Street
twinspan
What does twinspan mean?
The pair of parallel bridges that carry I-10 across the eastern end of Lake Pontchartrain between New Orleans East and Slidell — about five miles of open water. Got famous nationally when Katrina's surge ripped huge chunks of the original spans clean off; the replacement opened in 2011, higher and tougher. Locals use 'the Twinspan' as a shorthand for the whole crossing and as a weather bellwether ('they're closing the Twinspan').
"We hit the Twinspan right at sunset coming back from the coast — water like glass on both sides."
Frequently asked questions
What is the Twinspan?
The Twinspan is the twin bridges carrying I-10 across Lake Pontchartrain to Slidell.
Where is the Twinspan located?
It crosses Lake Pontchartrain in Louisiana, carrying Interstate 10 toward Slidell.
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