Weeks of 12/16/19 and 12/23/19

Project site, aerial view looking northeast, December 13, 2019

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 level 10
  • Curtain wall installation is in progress on levels 3 through 11
  • Urban layer fins installation to begin
  • Interior wall layout is in progress up to level 10
  • Overhead mechanicals ongoing

Site 6B (Eastern Site)

  • Concrete slab placed up to level 9
  • Spray on fireproofing is up to level 7
  • Interior wall layout and framing is in progress through level 3
  • Exterior east elevation metal panels are installed up to level 6
  • Curtain wall curbs and anchor installation are up to level 6
  • Exterior wall panels are expected to begin December 20
  • Riser shaft 4 ductwork and riser shaft 6 shaft wall are in progress
  • Storm/sanitary piping ongoing

Below Grade Activity / W. 131st Street Utilities

  • CDS # 3 (a unit that captures and treats stormwater runoff onsite before entering the city's sewer system) storm and sanitary piping from 3pm to 11pm
  • Domestic water, sanitary, storm-piping, and floor drains installation is ongoing on all levels
  • Sprinkler system installation is in progress
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  • Fire alarm system installation is in progress in a utility tunnel and sub-cellar level 1
  • Installation of masonry walls, concrete curbs, and equipment pads at sub-cellar levels 1 and 3
  • Air handling units installation is in progress
  • 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, sub-cellar level 3 of W. 130th Street
  • Ductwork risers are ongoing in mechanical shafts in Site 7 and 6B
  • West loading dock development ongoing
  • L1 Plaza cricket and waterproofing work
  • Block filler ongoing
  • Installation under side of ramp ongoing
  • Top down wall construction ongoing in Site 7, sub-cellar level 1
  • Elevator contractor mobilized on-site

W. 132nd Street Demolition Project

  • Demolition of 3259 Broadway and 602 W. 132nd Street was signed-off by the Department of Buildings and letters of completion have been received

W. 125th Street South Side Demolition

  • 3191 Broadway abatement is scheduled to be complete on December 16
  • Department of Environmental Protection and Con Edison disconnects are ongoing for the warehouse at 614 W. 125th Street

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