The Milwaukee County Parks closed the Mitchell Park Conservatory Domes closed the Arid Dome after the Parks Department discovered a piece of fallen concrete, according to a statement from the Parks Director John Dargle.

"After discovering a piece of fallen concrete at the Arid Dome, the Parks Department consulted with Risk Management and an independent engineering firm to determine the best course of action to ensure the safety of our employees and the public. Per their recommendation, we have temporarily closed the Arid Dome until further safety evaluations and planning can be completed."

There are three different climate domes. The floral and tropical domes are open.