U.S. Route 27 in Tennessee

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This article is about the section of U.S. Route 27 in Tennessee. For the entire route, see U.S. Route 27.

U.S. Route 27 marker

U.S. Route 27
Route information
Maintained by TDOT
Existed: 1926[citation needed] – present
Major junctions
South end: US 27 at the Georgia state line

I-24 / US 11 / US 41 / US 64 / US 76 in Chattanooga
US 127 in Red Bank
US 70 in Rockwood

I-40 in Harriman
North end: US 27 at the Kentucky state line
Counties: Hamilton, Rhea, Roane, Morgan, Scott
Highway system
SR 27 SR 28

U.S. Route 27 in Tennessee runs from the Georgia state line in Chattanooga to the Kentucky state line in Scott County.

Route description[edit]

US 27 at its intersection with SR 303, near Graysville

US 27 enters Tennessee from Walker County, Georgia, as a four-lane highway. The route comes to an interchange with Interstate 24 (I-24) and briefly runs concurrently before splitting off as a freeway.

Freeway segment[edit]

Beginning at I-24, and ending at State Route 111 (SR 111), the route is a controlled-access highway for approximately 30 miles (48 km). The highway runs for approximately 1.5 miles (2.4 km), with interchanges for Martin Luther King Boulevard and Fourth Street. The highway then crosses the Tennessee River on the P.R. Olgiati Bridge and comes to an intersection with Manufacturer's Road. The highway crosses Stringer's Ridge where U.S. Route 127 begins, and Dayton Pike (the original route of US 27) splits off and goes through Red Bank. From here, the route is part of Corridor J of the Appalachian Development Highway System. The route then runs on top of a ridge and bypasses Red Bank, and comes to an interchange with SR 153 southbound and Dayton Pike northbound (once again, the old route of US 27). The route continues north, bypassing Soddy-Daisy, with an interchange at Sequoyah Access Road, the main route to the Sequoyah Nuclear Power Plant, and then SR 319 (Hixson Pike). The route then runs along the Tennessee river and SR 111 splits off to the northwest for Dunlap, where the freeway ends. The freeway continues on SR 111.

Hamilton County to Kentucky line[edit]

US 27 continues as a four-lane divided highway through the small communities of Sale Creek and Graysville before crossing into Rhea County, and reaching Graysville. The route then enters Dayton. At Dayton, it intersects SR 30, which connects Dayton with Pikeville to the west and Decatur to the east, and SR 60, which connects Dayton with Cleveland to the southeast. US 27 continues northward through Evensville before arriving at Spring City. At Spring City, it intersects SR 68, which connects the area to Crossville, atop the plateau to the west, and Sweetwater to the east.

From here, US 27 enters Roane County, running concurrently with US 70 going through the city of Rockwood. After US 70 splits to the east, US 27 runs concurrently with SR 61 through Harriman, where it is crossed by I-40. During this stretch, it forms part of the Harvey H. Hannah Memorial Highway, and is signed as such. Just beyond Harriman, near the DeArmond community, US 27 ascends the Cumberland Plateau, and continues northward across the plateau for its remaining 55 miles (89 km) or so in Tennessee.

In Morgan County, the highway passes through Wartburg and Sunbright. At the community of Elgin, it intersects SR 52, which connects the area with the historic village of Rugby and Fentress County to the west. Beyond Elgin, US 27 passes through Robbins, Huntsville, and Helenwood before reaching Oneida in Scott County. In Oneida, US 27 intersects SR 297, which continues westward into the Big South Fork National River and Recreation Area. Winfield is the last sizable town that US 27 passes through in Tennessee before it reaches the community of Isham on the Kentucky border.


The route in Hamilton County was removed from its original location to build the controlled-access highway. The original route ran across the Market Street Bridge, and becomes what is now called Dayton Pike, which then runs through Red Bank, east of the current route, and Soddy-Daisy, west of the current route. The majority of this route still remains, and is sometimes referred to as "Old US 27" or "Old 27."[citation needed]

The first part of the controlled-access segment, the only original planned segment was built in the late 1950s by moving dirt from nearby Cameron Hill.[1] This segment extends from I-24 to Dayton Pike. This route was once signed as I-124.[2] The designation still exists, but it is no longer signed.[2] The controlled-access highway between Dayton Pike and SR 111 was built between the mid-1970s and early 1980s.[citation needed] SR 111 was extended across Walden Ridge at around the same time.[citation needed]

The entire route has been widened to a four-lane highway all the way to the split with SR 61.[citation needed]

Beginning in February 1999, the Olgiati bridge was widened from four to six lanes.[3] This was accomplished by attaching steel beams to the top of the posts over the river.[4] Also in this project, a ramp was added from the bridge on the north side to Manufacturer's Road, replacing a cloverleaf loop ramp which diverged past the ramp. The project, after many delays, was completed in February 2003.[4]

Beginning in the middle of 2012, the Tennessee Department of Transportation (TDOT) began rebuilding US 27 from the Olgiati Bridge to the interchange with US 127. The project involved the replacement of old bridges, widening from two lanes each way to three or four lanes each way, and construction of several retaining walls.[5] Preparations for this project had begun in December 2011.[6] The project was completed in early 2015, months ahead of schedule.[7]

In December 2015, TDOT began a $126 million reconstruction project to rebuild US 27 from I-24 to the recently reconstructed part.[8] The project will widen the route from the existing two or three lanes each direction to three or four lanes each direction (including two more across the Olgiati), straighten out curvy sections, rework the Fourth Street and Martin Luther King interchanges, and add retaining walls. The project is expected to be complete by the middle of 2019.[9] The substructure of the Olgiati Bridge was built wider than the superstructure in anticipation of future widening in the first widening project.[3]

Junction list[edit]

County Location mi km Exit Destinations Notes
Georgia state line 0.0 0.0 US 27 south / SR 1
SR 27 south / SR 29 south
Continuation into Georgia; southern end of SR 27 concurrency; southern end of SR 29 concurrency
Hamilton Chattanooga 2.3–
I-24 – East Ridge Southern end of I-24 concurrency; I-24 exit 180
See I-24
I-24 east / I-124 north to I-75 / US 11 / US 41 / US 64 / US 76 / SR 17 / SR 58 / Williams Street / Long Street – Nashville, Memphis Northern end of I-24 concurrency; Southern terminus of I-124; southern end of I-124 concurrency; I-24 exit 178
1 Main Street Northbound exit and southbound entrance
1A-B SR 316 (Martin Luther King Boulevard) Western terminus of SR 316
1C SR 389 (4th Street)
I-124 south
Northern terminus of I-124; Northern end of I-124 concurrency; western terminus of SR 389
P.R. Olgiati Bridge across the Tennessee River
Manufacturers Road
Red Bank 7.4–
SR 8 (Cherokee Boulevard) Northbound exit and southbound entrance
US 127 (Signal Mountain Road) / SR 8 / SR 27 – Signal Mountain Northern end of SR 27 concurrency
 Morrison Springs Road – Erlanger North Hospital
Chattanooga 13.5–
Mountain Creek Road
Soddy-Daisy 16.9–
SR 153 (Dayton Boulevard) – Chattanooga Northern terminus of SR 153; access to Chattanooga Metropolitan Airport
Thrasher Pike
Harrison Lane
Sequoyah Road
SR 319 (Tsati Terrace)
SR 111 – Dunlap Northern end of freeway
Rhea Graysville 37.5 60.4 SR 303
Dayton 41.7 67.1 SR 60 / SR 378 – Cleveland
43.0 69.2 SR 30 – Pikeville, Decatur
SR 378 Interchange; no direct southbound entrance from SR 378 north
56.6 91.1 SR 68 – Sweetwater Southern end of SR 68 concurrency
Spring City 59.1 95.1 SR 68 – Grandview Northern end of SR 68 concurrency
59.4 95.6 SR 302
Roane 73.3 118.0 US 70 – Westel, Ozone, Crab Orchard, Crossville Southern end of US 70/SR 1 concurrency
Rockwood 76.1 122.5 US 70 / SR 1 / SR 61 / SR 29 – Kingston Northern end of US 70/SR 1 concurrency; northern end of SR 29 concurrency; southern terminus of SR 61
Cardiff 79.5 127.9 SR 382 Provides access to Roane State Community College
Harriman 81.5–
I-40 – Nashville, Knoxville I-40 exit 347
83.1 133.7 SR 29 Southern end of SR 29 concurrency
84.8 136.5 SR 328 – Oakdale
SR 61 – Oliver Springs Interchange; northern end of SR 61 concurrency
Morgan 93.3 150.2 SR 328 – Oakdale, Harriman
Wartburg 101.0 162.5 SR 62 – Oliver Springs, Coalfield Southern end of SR 62 concurrency
104.3 167.9 SR 62 – Lancing Northern end of SR 62 concurrency
Sunbright 112.9 181.7 SR 329 – Deer Lodge
Scott Elgin 121.8 196.0 SR 52 – Rugby
Huntsville 129.7 208.7 SR 297 – Pioneer Southern end of SR 297 concurrency
Oneida 136.3 219.4 SR 297 Northern end of SR 297 concurrency
136.4 219.5 SR 456
Kentucky state line 145.2 233.7 US 27 north Continuation into Kentucky
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Tennessee State Route 29[edit]

State Route 29 primary marker State Route 29 secondary marker

State Route 29
Route information
Length: 141.95 mi (228.45 km)
Highway system
SR 28 SR 30

State Route 29 (SR 29) runs as a secret, or hidden designation, throughout US 27’s routing from Interstate 124's northern terminus in north Chattanooga to the Kentucky state line north of Oneida, though it does separate in Rockwood at an intersection with US 70/SR 1, becoming concurrent with it till Midtown, where it becomes signed as a standalone secondary highway (Pine Ridge Road) and has an interchange with I-40 before entering the South Harriman neighborhood of Harriman (as Ruritan Road) and then becoming hidden again at an intersection with US 27/SR 61 south of downtown.


  1. ^ A Brief History of Cameron Hill
  2. ^ a b "Interstate 124 Tennessee". Interstate-Guide.com. Retrieved September 28, 2007. [self-published source]
  3. ^ a b Carroll, Beverly (December 5, 2011). "Preparations for $11 million widening of Olgiati Bridge on track". The Chattanoogan. Retrieved January 4, 2016. 
  4. ^ a b "Downtown Chattanooga Road Construction Project Tops $126 Million; Work Set To Start Soon". The Chattanoogan. November 15, 2015. Retrieved January 5, 2016. 
  5. ^ Smith, Ellis (March 15, 2012). "Tennessee unveils US 27 highway plan". Chattanooga Times Free Press. Retrieved January 5, 2016. 
  6. ^ McCarthy, Kelly (January 5, 2015). "Highway 27 construction project's countdown to completion". Chattanooga: WRCB-TV. Retrieved January 5, 2016. 
  7. ^ Anderson, Kendi (January 5, 2015). "Three-year project to rebuild US 27 led to some rough patches". Chattanooga Times Free Press. 
  8. ^ Cobb, David (November 15, 2015). "US 27 rebuild from Olgiati to I-24 about to begin". Chattanooga Times Free Press. Retrieved January 5, 2016. 
  9. ^ McCarthy, Kelly (November 17, 2015). "Construction on US 27 starts next month, no detour for drivers". Chattanooga: WRCB-TV. Retrieved January 5, 2015. 
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