Commerce, tourism, recreation, and even the quest for eternal youth were the primary incentives for building piers along St. Petersburg's downtown waterfront as early as 1854. For more than 160 years, developers and entrepreneurs pushed wooden or concrete structures from the shoreline to the deeper waters of Tampa Bay. Railroads were behind the early development, allowing cargo loads to be transferred from ship to rail with the least amount of effort. A large and profitable fishing industry evolved. Electrically powered trolley cars shuttled tourists to and from cruise ships. Promoters built...