Alabama State Route 53

For most of its length, State Route 53 is the unsigned designation of U.S. Route 231. This article is about the standalone sections of SR-53.

State Route 53
Route information
Maintained by ALDOT
Length:	345.287 mi (555.686 km) Most of length signed as US-231
Southern standalone section
Length:	20.137 mi (32.407 km)
South end:	SR 71 towards Mariana, Fla.
North end:	US-231 at Dothan
Northern standalone section
Length:	28.423 mi (45.742 km)
South end:	US-231 / US-431 in Huntsville
Major junctions:	I-565 in Huntsville
North end:	I-65 / US-31 near Ardmore
Location
Counties:	Houston, Dale, Pike, Montgomery, Elmore, Coosa, Talladega, Shelby, St. Clair, Blount, Cullman, Marshall, Morgan, Madison, Limestone
Highway system
Alabama State Routes ← SR-52 SR-54 → ← SR-229 SR-233 →

State Route 53 (SR-53) is a 345-mile (555 km) state highway in the U.S. state of Alabama. The majority, between Dothan and Huntsville, is signed as U.S. Highway 231 (US-231), but the two ends - south to Florida and north to I-65/US-31 near Tennessee - are independent. In those areas, US-231 uses State Route 1, sharing the route with US-431 north of Huntsville, where it is referred to as Memorial Parkway.

Major intersections

Beginning at its southern terminus, SR-53 assumes a slight northwestwardly trajectory as it passes through Dothan, where it joins U.S. Route 231, heading towards Montgomery. Between Dothan and Huntsville, SR-53 is the unsigned partner to US-231.

SR-53, coming in from the upper left, follows the Tennessee state line at Ardmore

At Huntsville, SR-53 diverts from US-231 and once again becomes a signed route until it reaches its terminus just west of Ardmore at Interstate 65/U.S. Highway 31 crossing several major roads along the way including University and Sparkman Drives in Huntsville. The northbound lane of SR-53 actually enters Tennessee before going south to I-65. Tennessee State Route 7 runs concurrently with the route on the state line and both Alabama and Tennessee mile markers are present on the highway.

Major intersections

County	Location	Mile	Destinations	Notes
Houston		0.000	SR 71 south	Continuation into Florida
	Dothan	18.639	SR-210
		20.137	US-231 south (SR-1)	South end of US-231 overlap
SR-53 is the unsigned designation for US-231 for the next 296.727 miles (477.536 km)
Madison	Huntsville	316.864	US-231 north / US-431 (SR-1) Governors Drive	North end of US-231 overlap
		318.548	I-565 / US-72 Alt.
		319.915	US-72 (SR-2 / University Drive)
		324.449	SR-255
Limestone	Ardmore	342.878	SR-251 south SR-7 north
		345.287	I-65 / US-31
1.000 mi = 1.609 km; 1.000 km = 0.621 mi      Concurrency terminus •      Closed/former •      Incomplete access •      Unopened