U.S. Route 31 (US 31) in Alabama runs north–south up through the heart of Alabama for 386.449 miles (621.929 km). US 31 proper begins at a junction with US 90 and US 98 in Spanish Fort and exits the state into Tennessee running concurrently with Interstate 65 (I-65) near Ardmore. US 31 enters the limits of major cities Montgomery, Birmingham, and Decatur. Throughout the state, with the exception of its concurrency with I-65 north of Athens, US 31 runs concurrently with the unsigned State Route 3 (SR 3). Today, aside from portions through major towns and cities, US 31 is largely a rural two-lane highway. The route has largely been supplanted by I-65, with which it has eight junctions and two concurrencies.
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In this Dossier
- ⭐ Core Definition: U.S. Route 31 in Alabama
- U.S. Route 31 in Alabama in the context of "Steamboat Bill" Hudson Memorial Bridge
- U.S. Route 31 in Alabama in the context of U.S. Highway 72 Alternate
- U.S. Route 31 in Alabama in the context of State Route 20 (Alabama)
U.S. Route 31 in Alabama in the context of "Steamboat Bill" Hudson Memorial Bridge
The Captain William J. Hudson "Steamboat Bill" Memorial Bridge is a twin bridge that spans one of the widest points along the Tennessee River within the city of Decatur, Alabama, between Morgan County and Limestone County. One is a cantilever truss, and the other is a reinforced concrete. The bridges carry US 31, US 72A, and State Route 20 from the intersection of Wilson Street (US 72A, and SR 20), and 6th Avenue (US 31) in northeast Decatur.
View the full Wikipedia page for "Steamboat Bill" Hudson Memorial BridgeU.S. Route 31 in Alabama in the context of U.S. Highway 72 Alternate
Alternate U.S. Route 72 (US 72 Alt.) exists in Alabama on the south side of the Tennessee River between Muscle Shoals and Decatur, while US 72 follows on the north side of the river between Florence and Athens. US 72 Alt. crosses the Tennessee River at Decatur, along with US 31, and follows the entire route of Interstate 565 (I-565). SR-20 was co-signed with US 72 Alt. from Muscle Shoals to Huntsville but has since been truncated to the junction of I-65 just east of Decatur.
Originally, US 72 Alt. turned off SR-20 on to SR-53 / Jordan Lane in Huntsville and followed it north one mile (1.6 km) to rejoin with US 72. With the completion of I-565 in the early 1990s, US 72 Alt. was routed along with I-565 to the termination of I-565 at US 72 at Chapman Mountain.
View the full Wikipedia page for U.S. Highway 72 AlternateU.S. Route 31 in Alabama in the context of State Route 20 (Alabama)
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.)
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.
View the full Wikipedia page for State Route 20 (Alabama)