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Montgomery County

Dayton, Ohio

Originally constructed in 1970, the Montgomery County Administration parking structure consists of cast-in-place concrete, and conventionally reinforced, short-span construction. The three below-grade parking levels are directly beneath the County Administration Building and supported landscaped plaza area. The parking levels were severely damaged by corrosion, with 26 percent of the supported slab delaminated. Significant leaking was occurring through 3,000 linear feet of failed sealants.

The restoration was sequenced to maintain safe Montgomery County office business. Parking operations were maintained at 75 percent of the total capacity. Deteriorated and spalled concreate areas were repaired via concrete patching. A cathodic protection system was installed on the deck surfaces to halt the corrosion process, and a bonded concrete overlay was placed on top of the cathodic protection system throughout the parking levels.