Part of the taxi way and one runway of Allegheny County Airport in Pittsburgh, Pennsylvania is built on a bridge over PA Route 885 and two sets of railroad tracks .
Part of the taxi way and one runway of Allegheny County Airport in Pittsburgh, Pennsylvania is built on a bridge over Pennsylvania Route 885 and two sets of tracks of the Union Railroad (Pittsburgh) .
R
PA
Pennsylvania
R
railroad tracks
tracks of the Union Railroad (Pittsburgh)