|Maintained by TDOT|
|Length:||1.97 mi (3.17 km)|
|Existed:||1960 – present|
|South end:||I‑24 in Chattanooga|
|North end:||US 27 in Chattanooga|
Interstate 124 (I-124) is an unsigned designation for a short segment of a four-lane limited-access highway located in Chattanooga, Tennessee. During periods where this 2-mile (3.2 km) long segment of U.S. Route 27 (US 27) has been signed as I-124, it has served as a spur route of I-24 to downtown Chattanooga. The road segment has not been signed as I-124 for several years[when?] (it is marked on overhead signs and mile markers as US 27), and the Tennessee Department of Transportation official map no longer designates it as I-124, but some DOT publications still make reference to the designation.
The US 27 freeway diverges from I-24 just before the Moccasin Bend in the Tennessee River, continues north through downtown Chattanooga, and then across the Tennessee River as a limited-access freeway on the P. R. Olgiati Bridge. The river is the point at which the I-124 designation ended. After crossing the river, the freeway continues under the US 27 designation for another 30 miles (48 km) (beyond which the spur continues under the Tennessee State Route 111 designation for a further 20 miles (32 km)).
|This section is empty. You can help by adding to it. (March 2012)|
|0.0||0.0||I‑24 – Nashville, Birmingham, Atlanta, Knoxville||Southbound exit and northbound entrance|
|0.5||0.8||1||W Main Street||Partial interchange consisting of an exit from the northbound lanes and entrance to the southbound lanes|
|0.7||1.1||1A/1B||Martin Luther King Boulevard – Downtown||Signed as Exit 1A from the northbound lanes and Exit 1B from the southbound lanes|
|1.2||1.9||1C||SR 58 north (4th Street) – Downtown||TN-58 only signed from the southbound lanes|
|1.7||2.7||US 27 north – Northside Chattanooga||I-124 designation terminates at the Tennessee River, on the P. R. Olgiati Bridge|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi
- DeSimone, Tony (April 6, 2011). "Table 2: Auxiliary Routes of the Dwight D. Eisenhower National System Of Interstate and Defense Highways as of October 31, 2002". FHWA Route Log and Finder List. Federal Highway Administration. Retrieved March 4, 2010.
- Staff (May 1, 2007). "Fiscal Years 2008-2010 Transportation Improvement Program". Tennessee Department of Transportation. Retrieved March 4, 2012.
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