Reused over $100,000 worth of stones initially designated for replacement
Berglund Construction provided construction services for the restoration of the Chicago Federal Center Plaza. All elements of the Mies Van Der Rohe designed plaza align perfectly on a grid of over 5,200 4'-8" square granite pavers. The plaza restoration involved pulling all the pavers (each one weighing between 900 to 3,000 pounds), benches, planters, and bollards in order to repair, waterproof, and insulate the structural deck below.
Due to the historic significance of the plaza and the importance of putting each piece back exactly as it was prior to construction, Berglund enlisted the services of their historic preservationist to develop a set of historic treatment procedures for handling, cataloging, and storing the pavers prior to construction. These procedures ensured that all historic elements were properly handled, repaired, and returned to their original orientation.
Berglund video-taped the entire plaza prior to construction to document the existing condition of the historic elements. During construction, each stone was photographed and catalogued on removal, then numbered, and carefully stored on site in a designated storage area. Constant documentation of the stone removal process not only ensured organization in a logistically complicated process, it also allowed a larger portion of the historic fabric to be reused as over $100,000 worth of stones initially designated for replacement were de-scoped in favor of being repaired on site.
Berglund Construction’s historic deliverables provided detailed pre-construction video and photo documentation in addition to AutoCAD as-built drawings of the entire plaza, detailing every stone repaired, replaced, or re-sculpted. This was accompanied by a photo-database of each individual stone repair performed.