Complex sentence: The Gandy Bridge spans Tampa Bay from St. Petersburg, Florida to Tampa, Florida was devised and constructed by George Gandy, a Philidelphia contractor who had also built a theatre in St. Petersburg.
Split into simpler sentences: The Gandy Bridge spans Tampa Bay from St. Petersburg, Florida to Tampa, Florida. It was devised and constructed by George Gandy, a Philidelphia contractor who had also built a theatre in St. Petersburg.