Alabama State Route 79
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| Route information | ||||
| Maintained by ALDOT | ||||
| Length: | 117 mi (188 km) | |||
| Major junctions | ||||
| South end: |
  I‑20 / I‑59 at Birmingham
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 US 231 at Cleveland US 278 west of Snead US 431 at Guntersville SR 69 at Guntersville US 72 at Scottsboro
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| North end: |
 SR 16
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| Location | ||||
| Counties: | Jefferson, Blount, Marshall, Jackson | |||
| Highway system | ||||
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State Route 79 (SR 79) is a 117-mile-long (188 km) state highway that extends northeastward from Birmingham to the Tennessee state line. Prior to the completion of Interstate 65 (I-65), SR 79 was the southern part of the route that connected Birmingham and Huntsville.
The southern terminus of SR 79 is at an interchange of Tallapoosa Street with I-20/I-59 (exit 128) near Birmingham–Shuttlesworth International Airport. Prior to the completion of I-20/I-59, the terminus of SR 79 was at an intersection with US 31, US 78, and US 280 at the intersection of 8th Avenue North and 24th Street in downtown Birmingham.
The highway is four-laned from I-20/I-59 to a gap in Sand Mountain, where it travels under two Alabama Power transmission lines, one coming from the Miller Steam Plant. After leaving Tarrant, there is little retail development along SR 79 in Jefferson County.
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