State Route 75 (SR 75) is state highway in

Tennessee Tennessee ( , ), officially the State of Tennessee, is a landlocked state in the Southeastern region of the United States. Tennessee is the 36th-largest by area and the 15th-most populous of the 50 states. It is bordered by Kentucky to th ...

in the northeastern portion of the state. The highway begins at

US 11E U.S. Route 11E (US 11E) is a divided highway of US 11 in the U.S. states of Tennessee and Virginia. The U.S. Highway, which is complemented by US 11W to the north and west, runs from US 11, US 11W, and US 70 in Knoxville, Tennessee north and e ...

and

US 321 U.S. Route 321 (US 321) is a spur of U.S. Route 21. It runs for from Hardeeville, South Carolina to Lenoir City, Tennessee; with both serving as southern termini. It reaches its northernmost point at Elizabethton, Tennessee. Because ...

Limestone Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms whe ...

and ends at SR 126 in Blountville.

Route description

Washington County

SR 75 begins as a 2-lane highway in Washington County in

at an intersection with

/ SR 34. The highway then heads northeast through rural farmland to have an intersection with SR 81 just before passing through

Sulphur Springs Mineral springs are naturally occurring springs that produces hard water, water that contains dissolved minerals. Salts, sulfur compounds, and gases are among the substances that can be dissolved in the spring water during its passage under ...

. SR 75 then continues to enter

Gray Grey (more common in British English) or gray (more common in American English) is an intermediate color between black and white. It is a neutral or achromatic color, meaning literally that it is "without color", because it can be composed o ...

, where it has an interchange with I-26/

US 23 } U.S. Route 23 or U.S. Highway 23 (US 23) is a major north–south U.S. Highway between Jacksonville, Florida, and Mackinaw City, Michigan. It is an original 1926 route which originally reached only as far south as Portsmouth, Ohio, and has sinc ...

(Exit 13). The highway then widens to a 4-lane undivided highway and passes just southeast of downtown before leaving Gray and passing through Spurgeon, where it has an intersection with SR 36. SR 75 then crosses the

South Fork Holston River The Holston River is a river that flows from Kingsport, Tennessee, to Knoxville, Tennessee. Along with its three major forks (North Fork, Middle Fork and South Fork), it comprises a major river system that drains much of northeastern Tennessee ...

into Sullivan County, just north of

Boone Dam Boone Dam is a hydroelectric and flood control dam on the South Fork Holston River on the border between Sullivan County and Washington County in the U.S. state of Tennessee. It is one of three dams on the South Fork Holston owned and operated ...

and

Boone Lake Boone Lake is a reservoir in Sullivan and Washington counties in northeastern Tennessee, formed by the impoundment of the South Fork Holston River and Watauga River behind Boone Dam.

Sullivan County

SR 75 continues northeast to pass through Boring before entering Blountville and passing by the

Tri-Cities Regional Airport Tri-Cities Airport (also known as Tri-Cities Airport, TN/VA), is in Blountville, Tennessee, United States. It serves the Tri-Cities area (Bristol, Kingsport, Johnson City) of Northeast Tennessee and Southwest Virginia. The airport is governed ...

, where it has an interchange with SR 357. SR 75 then narrows to 2-lanes and passes rural areas of Blountville before entering downtown, where it comes to an intersection with SR 126. The entire route of SR 75 is a secondary highway.

Future

A widening project has been taking place on SR 75 to provide a four-lane highway from

Interstate 26 Interstate 26 (I-26) is a main route of the Interstate Highway System in the Southeastern United States. Nominally east–west, as indicated by its even number, I-26 runs from the junction of U.S. Route 11W (US 11W) and US 23 in K ...

to the

in Blountville. On November 1, 2013 TDOT opened all four lanes of traffic, but much work still needs to be done.Road to Tri-Cities Airport now Four lanes
/ref>

Junction list

References

External links

SR 75 and SR 36 Construction project
075 Transportation in Sullivan County, Tennessee Transportation in Washington County, Tennessee {{Tennessee-road-stub