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Interstate 44 has ten active business loops, all of which are in Missouri. The stretch of Old U.S. 66 between Oklahoma City and Joplin appears to be the most business loop-free portion left of the Mother Road. The entire route along Oklahoma, Kansas, and Missouri State Route 66 between these two cities is still intact.

| OKLAHOMA
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| Lawton
| Not a Business Loop |
This potential Interstate business route is actually signed as Business U.S. 277-281 via Fort Sill Boulevard and 2nd Street). There are no plans to make this into Business Loop I-44. |
| MISSOURI
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| Joplin
| Active |
This business route starts at Exit 6 and heads north via Main Street and Missouri 43. At 7th Street, the business route turns east via Missouri 66, which is old U.S. 66. The business route ends at Exit 15. See the photo below the table! |
| Sarcoxie
| Active |
This is old U.S. 166 between Exits 26 and 29. |
| Mount Vernon
| Active |
This is old U.S. 166 between Exits 43 and 46. |
| Springfield
| Active |
This business route leaves Interstate 44 at Exit 72. It follows Chestnut Expressway east to Glenstone Avenue, then turns north on Glenstone to rejoin Interstate 44 at Exit 80. Glenstone Avenue is old U.S. 65, but the Chestnut Expressway is not old U.S. 66. U.S. 66 used to follow College Street through Springfield. |
| Lebanon
| Active |
This business route follows Historic U.S. 66 between Exits 127 and 130. |
| Waynesville/Saint Robert
| Active |
This business route follows Historic U.S. 66 between Exits 156 and 161. A rarity in the business connection universe, Business Loop I-44 and Business Spur I-44 actually intersect in Saint Robert, and I believe they merge together to rejoin Interstate 44 at Exit 161. There is a sign picture at Mark Roberts' Missouri Highways Page that shows a confusing shield assembly with both Business Loop and Business Spur I-44. (For more, see notes for the business spur.) |
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