Lake Pontchartrain Causeway

Get ready to be amazed by the Lake Pontchartrain Causeway! It's not just one bridge, but two super-long bridges that go side-by-side across a huge lake in Louisiana. It's so long that it holds a special world record for being the longest continuous road over water. Think about driving for a really, really long time without seeing land – that's what it's like!

The longest part of the Causeway is almost 24 miles long! That's longer than 100 football fields stacked end-to-end. If you were to walk it, it would take you many hours. It connects two towns, Metairie and Mandeville, and helps people travel easily across the big lake.

How does a road stay up over so much water? The Causeway is built on thousands of concrete legs, called pilings. There are about 9,500 of them holding up both bridges! Imagine a giant's legs holding up a super-long playground slide – that's kind of what it’s like, but much, much bigger and stronger.

Even though it's a long road, boats still need to get through the lake! So, there's a special part of the bridge that can lift up, like a drawbridge. This part is about 8 miles from the north side of the lake. It makes sure boats can sail by without the road getting in their way.