Structure in General
- The adjacent sidewalks are extensively landscaped, with 3 fountains on Franklin Street and large granite planters on Madison.
- One North Wacker was renamed in mid-construction when the Swiss bank UBS AG/Brinson Partners Inc. leased 451,395 ft².
- Topped out on April 10, 2001.
- A 40' ultra-transparent wall encloses the lobby with 5'x5' glass panes hanging on a web of cables and medallions. This is the first use of such a system in the U.S.
- During construction the metal surfaces of the facade were sealed for protection with a cobalt-blue film, which was peeled off upon completion.
- The glass panels used in the lobby have a surface reflectivity of less than 1%, in contrast to normal glass which has a reflectivity of about 7%. This allows more light into the building even when the sky is overcast.
- The pre-stressed cable system holding the glass panels of the lobby in place has been tested at suction pressures exceeding 150 psf, equivalent to a wind speed of 250 mph.
- The building's east profile is staggered, with setbacks at floors 19 and 34 corresponding with the heights of the elevator banks.
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Also recorded for this building:
landscape architect, general contractor, structural engineering, concrete supplier, acoustics consultant, glass supplier, window supplier, facade consultant, wind surveyor, facade supplier, developer, owner, elevator supplier, property management, geotechnical engineering, MEP engineering, crane rental