I've driven across the Lake Ponchartrain Causeway a couple times. I didn't recall it was that long. I've also driven the overseas highway many times. I don't k

I've driven across the Lake Ponchartrain Causeway a couple times. I didn't recall it was that long. I've also driven the overseas highway many times. I don't know if there's any truth to it, but I've heard claims that the original Seven Mile Bridge which was built on railroad trestles and was therefor very narrow had fewer fatalities than the modern bridge that replaced it. The idea was that on the old narrow bridge, drivers obeyed the speed limit and paid much better attention than on the modern wider bridge which lulled drivers into being less careful.