ICRI 2010 Project Award Winner
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Award of Excellence: Parking Structures Category

Detroit Metropolitan Airport Blue Deck Parking Structure Restoration
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Romulus, Michigan

Submitted by Carl Walker, Inc.


Detroit Metropolitan Airport Blue Deck Parking

Owner
Wayne County 
Airport Authority
Detroit, Michigan

Project Engineer/
Designer

Carl Walker, Inc.
Kalamazoo, Michigan

Repair Contractor
RAM Construction (formerly Western Waterproofing)
Livonia, Michigan

Material Suppliers/
Manufacturers

Neogard
Willowbrook, Illinois

BASF
Charlotte, North Carolina

The Blue Deck Parking Structure provides parking for 5500 cars at the Detroit Metropolitan Wayne County Airport. The structure was constructed in two phases: the six-story East Deck in 1992 and the four-story West Deck/Flyover in 1993. The East Deck has its own internal traffic flow and ramping system. The West Deck/Flyover has speed access lanes, providing parking to all four supported levels and to the six levels of the East Deck. 

By early 2000, the parking structure exhibited serious wear and tear, with concentrated damage on the roof level. Shear wall and double tee flange connector failures, expansion joint leaking, and premature deterioration of tee surfaces were the main items that needed work. Rooftop drain basins and flange joints also exhibited wholesale sealant failure and leaking to the floor below. 

The restoration project included 170,000 square feet (15,793.5 square meters) of bonded concrete overlay and 190,000 square feet (17,651.5 square meters) of deck coating along with 21,000 ft (6400.8 m) of new joint sealant. The design focused on performing the necessary refitting of original connectors and the addition of supplemental reinforcing steel throughout the structure for capacity improvements. Localized failures of existing connectors required refitting and supplanting with additional reinforcing. The design detailing was performed to integrate these procedures into the overlay installation. 

A unique feature of this project included the use of latex-modified concrete to provide a very durable overlay with excellent bond characteristics. Another unique design feature was the replacement of the existing drain system with a more robust and durable system cast into a stiffened concrete section. 

Because of the high level of activity at the airport, it was necessary to accom­modate continuous parking on all floors. The restoration was completed in three phases, and zones were identified throughout the structure, capturing 750 cars per zone and allowing 4750 available spaces.

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