181 Mercer Street

Overview

181 Mercer Street , the new multi-use building expected to be completed in late 2021, will house much-needed new classrooms, performing arts education and training spaces, a modern athletic facility, student and faculty housing, and approximately 7,500 square feet of space for a public atrium and community uses. This project also features a number of open space enhancements.

NYU is committed to minimizing the effects of dust, noise, and traffic in the vicinity of the construction site and has developed a plan with Turner Construction Company (NYU’s construction manager for the project) to implement NYU’s Restrictive Declaration commitments for construction mitigation. With the approval of the Department of City Planning, Henningson, Durham & Richardson Architecture and Engineering, P.C. (HDR) has been retained as the independent third party monitor to oversee NYU’s mitigation efforts. Read HDR's report from Fall 2016, Winter 2017, Spring 2017, Summer 2017, Fall 2017, Winter 2018, and Spring 2018 or learn more about how we plan to minimize the effects of dust, noise, and traffic in the vicinity of the site.

 

Work Hours

  • Monday - Friday, 8:00 am - 4:30 pm
  • Workers may arrive onsite as early as 7:00 am.
  • Neighbors will be given advance notice of any changes to the work schedule.

Scope of Work

  • Decommissioning of the Coles building began in February 2016 and project site mobilization and demolition of the Coles building commenced in October 2016.
  • As per the NYC Department of Transportation and Department of Buildings, a sound attenuating construction fence was installed around the perimeter of the 181 Mercer Street site. To learn more see a site map or visit our About the Project Site FAQ page.
  • Intermittent loading and unloading of deliveries and equipment may temporarily impact vehicular and pedestrian traffic. Flagmen are scheduled to be onsite to guide vehicular and pedestrian traffic around the perimeter of the project site during the receipt of deliveries.
  • Periodic material deliveries and staging, dumpster and asbestos disposal truck placement, crane use, etc, will be located within the fenced in perimeter of the project site.
  • Periodic asbestos abatement will require the use of a specialized disposal container.
  • Salvageable items not dispersed to departments across the University were made available to local public schools and nonprofit organizations.
  • As with any active construction site, dust may be generated in the area immediately surrounding the work and noise and odors may be generated by hand tools and mechanical equipment such as jackhammers, saw-cutters, excavators, and burners. Learn more about how we plan to minimize the effects of dust, noise, and traffic in the vicinity of the site.
  • The 181 Mercer Street Open House Space, located in the NYU Gould Welcome Center at 50 West 4th Street, between LaGuardia Place and Mercer Street, is open to the public and the NYU community on Mondays from 3:00pm-5:00pm and by appointment.

Project Timeline

  • Pre-construction work began in February 2016. The project is expected to be completed in late 2021.
  • Project site mobilization and demolition of the Coles building commenced in October 2016 and continued through February 2017.
  • Excavation, which includes the removal of the existing foundation, rock, and soil, began in May 2017 and is scheduled to continue through winter 2018.
    • The 181 Mercer Street team has submitted an application to the NYC Office of Environmental Remediation (OER) to take part in the New York City Voluntary Cleanup Program (VCP). Projects that are part of this program employ high quality cleanups that meet State standards. This program ensures that all vacant land with light to moderate levels of contamination—known as "brownfields"—can be cleaned up and redeveloped in a manner that protects public health and the environment.
    • More information about this program can be found at the OER website, which includes a Fact Sheet about the project’s participation in the program. 
  • Foundation work began in fall 2017 and is scheduled to continue through late 2018.
    • As part of the foundations phase, localized dewatering operations will take place onsite, as determined by site conditions. Dewatering uses pumps to remove water that infiltrates holes dug during the foundations operation and ensures that water is discharged in accordance with the project's Restrictive Declaration, NYS Department of Environmental Conservation regulations, and NYC Department of Environmental Protection regulations. Site conditions and instances such as heavy rain may require overnight dewatering. Neighbors will be given advance notice of the need for overnight dewatering, which requires the use of mechanical equipment located near Houston Street within the construction site.    
  • Core and Shell: work includes the construction of the building structure and façade. Enclosure of the building is currently scheduled to be completed in winter 2020
    • As foundations are being completed onsite, core and shell work is scheduled to begin in late December 2018/early January 2019. This work includes site mobilization and the erection of the building’s steel structure and façade, which is scheduled to continue for 18-months. The phase will conclude with the enclosure of the building scheduled for late 2020.
    • Site mobilization for the erection of the building’s steel structure will require the use of two tower cranes and one crawler cranes during this phase of work.
    • The crawler crane will move around the project site while the tower cranes’ locations will be fixed on the eastern site periphery along Mercer Street. The tower cranes need to be able to reach each corner of the building to load and place steel. The cranes will be used to move and assemble the steel and the façade as it arrives to the project site.
    • All cranes will be used in accordance with the safety protocols proscribed by the manufacturer and the NYC Department of Buildings (DOB).
    • In addition to the use of cranes to move and assemble the steel and facade as it arrives to the site, hand tools and mechanical equipment will be used to cut, bolt, weld and fasten steel. As with any active construction site, noise and odors may be generated in the area immediately surrounding the work.
    • Site Mobilization/Temporary Project Site Changes: Temporary changes will be made to the project site the week of October 29th to accommodate a hydraulic mobile crane that will be used to assemble the crawler crane. The crawler crane will assemble the tower cranes and stay on site to perform other steel work.
    • The temporary hydraulic crane will be located on the eastern side of the construction site along Mercer Street midway between Bleecker Street and Houston Street.
    • Crawler crane assembly is expected to take approximately 3 weeks. The temporary hydraulic crane is expected to be onsite from the week of October 29th to mid-November, weather and site conditions permitting.
    • Per the DOB and DOT, to safely operate the temporary hydraulic crane and ensure the safe travel of vehicles and pedestrians around the project site, additional space will be needed on the eastern periphery of the construction site, along Mercer Street.
    • This space will be accommodated by temporarily extending a portion of the construction fence (see site map) into the existing southbound vehicular traffic lane on Mercer Street.
    • This temporary extension will require the suspension of parking on this portion of the eastern side of Mercer Street, which will become the temporary vehicular traffic lane. The eastern sidewalk of Mercer Street between Bleecker and Houston Streets will remain open for pedestrian traffic, and flag-people will be onsite to direct pedestrian and vehicular traffic.
    • There will be a need for approximately 3 days of intermittent street closures, scheduled between the hours of 10AM-2PM, on Mercer Street between Bleecker Street and Houston Street in order to facilitate the delivery and safe assembly of oversized crane equipment. The intermittent closure is expected to take approximately 30 minutes to 1-hour during the 3 days, and advanced notice will be given regarding the schedule. Emergency vehicles will be allowed access onto Mercer Street during this time. This work is weather and site conditions permitting.
    • In addition, DOT will dictate the hours of the deliveries for the overweight loads of the tractor trailers delivering materials to the site. Typically, DOT stipulates drop off's and pick up of oversize loads to be scheduled to take place as early as 4:00am to enable delivery trucks to leave the City before 6:00am. Following an early morning equipment pick up, the construction site will remain closed until the start of normal work hours at 8:00 am.
    • Additional changes around the project site will include the removal of 40 feet of parking both on the north and south side of Bleecker Street (approximately 2 parking spots), just off the eastern corner of Mercer Street. This space will be essential to enable trucks delivering steel and the facade to maneuver into and out of the construction site as well as for vehicular and pedestrian safety.
    • As the Core and Shell phase progresses, additional hydraulic mobile cranes may be on site from time to time for crane assembly as needed, resulting in temporary site changes. Potential temporary site changes may be expected in Spring 2019, Summer/Fall 2019, and Fall 2020. Neighbors will be given advance notice of site changes.
    • During the final fit-out phase, the building is enclosed and interior construction is underway. The landscaping of the Greene Street Walk will also occur during this phase. The project is scheduled to be completed in late 2021.

Current Project Update

November 12, 2018

Dust monitoring report for week of November 5 through November 9. 

Upcoming Work

  • In the coming weeks, Con Edison is scheduled to perform utility work on Houston Street between Mercer and Greene Streets, and within the construction fence on the Houston Street side of the project site. In addition, Con Edison is scheduled to perform utility work on Bleecker Street outside the project fence. 
    • Please note, Con Edison dictates their own work days and hours and may perform weekend work as needed.
  • An oversize piece of equipment is scheduled to be removed from the construction site the week of November 12. 
    • Due to the size of the equipment and per the NYC Department of Transportation (DOT), pick up of oversize loads are scheduled to take place as early as 4:00am to enable delivery trucks to leave the City before 6:00am. Following an early morning equipment pick up, the construction site will remain closed until the start of normal work hours at 8:00 am. The equipment is scheduled to exit the site via the Bleecker Street gate.

Ongoing Work

  • Foundation work continues on site and is scheduled to continue through late 2018.
    • Capping of the building's structural caissons continues onsite.
    • The pouring of concrete slab and walls continues onsite intermittently. 
      • Once the concrete arrives and is poured, concrete setting and finishing follows. Once concrete is poured, the team must wait for it to set completely before it can be finished as it is not possible to revisit concrete after it sets. Given that trucks can be delayed by weather or traffic, trucks are to arrive to the site by the early afternoon to avoid scenarios where work may go beyond our scheduled work hours. In cases, largely driven by traffic or weather conditions, work hours may be need to be extended to allow for the concrete to finish setting and subsequent finishing to take place, but again we are working to avoid this from occurring. The finishing work is performed with electric finishers that help mitigate noise.
  • Supportive excavation work is scheduled to continue on a small portion of the north and south side of the site on Greene Street. This will require the use of a drill rig. 
  • Work to address pre-existing street settlement issues within the eastern side of the construction site along Mercer Street is partially complete. Contractors are scheduled to resume this work at a later date.

Previous Project Updates

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