Pulteney Bridge in Bath, England, was built in 1774. It's one of only four bridges in the world to have shops across the full span on both sides according to wikipedia. It's form was altered within 20 years of opening, being widened and enlarging the shops. Shortly after it was damaged by flooding and debate over it's rebuilding raged between the modernists and the classicists. The classicists won and it was rebuilt somewhat less ambitiously but more in keeping with the original design.
Pulteney Bridge, Bath, England.
