Manhattan Bridge Entry
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Granite Conservation Testing and Quality Control

ICR conducted a survey and laboratory and in situ testing to design a conservation program for the granite. Quality control was conducted during implementation.

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Granite Conservation Testing and Quality Control

  Preliminary conditions survey

  Development of photographic conditions glossary

  Design & execution of laboratory & in-situ testing programs

  Development of non-destructive cleaning methods

  Development of conservation repair methods & materials

  Implementation of cleaning & repair mock-ups

  Select contractor training in conservation repairs techniques

  Quality control of conservation scope of work


As materials conservators, our team was given the assignment of preserving the architectural and sculptural elements of the monumental Hallowell granite entry to the Manhattan Bridge.  In this capacity, ICR created a testing program to supply the data needed to develop step-by-step specifications for conservation.  During construction, ICR and ICC monitored the work to ensure that the quality of the work specified in the design phase would be upheld and realized in an efficient manner.  ICR’s work was approved by both the New York City Landmarks Commission and the New York City Arts Commission.