Interstate 420 (Louisiana)

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Interstate 420 (abbreviated I-420) was to be a bypass of Monroe, Louisiana. Due to the slang meaning of the number 420, it is unlikely that number will be used for a real highway, particularly since "Interstate 420" shields have shown up on t-shirts.

Auxiliary routes of Interstate 20
Current and Future (F) Former
I-220 Louisiana - Mississippi
I-420 Georgia - Louisiana
I-520 Georgia-South Carolina
I-820 Texas
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