Kresge Auditorium

Kresge Auditorium is an auditorium building for the Massachusetts Institute of Technology, located at 48 Massachusetts Avenue, Cambridge, Massachusetts. It was designed by the noted architect Eero Saarinen, with ground-breaking in 1953 and dedication in 1955. The building was named for its principal funder, Sebastian S. Kresge, founder of S. S. Kresge Stores (corporate predecessor of Kmart) and the Kresge Foundation.

Saarinen designed Kresge Auditorium in tandem with his MIT Chapel; the two buildings are separated by a "green," referred to by students as the "Kresge Oval." The ensemble is recognized as one of the best examples of mid-Century modern architecture in the US.

Though unassuming by today's standards, the buildings were part of an attempt to define MIT's social cohesion. The Auditorium was where MIT students and faculty could gather for formal events, the Chapel was intended for marriages and memorials; the green that stretches between the two buildings, in the tradition of early-American urban planning, was to serve as the setting for civic events. Though the campus has grown around the buildings, the essential features of this idea are still easily legible, and the original intentions are reflected in the everyday actual usage of these spaces.

The auditorium is defined by an elegant thin-shell structure of reinforced concrete, one-eighth of a sphere rising to a height of 50 feet, and sliced away by sheer glass curtain walls so that it comes to earth on only three points. Thin-shelled concrete technology was innovative for the times. The dome weighs only 1200 tons and is currently clad with copper. It was originally covered with smooth, bright, orastone which was then replaced with lead sheeting attached with stainless steel wires. The dome was originally supported only at the three corners, In 1980, cracks were found in the structure and the auditorium was closed immediately for repairs. Copper replaced the lead at that time and the walls now carry part of the roof load.

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