Rogers, Minn.-based Veit & Co. Inc. is deconstructing one of Northwestern Mutual Life Insurance Co.’s downtown Milwaukee office buildings to make way for a 32-story tower.
Pete Salamoun, project manager and estimator for Veit, said he expects the deconstruction project to shift from the top-down approach, which involves using a tower crane to move debris and equipment, to a horizontal one, which will allow crews to work from the ground level. That shift is expected to happen June 2, and the deconstruction is expected to be finished by the end of August.
Milwaukee-based C.G. Schmidt Inc. and Providence, R.I.-based Gilbane Building Co. are partnering as general contractors for the 1.1-million-square-foot tower and attached common space that will replace the deconstructed building. The project is expected to cost $450 million and be finished by the end of 2017.
I checked in on the deconstruction on Friday, and here are some numbers illustrating high points of the project:
- 75, percentage of construction materials Veit hopes to recycle from the deconstructed building
- 53, tons of carpeting pulled out of the old building
- 2,000, the number of windows (at least) that were removed from the old building
- 5,000, the number of pieces of granite (at least) that were removed from the old building and that are expected to be re-used as backfill or roadbed for other projects
- 20,000, pieces of scaffolding erected at the beginning of the deconstruction
- 16, number of bays, a section within support columns, that will be deconstructed horizontally
- 19 million, pounds of steel taken out of the old building
- 235, height of the site’s tower crane, in feet
- 4, number of days a crew needed, at the project’s peak speed, to deconstruct one floor of the building
- 42, number of workers on site when work was at its peak speed
- 10-15, number of workers expected to be on site after the switch to horizontal deconstruction
Thanks to Scott Wollenzien, facility manager for Northwestern Mutual, for having all these numbers at the tip of his fingers even while in the middle of a construction site.