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Four Seasons Modernization

Four Seasons Modernization

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Turner Construction Company

66 Hudson Boulevard East

New York, NY 10001

(212) 229-6000

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Project overview

Business Unit(s)


Year Completed



Regional Industrial Development Corporation

Client Industry


Scope of Work

New Construction, Repositioning


96,450 sq. ft.


MSR Design

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Mill 19 at Hazelwood Green

Pittsburgh’s Transformation from Steel City to Robotics City

This project is an adaptive re-use of Mill 19 at the former LTV Steel brownfield site into a build-to-suit facility for Carnegie Mellon University and other tech tenants. This project is part of the 178-acre Hazelwood Green Development. Early in the preconstruction process, Turner assisted in evaluating system types and methods to approach the existing structure and demolition. Our scope of work consisted of selective demolition of the existing building with new utility services, site hardscaping, landscaping, and civil work both inside and outside of the existing mill’s steel frame to make way for the core and shell.

Phase A consisted of a three story, 96,450 gross sq. ft. building built under the existing steel shell of the old mill building. The building’s facade is comprised of metal panels and an aluminum curtainwall system. The structure has four exterior stairs that project out from the new building and tie into the existing building.

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  • AIA COTE Top Ten Award
  • AIA Minnesota Commendation for Excellence in Design for Change
  • Urban Land Institute (ULI) Pittsburgh Placemaking Award for Excellence as a Visionary Place
  • NAIOP Pittsburgh Green Building Award
  • ENR MidAtlantic Best Project in Office/Retail/Mixed-Use Category
  • The Architect's Newspaper Best of Design Award in the Landscape Category
  • Engineers' Society of Western Pennsylvania Project of the Year for Modernization
  • DEP Governor's Award for Environmental Excellence

Extensive site remediation

Extensive site remediation

The sitework included a complete structural soil exchange under the new building footprint and utility work for Building A along with infrastructure for the future buildings. Remediation of the site included removal of existing asbestos containing panels, lead abatement, and removal of years of soot build up. Turner managed the EH&S permit for the site along with the environmental recommendations that included base line testing, monitoring of workers, increased PPE including respirators, decontamination trailer, and hiring a full time industrial hygienist to ensure the safety of the tradespeople.