U.S. Route 129 in Tennessee

U.S. Route 129
US 129 highlighted in red
Route information
Maintained by TDOT
Length	52.8 mi[1] (85.0 km)
Existed	1934–present
Major junctions
South end	US 129 at the NC line at Deals Gap, NC
Major intersections	US 411 in Maryville US 321 in Maryville I-140 / SR 162 in Alcoa US 11 / US 70 in Knoxville
North end	I-40 in Knoxville
Location
Country	United States
State	Tennessee
Counties	Blount, Monroe, Knox
Highway system
United States Numbered Highway System List Special Divided Tennessee State Routes Interstate US State
← SR 114 SR 115 → SR 116 ← SR 128 US 129 → SR 129

U.S. Route 129 (US 129) is a north–south United States highway that runs for 52.8 miles (85.0 km) in East Tennessee, from the North Carolina state line, near Tapoco, to Knoxville. In Tennessee, the highway is completely overlapped by unsigned (except for mileposts) State Route 115 (SR 115). In the Greater Knoxville area, US 129 serves as a six-lane controlled-access highway known as Alcoa Highway.