Alabama State Route 20

State Route 20 (SR 20) is a 73.978-mile-long (119.056 km) state highway in the northern part of the U.S. state of Alabama. It travels from the Tennessee state line, where it continues as Tennessee State Route 69, northwest of Florence, east to Interstate 65 (I-65), east of Decatur. It crosses the Tennessee River at Florence (with US 43, US 72, SR 17, and SR 157) and also at Decatur (with US 31 and US 72 Alt.)

State Route 20

Route information
Maintained by ALDOT
Length73.978 mi (119.056 km)
Major junctions
West end SR 69 northwest of Florence
Major intersections
  • Natchez Trace Parkway northwest of Florence
  • US 43 / US 72 / SR 13 / SR 17 at Florence

  •  US 72 Alt. / SR 157 at Muscle Shoals
  • SR 67 at Decatur
  • US 31 at Decatur
East end
 I-65 / I-565 / US 72 Alt. at Mooresville
Location
CountryUnited States
StateAlabama
CountiesLauderdale, Colbert, Lawrence, Morgan, Limestone
Highway system
  • Alabama State Highway System
  • Interstate
  • US
  • State
← I-20→ SR 21

US 72 Alt. follows SR 20 from the intersection with US 72 at Muscle Shoals to I-65 east of Decatur, the entire stretch being four-laned.

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