I thought this one made a good b&w shot.

The Acosta Bridge spans the St. Johns River in Jacksonville, Florida on a fixed span.
It was named for City Councilman St. Elmo W. Acosta. It carries SR 13 (six lanes) with
the two-track JTA Skyway in the median. Prior to its replacement in 1991, the bridge,
originally called St. Johns River Bridge, opened in 1921 and carried three lanes (center
one reversible) on a lift bridge. Tolls were charged until 1940, earning more than
$4 million for the City of Jacksonville.

Despite being a freeway, bicycles are permitted on the main lanes of the bridge. The Acosta
Bridge is also notable because of the purple neon lights that illuminate it at night.(Wikipedia)