DTW Nothern Portion Runway 4R-22L Reconstruction

Romulus, MI

The Detroit Metropolitan Airport is located in Wayne County, Michigan.  At over 11,000 feet in length, Runway 4R/22L is the longest runway at the airport and is crucial for the operation of heavy aircraft such as 747-400’s and DC-10’s that fly overseas routes.


Iafrate Construction was contracted by the Wayne County Airport Authority to complete the Northern Portion of the 4R/22L and Associated Taxiways Reconstruction.  Due to the importance of this runway to the overseas routes and the climatic restrictions at certain times of the year; the project was awarded based on the constructions taking place over two construction seasons (2012 and 2013).  Penalties for opening of the runway past the contract obligation date was $200,000.00 per day. 


Despite a number of unknown and unforeseen underground obstructions, the runway was opened to air traffic prior to the contractually obligated date in both of the construction seasons.

Fast Facts


Project Name:      4R/22L Reconstruction
Location:              Romulus, MI    
Owner/Client:       Wayne County Airport Authority
Engineer:             Michigan Aviation Partners

•    332,000 SYDS Concrete Removal
•    340,000 CYDS Earth Excavation
•    19,115 LFT Storm Sewer 12” to 72”
•    287,000 SYDS 17” Concrete Pavement 
•    Complete removal and renovation of runway           lighting and  MALSR / REIL systems