Construction Update: Weeks of 5/24/21 and 5/31/21 | Columbia

Check out a PDF version of this week’s update

What is happening

Columbia Business School

Site 7 (Western Site)

  • Completion of exterior wall installations of glass fiber reinforced concrete (GFRC) on floors 4 to 11
  • Testing of the fire alarm system will take place on Monday, May 24 at 2:30 PM to confirm the pressure of the fire extinguisher line. While testing is in progress, a hose will pour water from the top of the building to W. 131th Street. Flag people will be available to guide pedestrians and vehicles.
  • The water testing of the outer wall will take place in the week of May 24. All tests take place on the construction site.
  • Preparation and installation of exterior glass doors
  • Interior fittings (walls, glass partitions, ceilings, floors, millwork, GFRG) and above-ground mechanical, electrical and plumbing installation (MEP) on floors 1 to 11

Site 6B (Eastern Site)

Below Grade Activity / W. 131st Street Utilities

  • Installation of permanent lighting, sockets and appliances, security cameras and wireless access points
  • Installation of toilet and sanitary facilities
  • Fire alarm testing is complete
  • The construction of the loading dock is progressing
  • The comeback of metal panels is almost complete
  • Spackling and painting walls are going on everywhere
  • The ramp ceiling of the truck is almost complete
  • Installation of acoustic ceiling tile ceiling. Countertops and ceramic tiles are completed. Painting is underway.

Open spaces between 130th and 131st Street and along 12th Avenue

  • Continuation of living roof layer
  • Structural replenishment, reinforcement, formwork and concrete top plate in progress
  • Installation of power lines, cobblestones and ditch drains. Hanover pavers / hardscape to start

600 W. 125th Street

  • This phase of the remnant wall project for the adjacent property, Tiemann Place 31, has been completed. Wall repairs, wall adjustments and exit stairs have been completed.
  • Excavation and Foundation Contractor begins excavation in support of Excavation Systems (SOE) and begins installation of SOE in the week of May 31
  • Con Edison is improving utilities on W. 125th Street, west of Broadway

Please note that all activities are subject to change based on weather and other field conditions.

What to Expect

Construction activity

  • Normal working hours on working days: 7:00 am to 6:00 pm Working hours on Saturday and Sunday: 7:00 am to 5:00 pm After office hours permit issued before 6:00 am, construction starts to allow physical distance for workers on entry to the site. Permit issued Monday through Friday from 6:00 pm to 11:00 pm for installation of exterior walls in the Business School buildings outside of office hours.
  • Material deliveries to the site are underway

Temporary consequences for traffic and transport

  • Please refer to street signs for the west side of Broadway from 129th to 130th Street – parking is allowed after 6pm and on weekends
  • W. 131st Street between Broadway and 12th Avenue is open to westbound one-way traffic
  • The parking lot closes on the south side of W. 125th Street from Broadway to St. Clair Place. There is no parking on the south side of W. 125th Street from Broadway to the center block for the entire length of the 600 W. 125th Street fence.

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