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Interstate 685 (Alabama)

Interstate 685 marker

Interstate 685
Route information
Maintained by ALDOT
Major junctions
West end: I‑65
  US 80
East end: Future plate blue.svgNo image wide.svg
I‑85 / US 80
Location
Counties: Montgomery
Highway system
SR 604 I‑759

Interstate 685 marker

Interstate 685 (I-685), is the designation for a future Interstate Highway in the U.S. state of Alabama. When completed, it will connect I-65 in downtown Montgomery to I-85 in the eastern suburbs of Montgomery. The routing is currently signed as I-85.

Currently, I-685 has been approved by the American Association of State Highway and Transportation Officials (AASHTO) to be co-signed with the current I-85 from its current southern terminus at I-65, to the future location of the Montgomery South Bypass on which I-85 will be rerouted.

The designation was approved in 2010 at the request of the Alabama Department of Transportation (ALDOT) to use existing I-85. Construction on the Montgomery Outer Loop started in early 2011, and the first part of it was completed in February 2016. When done, the I-85 designation will be shifted to the Outer Loop, and the existing freeway will become just I-685. This will be the first auxiliary interstate of interstate 85 that starts with a six.

The entire route is in Montgomery, Montgomery County.

All exits are opened as I-85, but are not signed as I-685


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