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801 Grand

801 Grand Avenue
Des Moines, Polk County, Iowa, 50309

801 Grand in Des Moines, Iowa
Photo: Richc80 License: CC BY-SA 2.5
801 Grand, is a 45 story skyscraper in Des Moines, Iowa, named after its street address along Grand Avenue in the downtown area. It is the tallest building in the state of Iowa.
The building is primarily office space. The lower three floors contain retail and restaurant space.

801 Grand's roof is covered with copper sheeting that was designed to form a green coating of verdigris over time, much like the Statue of Liberty. However, unlike New York City, the air salt content in Des Moines was so low that the desired oxidation process failed. The copper turned a dark brown instead. Discussions on possible removal of the top layer of copper to allow crews to restart the oxidation process to create verdigris resulted in the decision to leave the roof as it is.

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