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ICRI 2003 Project Award Winner
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Honorable Mention: Parking Structures Category

Denver International Airport Level 5 Moisture Protection
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Denver, Colorado

Submitted by Walker Parking Consultants

Denver Airport Parking

Denver International Airport
Denver, Colorado

Project Engineer/

Walker Parking Consultants
Greenwood Village, Colorado

Repair Contractor
John Rohrer Contracting Company, Inc.
Kansas City, Kansas

Material Suppliers
Procoat Systems, Inc.
Denver, Colorado

The Denver International Airport has structured parking for more than 15,000 cars in six separate modules. Built in 1992 and 1993, the structures are precast, prestressed concrete construction with pre-topped, double-tee assemblies with over 5,500,000 square feet (511,000 square meter) of supported surface area. Over 628,000 square feet (58,000 square meter) of microsilica concrete pour strips were placed above column lines and other structural members. Over 150 miles (240 km) of sealant was installed in control joints.

Several years after construction, the structures were experiencing varying degrees of leakage, leaching, ponding of water, corrosion, and other problems at the tee-to-tee joints and pour strips. These were the contributing factors that were causing increasing deterioration of sealants and concrete damage, which was raising considerable concern for long-term durability of the facility. Most parking facilities can easily accommodate planned phasing of investigation, design and repairs. Due to the size and full-time use of the parking structures at DIA, the airport faced potentially significant revenue loss during the restoration process. 

A comprehensive design and restoration of the top levels of the facility were completed that incorporated all of the latest technology. It required coordination of the airport management, engineering, and parking operators, along with the consulting engineering firm and the successful restoration general contractor. Through a substantial team effort, the project was investigated, designed, constructed and managed to least impact the facility operators, the parking manager and the general traveling public.

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