The route number same as the exit number has been done before. Here's a new challenge. I-459 (AL) Exit 13 is for US 31. What are some other examples of "reverses" between exit number and route number? Please, no palindromes or single digits.
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I-64 in Shelby County.
As long as we're willing to ignore the "A" on this Exit 105, it would qualify, as it directs you to a US 501.
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Taken on US 15 and US 501 South in Durham, North Carolina.
Exit 104 on NC 87 is US 401 Business West.
I-95 Exit 244 is for FL 442.