Portal:Maryland roads/Did you know/3

...that the bridge that carried Maryland Route 32 across the Patapsco River in Sykesville between 1963 and 2004 was the longest of only three aluminum triangular box beam girder bridges constructed in the United States?
... that much of the current alignment of Maryland Route 413 follows a former Pennsylvania Railroad line into Crisfield?
... that the Baltimore–Washington Parkway was once planned to be a part of Interstate 295, but never did because not enough funds were available to upgrade the road to Interstate Highway standards?