Why Alligator Alley Looks So Straight
Florida’s I-75 crosses a broad stretch of the Everglades known as Alligator Alley. The landscape is unusually flat and open: instead of hills, towns, or dense forest forcing frequent bends, the road runs for long distances across marsh and wet prairie. From a car, the horizon can seem nearly unbroken, making the highway feel like a line drawn across the swamp.
That straightness is practical as well as striking. A direct route links South Florida’s Gulf and Atlantic sides, while the level terrain leaves engineers fewer natural obstacles to route around. The road still has curves and raised sections, but the surrounding wetland makes its long, nearly straight stretches especially noticeable.
A Road Built Through Moving Water
A swamp is not empty land waiting for pavement. Water flows across the Everglades in shallow, seasonal sheets, and a solid roadbed can interrupt that movement. The highway therefore has to be designed around drainage, with water able to pass beneath or around the roadway rather than being cut off on one side.
The marsh also shapes what drivers see. Fences separate traffic from the surrounding habitat, while the low vegetation offers few visual landmarks. Reptiles, including alligators, may be visible near the shoulder, but the road is only one narrow strip through a much larger wetland. Its stark, straight profile is a reminder that this route depends on keeping water moving through the landscape it crosses.
