Masonry Magazine October 1987 Page. 33
About Our Cover
123 North Wacker Drive
maso P
MAYCO
THE #1 SELLING
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18 Years of
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One of the more striking new structures in downtown Chicago is the new 123 North Wacker Drive Building. Designed by Perkins & Will the building recently won a Silver Medal in the Chicagoland Excellence in Masonry Annual Awards Program.
This 34-story structure utilizes 178,000 square feet of 3 cm granite to enclose its frame. A darker Biritiba granite is used on the lower levels with a soft Sardo Pink as the field color on the upper floors. Mason Contractors on the project were Thorleif Larsen & Son, the exterior granite installer, with Continental Marble & Granite doing the interior work.
The judges for the Chicago Awards commented: "The lobby and lower floor of this building are exciting and bear a friendly welcome. The building is voluptuous, almost overwhelming. In terms of rich marble and a warmth of stone, it has a compelling quality; it has been handled extremely well, with geometric shapes on each facade."
The unique aluminum grid system, which integrated into the curtain wall unit, is similar to the strong-back system in wide use today. The 178,000 sq. ft. of granite was transposed into 15,000 panels.
The project manager for the Larsen firm was Donald Kamps with Mike Abdul, Max Bucher and Greg Gilbeau the foremen. The average number of men on the project during construction was 25 for the exterior granite installer. Schal Construction was the General Contractor.
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MASONRY-SEPTEMBER/OCTOBER, 1987 33