In 1937, Glen Martin proposed height restrictions around the airport because a new generation of large, heavy transports would be flying from its seaplane base.The company attempted to sell the property to the City of Baltimore for $1 million, but the commissioner Robert O'Boneell said there was insufficient room for expansion.The company formed a real-estate arm, Chesapeake Park Inc., with the former Baltimore County Council Chair Herry J. Bartenfelder to build residential and commercial real estate.[5] In the 1990s the airport was targeted as part of the Middle River Employment Center district to have MD route 43 highway extended from I-95 direct to the terminal through a series of wetland parcels.[1] For the 12-month period ending October 11, 2022, the airport had 87,130 aircraft operations, an average of 239 per day: 94% general aviation, 2% military, and 3% air taxi.