Will the interstate highway system be the last major public works project to be built in the United States, or should we re-start the Cross Florida Barge Canal or the Big Cypress Swamp Jetport? I first learned about these two ambitious but ill-fated Florida public works projects in one of the books I was reading this summer: Drying Up: The Fresh Water Crisis in Florida (University Press of Florida, 2019) by John M. Dunn. The Cross Florida Canal would have connected the Gulf of Mexico and the Atlantic Ocean, while the Big Cypress Jetport would have been the largest and most modern airport in the world, capable of handling supersonic aircraft. Alas, both projects were eventually cancelled due to their environmental impacts. In any case, I finally found a map of the proposed canal and am posting it here.