US 129, 19 and 23 in Tennessee
US 129 in Tennessee
According to act-test-centers, US 129 is a US Highway in the US state of Tennessee. The road forms a north-south connection in the east of the state, from the North Carolina border in the Great Smoky Mountains National Park to Interstate 40 in Knoxville. The route is 85 kilometers long.
The road starts at about 600 meters altitude in a mountainous and densely forested area. US 129 in North Carolina enters the state of Tennessee from Murphy here and then begins a challenging and very winding route north. It is mainly a tourist road, which leads through the Great Smoky Mountains National Park. One has a view over the Calderwood reservoir. After the national park, the road quickly flattens out and you reach a more open area with meadows. Just before Alcoa, US 129 merges with US 411, the main road from Atlanta. The road has 2×2 lanes around Alcoa and a few grade separated intersections near the airport. Then follows a cloverleaf with the Interstate 140, a short highway that leads to Interstate 40 at Farragut, convenient for traffic toward Nashville. After this, the road becomes an express road with largely grade-separated connections. Crossing the Tennessee River at Knoxville, then crossing SR-158, an east-west highway along the river. The road here is simply a freeway, and then ends at an interchange on Interstate 40, the highway from Nashville to Knoxville.
US 129 was one of the original US Highways of 1926, but at the time it ran entirely within the state of Georgia. In 1935, the northern terminus was changed from Cleveland, Georgia to Knoxville, Tennessee, creating the current route through Tennessee.
The route was later converted into a divided highway between Alcoa and Knoxville and is now one of Knoxville’s major approach roads. The northernmost section in Knoxville, between I-40 and the University of Tennessee Medical Center, is constructed as a 2×3 lane quasi freeway. The connecting road from US 129 to I-40 westbound had a very treacherous loop, this interchange was reconstructed in the early 2000s. Around 2002-2003, the highway between I-40 and the Tennessee River Bridge was widened from 2×2 to 2×3 lanes.
The US 129 bridge over the Tennessee River dates from 1933 but was later replaced by a wider 2×3 lane bridge, exact date unknown. South of Knoxville, the bridge over the Little River was replaced by a wider bridge in 2002-2003.
On May 7, 2019, a grade-separated junction with Maloney Road in southern Knoxville opened.
US 19 in Tennessee
|42 + 40 mi
|68 + 64 km
US 19 is a US Highway in the US state of Tennessee. The road forms a north-south route through the far east of the state, splitting in part into US19E and US 19W, which have a combined length of 132 kilometers.
US 19E comes from Spruce Pine in North Carolina and leads through the Appalachian Mountains, becoming a 2×2 lane divided highway from Hampton , passing through the town of Elizabethton. At Bluff City, the US 19E joins the US 19W.
US 19W comes from Asheville and merges into Interstate 26 in Tennessee after a few miles, then US 19, US 23 and I-26 run north to Johnson City, where US 19W splits off and merges with US 11E. At Bluff City, US 19W meets US 19E.
From Bluff City, the US 19 continues for 15 kilometers as a divided highway to Bristol on the border with Virginia. US 19 in Virginia then continues to Abingdon.
US 19 was created in 1926. US 19 was in two sections at the time, a northern section between Erie, Pennsylvania and Gauley Bridge, West Virginia and a southern section from Bluff City, Tennessee to Lawrenceville, Georgia. Both parts were connected into one route in 1927. In 1930, US 19 was split south of Bluff City, the original route became US 19E, and a new US 19W was added.
Much of US 19 has been upgraded to a 2×2 divided highway. The main route between Bristol and Bluff City is entirely 2×2 lanes, along with US 19W to Johnson City and US 19W to Elizabethton. In 1994, a new 2×2 divided highway between Elizabethton and Bluff City opened as a new route for US 19E. In the 1970s-80s, US 19W between Johnson City and Erwin was bypassed by Interstate 26. US 19W was then routed over I-26.
The southernmost portion of US 19W in the Appalachian Mountains follows a winding route, trucks are recommended to follow I-26 and not US 19W.
US 23 in Tennessee
According to Liuxers, US 23 is a US Highway in the US state of Tennessee. The road forms a north-south route through the east of the state. US 23 is completely double-numbered with Interstate 26 in Tennessee, but in the opposite direction from I-26. US 23 runs from south to north, I-26 from north to south. US 23 is 92 kilometers long in Tennessee.
US 23 was one of the original US Highways of 1926, but did not run through Tennessee at the time. This was the case from 1931, when the route was extended from Kentucky south to Atlanta.
I-26 was constructed as US 23 between Kingsport and Asheville in North Carolina in the 1960s to 1980s. The highway was developed as Corridor B of the Appalachian Development Highway System. As of August 5, 2003, Interstate 26 has been extended northward from Asheville through Johnson City and Kingsport to the Virginia border. The former I-181 between Johnson City and I-81 was cancelled.
12,500 vehicles drive daily between the Virginia border and Kingsport, rising to 40,000 vehicles before the I-81 interchange. 45,500 vehicles drive south of it, peaking at 54,000 vehicles in Johnson City. South of Johnson City, intensities drop to 21,000 vehicles for Erwin and 8,800 vehicles on the North Carolina border.