500 Washington St., Columbus, Indiana. County/parish: Bartholomew.
Added to the National Register of Historic Places May 16, 2000. NRIS 00000704.
The Irwin Conference Center (formerly known as Irwin Union Bank) was designed by Eero Saarinen and built in 1954 in Columbus, Indiana, United States. The building consists of a one-story bank structure and adjacent three-story office annex. A portion of the office annex was built along with the banking hall in 1954. The remaining, much larger portion, designed by Kevin Roche, John Dinkeloo and Associates, was built in 1973.
The structure has changed ownership twice since 2008 and is now operated by Cummins, whose world headquarters is located across Jackson Street in the Cummins Corporate Office Building. The building is designated as a National Historic Landmark.
(read more...)National Park Service documentation: https://catalog.archives.gov/id/132002370