Monroe County Airport Director Bruce Payton says the excavation caused by three sinkholes could fit almost three Assembly Hall sized buildings inside of it.
Indiana airports are finding ways to deal with the economic changes that impact their business.
Some Indiana control towers will be closing due to pre-sequester cuts.
In the face of budget cuts, smaller airports may lose their 24 hour control towers.
Over the next two decades, the FAA says traffic will double, but some airports are most conservative with their growth estimates.