In 1993, construction started on what would be the Casco Bay Bridge, replacing the failing Million Dollar Bridge connecting Portland and South Portland. By 1997, the bridge was open to traffic. The final cost of the bridge was $130 million, according to the LA Times.

Several hundred cars a day use the Casco Bay Bridge, but not too many people have noticed what's under the bridge. Thanks to the YouTube page StoryWorld Studio, we can now get a closer look at Knightville Park.