Grand Rapids Office Building Parking Garage and Plaza

 The parking structure and plaza topping were in poor condition due to corrosion damage from deicing salts. Slabs, beams and columns were spalled from corrosion damage. The restoration included: 

• Complete removal and replacement of the supported parking slabs, the plaza topping and drainage system, mechanical lines, and lighting 
• Slabs were completely redesigned to improve slopes for drainage and to increase quality of the concrete, including adding corrosion inhibitors 
• Installation of an exposed-aggregate concrete topping at the plaza. Underneath the topping, a new hot-applied waterproofing membrane was installed along with a drainage layer to direct water out of the plaza areas 
• Installation of a ventilation system with heated makeup air for temperature control 
• Installation of new signage and mechanical system 
• Deck coating, painting, and landscaping 

 Project Highlights

• Removal/replacement of supported slab & plaza 
• Hot-applied waterproofing membrane 
• New lighting