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What is Happening
Columbia Business School
Site 7 (Western Site)
- Exterior wall coordination is ongoing
- Elevator trade has mobilized to site
- Plumbing and ductwork are in progress up to roof level
- Curtain wall installation is in progress on levels 3 through 11
- Framing for urban layer glass is in progress
- Interior wall layout and framing in progress up to level 10
- Overhead mechanicals ongoing
- Rooftop equipment will be picked and set
Site 6B (Eastern Site)
- Concrete slab placed up to level 9
- Interior wall layout and framing is in progress up to level 5
- Exterior east elevation metal panel framing is installed up to level 6
- Curtain wall curbs and anchor installation are up to level 7
- Exterior wall panels installation is in progress on levels 3 through 5
- Riser shaft 4 ductwork and riser shaft 6 shaft wall are in progress
- Storm/sanitary piping is ongoing
Below Grade Activity / W. 131st Street Utilities
- Domestic water, sanitary, and storm-piping is ongoing at all levels
- HVAC piping work is ongoing in sub-cellar levels 1 and 3; chilled water main and high-pressure steam piping in the utility tunnel are progressing to completion
- Air handling units at sub-cellar level 1 and W. 130th Street energy transfer room equipment are being hooked up with piping and ductwork
- Sprinkler system installation is in progress
- Fire alarm system installation is in progress
- Installation of masonry walls at ramp, sub-cellar level 3
- Concrete placement for equipment pads is ongoing
- The W. 130th Street energy transfer room equipment installation is ongoing
- Sheet metal ductwork in sub-cellar level 1 of Site 7 and Site 6B, and sub-cellar level 3 of W. 130th Street
- Ductwork risers are ongoing in mechanical shafts in Site 7 and 6B
- L1 Plaza drainage, waterproofing, and topping slab development work is on-going
- Block filler and floor sealant is ongoing
W. 125th Street South Side Demolition
- Third Submission of Demolition Plans to be sent to NYC Department of Buildings
- Mechanical, electrical, and plumbing disconnects at the east wall at Prentis Hall and wall patching
- Removal of condenser unit from warehouse roof at 3191 Broadway
- Asbestos-containing materials survey at Prentis Hall east wall
Please note that all activities are subject to change based on weather and other field conditions.
What to Expect
Construction Activity
- Regular weekday work hours: 7:00 a.m. to 6:00 p.m. Saturday and Sunday work hours: 7:00 a.m. to 5:00 p.m.
- Material deliveries to site is ongoing
Temporary Traffic and Transportation Impacts
- Refer to street signage for the west side of Broadway from 129th to 130th Streets -- parking is allowed after 6:00 p.m. and on weekends
- W. 131st Street between Broadway and 12th Ave. is opened for one-way westbound traffic