Complex sentence: The first section was a connection between MD 295 and the airport marked as MD 46 completed in 1951 shortly after the opening of the airport, which was originally named Friendship International Airport.
Split into simpler sentences: The first section was a connection between MD 295 and the airport. This segment was built as MD 46 and completed in 1951 shortly after the opening of the airport, which was originally named Friendship International Airport.