Landing System glide slope the next year. Over the course of the decade, there were four major purchases of new land at a total cost of US$3.8 million in grants and an unspecified amount in local funds. In addition, 6 new hangars were built. McCollum Field was first designed as a small field for general aviation. It is designated as a reliever airport for Hartsfield-Jackson Airport and DeKalb-Peachtree Airport. Cobb County is also the primary general aviation airport for the Atlanta suburban population. As of 2006, it is the third most trafficked airport in Georgia with an average of 475 takeoffs and landings each day. 2008 runway On December 4, 2008 the new by wide concrete runway was opened at 13:00 local time. The runway took 23 days to complete. During the runway construction of RWY "9-27" taxiway "A" was made temporary runway "8-26". References External links Cobb County Airport - McCollum Field Atlanta Executive Jet Center Preferred Jet Center Aero Atlanta Flight Center Airports in Georgia (U.S. state) Airports established in 1960 Buildings and structures in Cobb County, Georgia 1960 establishments in Georgia (U.S. state) Transportation in Cobb County, Georgia