Interstate 40 in Tennessee

Interstate 40
Route information
Maintained by TDOT
Length:	455.28 mi (732.70 km)
Existed:	1958 – present
Major junctions
West end:	I-40 at Arkansas state line
	I-69 / I-240 in Memphis I-840 near Burns I-440 in Nashville I-65 in Nashville I-24 in Nashville I-840 in Lebanon I-140 in Knoxville I-75 / I-640 in Knoxville I-275 in Knoxville I-81 in Dandridge
East end:	I‑40 at North Carolina state line
Location
Counties:	Shelby, Fayette, Haywood, Madison, Henderson, Carroll, Decatur, Benton, Humphreys, Hickman, Dickson, Williamson, Cheatham, Davidson, Wilson, Smith, Putnam, Cumberland, Roane, Loudon, Knox, Sevier, Jefferson, Cocke
Highway system
Interstate Highway System Main Auxiliary Suffixed Business Future Tennessee State Routes Interstate US State ← SR 39 SR 40 →

Interstate 40 (I-40) traverses the entirety of the state of Tennessee from west to east, running from the Mississippi River at the Arkansas border to the northern base of the Great Smoky Mountains at the North Carolina border. The road connects Tennessee's three largest cities—Memphis, Nashville, and Knoxville—and crosses all of Tennessee's physiographical provinces and Grand Divisions—the Mississippi Embayment and Gulf Coastal Plain in West Tennessee, the Highland Rim and Nashville Basin in Middle Tennessee, and the Cumberland Plateau, Appalachian Valley and Ridge Province, and Blue Ridge Province in East Tennessee. The Tennessee section of I-40 is 455 miles (732 km) long, the longest of any state.

Route description

West Tennessee

I-40 enters Tennessee from Arkansas via the Hernando de Soto Bridge, which spans the Mississippi River at river mile 736. The Interstate passes across the southern half of Mud Island before crossing the Wolf River Harbor into downtown Memphis. At the I-240 interchange, I-40 abruptly turns north, following the route redesignated due to the Overton Park controversy in the 1970s. I-40 crosses the Wolf River three times in Memphis, as the road passes near the neighborhoods of Frayser and Raleigh and turns back onto the original routing of I-40 (the western continuation of what would have been I-40 at this point is known as Sam Cooper Boulevard).

I-40 leaves the Memphis area, crosses over the Loosahatchie River and Hatchie River, the latter near Brownsville. At mile 78, the road crosses the South Fork of the Forked Deer River into Jackson, and from Jackson proceeds through the northern half of Natchez Trace State Park. At mile 135, I-40 crosses the Tennessee River into Middle Tennessee.

The first 130 miles (210 km) of the Interstate in Tennessee are relatively flat as the road traverses the Gulf Coastal Plain, but there are some gentle to moderately rolling hills, especially as one continues eastward into the higher areas of West Tennessee. Some of the steepest or most rugged sections in West Tennessee are between miles 21–27, around mile 56 (near the Hatchie River crossing), between miles 79–85 around Jackson, around Natchez Trace State Park, and just to the west of the Tennessee River as the road descends about 400 feet (120 m) over the course of a mile.

Middle Tennessee

East of the Tennessee River, the rugged hills of the Western Highland Rim flank I-40 for a considerable stretch before the Interstate descends to the Nashville Basin between miles 186 and 188. In Downtown Nashville, I-40 converges with I-24 and I-65, making Nashville one of just four cities in the United States where six interstate legs converge within the city's boundaries. At mile 219, the Interstate crosses the Stones River just downstream from Percy Priest Dam, and continues for roughly 50 miles (80 km) across mostly open farmland.

Between miles 263 and 266, I-40 crosses the meandering Caney Fork five times before ascending the Eastern Highland Rim, reaching 1,000 feet (300 m) for the first time in the state near Silver Point. The Interstate steadies at the edge of the table-top rim at mile 272 (near Baxter) and continues across relatively flat farmland in south Cookeville. Between miles 292 and 297, the Interstate ascends the western escarpment of the Cumberland Plateau, reaching 2,000 feet (610 m) southeast of Monterey. At mile 308, I-40 crosses the Tennessee Divide, where the Cumberland and Tennessee River watersheds meet (in the eastbound lane, the divide is marked by a sign reading "Entering Emory River watershed"; its westbound lane counterpart notes the beginning of the Caney Fork watershed).

East Tennessee

I-40 remains relatively steady as it continues across the Cumberland Plateau and passes through the northern part of Crossville. East of Crossville, the Crab Orchard Mountains (the southern fringe of the Cumberland Mountains) come into view as the road descends several hundred feet. At mile 329, the Interstate enters Crab Orchard Gap and proceeds through a narrow valley once prone to rockslides. At mile 340, the Interstate enters the Eastern Time Zone, and shortly thereafter the road begins its descent of the Cumberland Plateau into the Tennessee Valley. I-40 hugs the slopes of the plateau's Walden Ridge escarpment for several miles— with dramatic views of the Tennessee Valley below to the south— before reaching the base of the plateau at mile 347 between Harriman and Rockwood.

As it enters the Ridge-and-Valley province (of which the Tennessee Valley is a part), I-40 crosses a series of ridges and valleys characteristic of the region's topography. At mile 351, the road crosses the Clinch River, with the Kingston Fossil Plant and its 1,000-foot (300 m) twin smokestacks dominating the view to the north. The road widens to four lanes at mile 368 as I-40 merges with I-75. Knoxville's skyline comes into view at mile 387 before the road passes through downtown Knoxville.

Beyond Knoxville, the Interstate crosses the Holston and French Broad rivers (the French Broad is much wider due to its impoundment by Douglas Dam a few miles downstream) and continues for several miles along the northern base of English Mountain. At mile 440, the road turns south through the gap between English Mountain and Stone Mountain, revealing a dramatic view of the 4,928-foot (1,502 m) Mount Cammerer at the northeastern end of the Great Smokies range, and the road proceeds into the Pigeon River Gorge, closely following the north bank of the river. The massive mesh nets on the cliffslopes are indicative of the rockslide prevention measures along this stretch of I-40.

Music Highway

The term Music Highway refers to a section of I-40 between Memphis and Nashville. I-40 was designated as such by an act of the Tennessee Legislature in 1997 "from the eastern boundary of Davidson County to the Mississippi River in Shelby County," a distance of about 222 miles (357 km). I-40 is designated as such because of the rich music history in Memphis, Nashville, and the areas in between them. Memphis is known as "the Home of the Blues and the Birthplace of Rock and Roll." Nashville is known as "Music City USA" for its influence on numerous types of music, especially country. Several cities and towns between the two, such as Jackson, Brownsville, Nutbush (Near Ripley), Waverly and others were birthplaces or homes of numerous singers and songwriters. Signs that display the words "Music Highway" along with music notes are erected in both directions along I-40, especially at the borders of Shelby County and Davidson County (Nashville).^[1]

History

The Tennessee leg of I-40 was part of the original 1,047 miles (1,685 km) of Interstate Highways authorized for Tennessee by the Federal Aid Highway Act of 1956. The first section of Interstate 40—Nonconnah Creek to Hindman Ferry Road in Shelby County (originally I-240)—was contracted in 1956, and within a year contracts had been awarded for sections in Davidson, Knox, Roane, Haywood, Madison, Jefferson, and Cocke counties. By 1958, sections in Loudon, Smith, Putnam, Cumberland, Humphreys, Hickman, and Sevier counties had been contracted. Most of I-40 had been completed by the late 1960s.^[2]

In Memphis, I-40 was originally slated to pass through the city's Overton Park, a 342-acre (138 ha) wooded refuge that had become an important stopover for migratory birds. Fearing that the Interstate's construction would upset the park's fragile ecological balance, environmentalists waged a 12-year legal battle to prevent highway construction in the park, culminating in the United States Supreme Court decision, Citizens to Preserve Overton Park v. Volpe. The Supreme Court remanded the case to the District Court for further review, and it ruled that the highway commission had not adequately explored alternative routes. In 1981, the highway commission abandoned plans to route I-40 through Overton Park, and instead redesignated the northern portion of I-240 as I-40.^[3] For over 20 years, I-40 signage existed on the dead-end route toward Overton Park. To this day, signs still exist on overhead gantries leading westbound drivers on Sam Cooper "To Little Rock". Several miles of a limited-access road were actually built within the I-240 loop; this portion of highway still exists and is in regular use as Sam Cooper Boulevard, reaching the eastern end of Chickasaw Country Club and the Binghampton neighborhood, and then East Parkway.

SmartFix 40

Until June 12, 2009,^[4] a section of I-40 through downtown Knoxville between James White Parkway and Hall of Fame Drive was completely closed to all traffic for about 18 months for reconstruction. Through traffic was required to use I-640 or to use surface streets. The four-lane section, which was quite substandard, congested, and accident-prone, was widened to six lanes to improve traffic flow and safety. Several interchanges along that stretch were also reconstructed.^[5]

Geological difficulties

The rugged terrain of East Tennessee presented numerous challenges for I-40 construction crews and engineers. Rockslides, especially along the eastern Cumberland Plateau and in the Pigeon River Gorge, have been a persistent problem since the road's construction.

Crab Orchard

In December 1986, a truck driver was killed when his truck skidded across some rocks that had spilled across the road just east of Crab Orchard (between miles 331 and 333). In response, the Tennessee Department of Transportation (TDOT) flattened the cutslopes along this stretch of Interstate and moved the road 60 feet (18 m) away from the problematic cliffside.^[6]

Twenty rockslides occurred along the Walden Ridge section (miles 341–346) of the eastern plateau in 1968 alone, prompting various remedial measures throughout the 1970s, including the employment of rock buttresses, gabion walls, and horizontal drains. A minor rockslide shut down the right lane of westbound I-40 at mile 343 on May 6, 2013.^[7]

Pigeon River Gorge

An area very prone to rockslides is the Pigeon River Gorge, especially in the vicinity of the Tennessee–North Carolina state line. Throughout the 1970s, this stretch of I-40 was repeatedly shut down by rockslides, sometimes for several weeks at a time. In the late 1970s and early 1980s, TDOT dug over 24,000 feet (7,300 m) of horizontal drains, blasted out large volumes of unstable rocks, and installed massive mesh catchment fences.^[6] Nevertheless, rockslides in 1985 and 1997 again forced the closure of I-40 in the Pigeon River Gorge for several weeks.^[8] Additional stabilization measures were implemented, including the blasting of loose rock, the installation of rock bolts, and the construction of a better drainage system.^[9] In spite of these measures, another massive rock slide occurred in the Pigeon River Gorge on October 26, 2009, blocking all lanes just across the border at North Carolina mile 3. The section was closed to traffic in both directions until April 25, 2010.^[10] On January 31, 2012, the westbound lanes of I-40 were closed because of a rockslide near the North Carolina border. Traffic was detoured along I-26 and I-81 and reopened a few months later.^[11]

Sinkholes

Sinkholes are a consistent issue along highways in East Tennessee. One particularly problematic stretch is a section of I-40 between miles 365 and 367 in Loudon County, which is underlain by cavernous rock strata. In the 1970s and 1980s, TDOT employed numerous stabilization measures in this area, including backfilling existing sinkholes with limestone, collapsing potential sinkholes, and paving roadside ditches to prevent surface water from seeping into the volatile soil.^[6]

Future

TDOT officially announced the I-40/I-81 Corridor Feasibility Study on July 27, 2007.^[12] The intent of this study is to assess deficiencies along I-40 and I-81 in Tennessee and to develop upgrade proposals for the existing corridor.^[13] This study was completed in 2008.

On January 18, 2008, the Federal Highway Administration authorized the states of Mississippi and Tennessee to extend I-69 from the I-40/SR 300 interchange in north Memphis to the I-55/I-69 interchange in Hernando, Mississippi; however, Tennessee has not yet signed the extension of the route, although Mississippi has already done so.^[14]

Construction was recently completed on the I-40/I-240 interchange in East Memphis. This reconfiguration was needed since the original configuration was designed as if I-40 were to go through the center of the city along what is now Sam Cooper Boulevard. The first phase of the project replaced a one-lane loop ramp from I-40 westbound to I-240 southbound with a two-lane flyover. Portions of both Interstates were also widened slightly. This phase was completed in 2003. The second phase was stalled due to funding and redesign. It included the installation of the remaining flyover from the north loop of I-40 to I-40 eastbound. It replaced a one-lane ramp with a slow design speed that has been the site of several accidents over the years. Other parts of this phase included the widening of I-40 between Sycamore View Road and Covington Pike (requiring the replacement of the Wolf River Bridge with a 14-lane bridge), widening of I-240, addition of through lanes on Sam Cooper Boulevard, and reconfiguration of the Covington Pike interchange. The project cost $109 million (the highest bid project in TDOT history), began late 2013, and was completed by the late fall of 2016.

A fifth interchange is being added along the stretch of interstate around Cookeville, TN, and a road will be built leading to nearby U.S. Route 70N to help ease traffic along Tennessee State Route 56 (I-40 Exit 280), Tennessee State Route 135 (I-40 Exit 286), and Tennessee State Route 136 (I-40 Exit 287). The initial route will be 2 lanes with a modified diamond interchange, with the right-of-way for future expansion.^[15]

Exit list

County	Location	mi	km	Exit	Destinations	Notes
Mississippi River		0.00	0.00	Hernando de Soto Bridge I-40 continues west into Arkansas
Shelby	Memphis			1	Riverside Drive / Front Street – Downtown Memphis	Western end of Music Highway designation
				1A	2nd Street / 3rd Street (SR 3 / SR 14)	Westbound exit and eastbound entrance
				1B	US 51 (Danny Thomas Boulevard, SR 1)	Signed as exits 1C (south) and 1D (north) westbound
				1E	I-240 south (I-69 south) / Madison Avenue – Jackson	Western end of I-69 overlap; I-240 exit 31
				1F	SR 14 (Jackson Avenue)	Westbound exit and eastbound entrance
				2	Chelsea Avenue / Smith Avenue
				2A	To US 51 (SR 3) – Millington	Access via I-69 north (SR 300 west); eastern end of I-69 overlap
				3	Watkins Street
				5	Hollywood Street
				6	Warford Street
				8	SR 14 (Jackson Avenue / Austin Peay Highway)	Signed as exits 8A (north) and 8B (south) westbound
				10	SR 204 (Covington Pike)
				12A	US 64 / US 70 / US 79 (Summer Avenue, SR 1) / White Station Road	Eastbound exit only; westbound access via exit 12B
				10A	I-240 west – Jackson, Miss.	Westbound exit follows Sam Cooper Blvd. numbering; no exit number eastbound
				12B	Sam Cooper Boulevard	Westbound left exit and eastbound left entrance
				12	Sycamore View Road – Bartlett
	Bartlett			14	Whitten Road
				15	Appling Road	Signed as exits 15A (south) and 15B (north) eastbound
				16	SR 177 – Germantown	Signed as exits 16A (south) and 16B (north) westbound
				18	US 64 (SR 15) – Somerville, Bolivar, Bartlett
	Lakeland			20	Canada Road – Lakeland
	Arlington			24	I-269 – Millington, Collierville	Signed as exits 24A (west) and 24B (east)
				25	SR 205 – Arlington, Collierville
Fayette	​			35	SR 59 – Covington, Somerville
	​			42	SR 222 – Stanton, Somerville
Haywood	​			47	SR 179 (Stanton-Dancyville Road)
	​			52	SR 179 / SR 76 – Whiteville
	Brownsville			56	SR 76 – Brownsville, Somerville
				60	SR 19 (Mercer Road)
	​			66	US 70 (SR 1) – Brownsville, Ripley
Madison	​			68	SR 138 (Providence Road)
	​			74	Lower Brownsville Road
	​			76	SR 223 south – McKellar-Sipes Regional Airport
	Jackson			79	US 412 (SR 20) / Vann Drive – Jackson, Alamo, Dyersburg
				80	US 45 Byp. (SR 186) – Jackson, Humboldt	Signed as exits 80A (south) and 80B (north)
				82	US 45 (SR 5) – Jackson, Milan	Signed as exits 82A (south) and 82B (north)
				83	Campbell Street
				85	Christmasville Road, Dr. F.E. Wright Drive – Jackson
				87	US 70 (SR 1) / US 412 east (SR 20) – Huntingdon, McKenzie, Jackson
	​			93	SR 152 (Law Road) – Lexington
Henderson	​			101	SR 104
	​			108	SR 22 – Parkers Crossroads, Lexington, Huntingdon
Henderson–Carroll county line	​			116	SR 114 – Natchez Trace State Park
Decatur	​			126	US 641 / SR 69 – Camden, Paris, Parsons
Benton	​			133	SR 191 (Birdsong Road)
Tennessee River				Bridge over the Tennessee River
Humphreys	​			137	Cuba Landing
	​			143	SR 13 – Linden, Waverly
Hickman	​			148	SR 50 to SR 229 – Centerville
	​			152	SR 230 – Bucksnort
Dickson	​			163	SR 48 – Centerville, Dickson
	Dickson			172	SR 46 – Centerville, Dickson
	​			176	I-840 east – Franklin	I-840 exit 0; half-clover interchange.
Williamson	​			182	SR 96 – Franklin, Fairview, Dickson
Cheatham	​			188	SR 249 – Kingston Springs, Ashland City
Davidson	Nashville			192	McCrory Lane – Pegram
				196	US 70S (SR 1) – Bellevue, Newsom Station
				199	SR 251 (Old Hickory Boulevard)
				201	US 70 (Charlotte Pike, SR 24)	Signed as exits 201A (east) and 201B (west) eastbound
				204	SR 155 (Briley Parkway, White Bridge Road) / Robertson Avenue	Signed as exits 204A (north) and 204B (south) westbound; SR 155 exit 6
				205	51st Avenue, 46th Avenue – West Nashville
				206	I-440 east – Knoxville	Left exit westbound
				207	28th Avenue	Westbound exit and eastbound entrance
					Jefferson Street	Eastbound exit and westbound entrance
				208	I-65 north to I-24 west – Louisville, Clarksville	Western end of I-65 overlap, south exit 84B; signed as exit 208B eastbound
				209	US 70 (Charlotte Avenue, SR 24)	Eastbound exit and westbound entrance
				209A	Church Street, Charlotte Avenue	Signed as exit 209 westbound
					US 70 / US 70S / US 431 (Broadway, SR 1, SR 24) / Demonbreun Street	Signed as exit 209B eastbound
				209B	Demonbreun Street	Westbound exit and eastbound entrance
				210	I-65 south – Huntsville	Eastern end of I-65 overlap, north exit 82B; signed as exit 210B westbound
				210C	US 31A south / US 41A south (4th Avenue, SR 11 south) / 2nd Avenue
				211B	I-24 west to I-65 north – Clarksville, Louisville	Western end of I-24 overlap, east exit 50B; formerly the point where I-24, I-40, and I-65 met
				212	Hermitage Avenue (US 70, SR 24)	Westbound exit and eastbound entrance
					Fesslers Lane	Eastbound exit and westbound entrance
				213A	I-24 east / I-440 west – Chattanooga, Memphis	Eastern end of I-24 overlap, west exit 52B
				213	To US 41 (Murfreesboro Road, US 70S, SR 1) / Spence Lane	Eastbound exit is via 213A
				215	SR 155 (Briley Parkway)	Signed as exits 215A (south) and 215B (north); SR 155 south exit 27; north no number signed
				216A	Nashville International Airport	Eastbound exit and westbound entrance
				216B	SR 255 south (Donelson Pike) – Nashville International Airport, Air Freight
				216C	SR 255 north (Donelson Pike)
				219	Stewarts Ferry Pike – J. Percy Priest Dam
				221A	SR 45 north (Old Hickory Boulevard) – The Hermitage	Eastern end of Music Highway designation
				221B	Old Hickory Boulevard
Wilson	​			226	SR 171 – Mount Juliet	Signed as exits 226A (south), 226B (north) eastbound and 226C (Belinda Parkway / Providence Way)
	​			229	Beckwith Road	Signed as exits 229A (south) and 229B (north) eastbound
	Lebanon			232	SR 109 – Gallatin	Signed as exits 232A (south) and 232B (north) eastbound
				235	I-840 west – Murfreesboro	I-840 exit 76; trumpet interchange.
				236	South Hartmann Drive
				238	US 231 (SR 10) – Lebanon, Hartsville
				239	US 70 (SR 26) – Watertown, Lebanon	Signed as exits 239A (east) and 239B (west) eastbound
	​			245	Linwood Road
Smith	​			254	SR 141 – Alexandria
	​			258	SR 53 – Carthage, Gordonsville
Putnam	​			268	SR 96 (Buffalo Valley Road) – Center Hill Dam
	​			273	SR 56 south / SR 141 west – Smithville, McMinnville	Western end of SR 56 overlap
	​			276	Old Baxter Road
	Baxter			280	SR 56 north – Baxter, Gainesboro	Eastern end of SR 56 overlap
	Cookeville				Mine Lick Creek Road	Future interchange[15]
				286	SR 135 (South Willow Avenue) – Cookeville
				287	SR 136 – Cookeville, Sparta
				288	SR 111 – Livingston, Sparta
				290	US 70N – Cookeville
	Monterey			300	US 70N (SR 24) / SR 84 – Monterey, Livingston
				301	US 70N (SR 24) to SR 84 – Monterey, Jamestown, Livingston
Cumberland	​			311	Plateau Road
	Crossville			317	US 127 (SR 28) – Crossville, Jamestown
				320	SR 298 (Genesis Road) – Crossville
				322	SR 101 (Peavine Road) – Crossville, Fairfield Glade
	​			329	To US 70 (SR 1) – Crab Orchard
	​			338	SR 299 south (Westel Road) – Rockwood	Western end of SR 299 overlap
Roane	Rockwood			340	SR 299 north (Airport Road)	Eastern end of SR 299 overlap
	Harriman			347	US 27 (South Roane Street) – Harriman, Rockwood
				350	SR 29 – Harriman, Midtown
	Clinch River			Bridge over the Clinch River
	Kingston			352	SR 58 south – Kingston	Western end of SR 58 overlap
				355	Lawnville Road
				356	SR 58 north (Gallaher Road) – Oak Ridge	Eastern end of SR 58 overlap; signed as exits 356A (north) and 356B (south) westbound
	​			360	Buttermilk Road
	​			362	Industrial Park Road – Roane Regional Business and Technology Park	Opened in 2008.[16]
Loudon	​			364	US 321 (SR 73) / SR 95 – Lenoir City, Oak Ridge
	​			368	I-75 south – Chattanooga	Western end of I-75 overlap
Knox	​			369	Watt Road
	Farragut			373	Campbell Station Road – Farragut
	Knoxville			374	SR 131 (Lovell Road)
				376	I-140 east / SR 162 north – Oak Ridge, Maryville	Signed as exits 376A (north) and 376B (east); I-140 west exits 1C-D
				378	Cedar Bluff Road	Signed as exits 378A (south) and 378B (north) westbound
				379	Bridgewater Road, Walker Springs Road
				379A	Gallaher View Road	Eastbound access is via exit 379
				380	US 11 (SR 1) / US 70 – West Hills
				383	SR 332 (Northshore Drive) / Papermill Drive, Weisgarber Road	Westbound slip ramp has entrances and exits to/from Papermill Drive and Weisgarber Road
				385	I-75 north / I-640 east – Lexington	Eastern end of I-75 overlap
				386A	University Avenue, Middlebrook Pike (SR 169)	Westbound exit is part of exit 386B
				386B	US 129 (Alcoa Highway, SR 115) – Alcoa, Maryville, McGhee Tyson Airport, Great Smoky Mountains National Park
				387	SR 62 (Western Avenue) / 17th Street
				387A	I-275 north – Lexington	I-275 exit 0
				388	US 441 south (Henley Street, SR 33 south) – Downtown Knoxville	No westbound exit, US 441 exit 0
				388A	SR 158 west to US 441 south (SR 33 south) / James White Parkway – Downtown Knoxville, University of Tennessee	Western end of SR 158 overlap (unsigned)
				389	To US 441 north (Hall of Fame Drive, SR 158 east to SR 33 north) / Broadway	Eastern end of SR 158 overlap (unsigned)
				390	Cherry Street
				392	US 11W (Rutledge Pike, SR 1) / Knoxville Zoo Drive	Signed as exits 392A (south) and 392B (north)
				393	I-640 west / US 25W north (SR 9 north) to I-75 north – Lexington	Western end of US 25W/SR 9 overlap
				394	US 11E / US 25W south / US 70 (Asheville Highway, SR 9 south, SR 168)	Eastern end of US 25W/SR 9 overlap
	Holston River			Bridge over the Holston River
	Strawberry Plains			398	Strawberry Plains Pike – Strawberry Plains
	Midway			402	Midway Road – Seven Islands State Birding Park
Sevier	Sevierville–Kodak line			407	SR 66 south – Gatlinburg, Sevierville, Pigeon Forge	Western end of SR 66 overlap
Jefferson	​			412	Deep Springs Road – Douglas Dam
	Dandridge			415	US 25W (SR 9, SR 66 north) / US 70 – Dandridge	Eastern end of SR 66 overlap
				417	SR 92 – Dandridge, Jefferson City
	​			421	I-81 north – Bristol	I-81 exit 1
	​			424	SR 113 – Dandridge, White Pine
	French Broad River			Bridge over the French Broad River
Cocke	Newport			432A	US 411 south / US 25W north / US 70 west / SR 9 north – Sevierville
				432B	US 25W south (SR 9 south) / US 70 east – Newport
				435	US 321 / SR 32 – Newport, Gatlinburg
	​			440	SR 73 to US 321 (Wilton Springs Road) – Gatlinburg, Cosby
	​			443	Foothills Parkway – Gatlinburg, Cosby, Great Smoky Mountains National Park
	​			447	Hartford Road – Hartford
	​			451	Waterville Road
	​				I‑40 east – Asheville	Continuation into North Carolina
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus       Incomplete access       Unopened

Auxiliary routes

• I-140 spur off I-40/I-75 to Alcoa
• I-240 Memphis Inner Beltway; overlaps with I-69
• I-440 inner bypass around Nashville
• I-640 bypass around Knoxville
• I-840 outer bypass around Nashville. Replaced SR 840

See also

• Tennessee portal
• U.S. Roads portal

References

Footnotes

Works cited

External links

Route map: Google

• Media related to Interstate 40 in Tennessee at Wikimedia Commons

Interstate 40
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