Construction Update: Weeks of 3/29/21 and 4/5/21

View a PDF version of this week's update

What is Happening

Columbia Business School

Site 7 (Western Site)

• Completion of exterior wall glass-fiber reinforced concrete unit installations on floors 4 through 11
• Preparation and installation of exterior glass doors is in progress
• Interior fit-outs and overhead mechanical, electrical, and plumbing installation on floors 1 through 11
• Three construction use cars are in service

Site 6B (Eastern Site)

• Completion of exterior wall glass-fiber reinforced concrete unit installations on floors 2 through 8
• Preparation and installation of exterior glass doors is in progress
• Interior fit-outs and overhead mechanical, electrical, and plumbing installation on floors 2 through 8
• Three construction use cars are in service

Below Grade Activity / W. 131st Street Utilities

• Installation of storm, sanitary piping, electrical conduits, low voltage and HVAC ductwork is ongoing
• Emergency system including automatic transfer switches were tested and are energized
• Buildout work of the loading dock is progressing.  The installation of dock levelers is complete.
• Metal panel comeback work is substantially complete
• Spackling and painting walls are ongoing throughout
• The truck ramp ceiling is substantially complete
• Installing tiling, acoustic ceiling tile ceiling, and countertops

Open Spaces between 130th and 131st Streets and along 12th Avenue

• Stone installation of inner and outer ring
• 12th Avenue formwork and reinforcement
• Perimeter trench drain formwork, reinforcement, and concrete placement
• Structural backfill is in progress
• Electrical and low voltage conduit installation
• Light pole pier formwork and rebar installation 

Con Edison Vault Exploratory Test Pit Work at 125th Street

• Exploratory test pit work on the south side of W. 125th Street at Broadway has been completed and the sidewalk to the east of Prentis Hall has reopened

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. After-hours permit issued for 6:00 a.m. construction start to allow for physical distancing for workers upon entry to the site.
• 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 Avenue is open for one-way westbound traffic