. But what was interesting were the details about the construction and impacts the first phase could pose. We're included them below and after the jump (read the part about rodents!). Oh, and the image at top shows building monitoring devices - folks on the Upper East Side may be seeing a lot of those.

Construction Activity and Work Hours
Surface Work for Launch Box:
- 2 shifts, 5 days/week: 7AM to 10PM
- 1 shift Saturday: 10AM to 7PM
Underground work:
- 3 shifts, 7 days/week

Trucking & deliveries:
- 2 shifts, 5 days/week: 7AM to 10PM
- Some night deliveries for large equipment
- 1 shift Saturday: 10AM to 7PM

Impact and Mitigations
Traffic:
- Traffic monitoring program
- Maintain 4 lanes through construction zones
- Keep cross street open (12 foot lane)
- Relocate bus stops to outside of construction zones

Pedestrian:
- Minimum 7 foot wide sidewalks

Local Access:
- Maintain pedestrian access to all buildings
- Maintain emergency vehicle access at all times
- Maintain special zones for deliveries
- Provide areas for garbage disposal for residential & commercial purposes