Texas State Highway 8
|Maintained by TxDOT|
|Length:||41.4 mi (66.6 km)|
|Existed:||1917 – present|
|South end:||SH 155 in Linden|
|I‑30 in New Boston|
|North end:||Hwy. 41|
SH 8 was one of the original twenty six state highways proposed in 1917, proposed as an 'East Texas Highway.' In 1919 the routing follows the present day SH 8 from the Arkansas State Line to its terminus in Linden, then continued south on present day U.S. Highway 59 through Marshall, to Carthage. On U.S. Highway 96, SH 8 traveled through San Augustine, Jasper to its junction with SH 62, where it turned towards its terminus in Orange.
In 1926, US 59 and 96 were overlaid over pieces of SH 8. While the entirety of the SH 8 maintained its number, by 1939 most of SH 8 was cancelled, leaving only the Arkansas-Corley segment to the old highway. In 1947 a small segment was reassigned back to SH 8 from US 59 from Corley to Linden when US 59 was rerouted further east.
SH 8 was rerouted around the western side of Linden in 1964, with the old route becoming FM 125.
SH 8A was an alternate routing added just east of SH 8 from Center to Orange in 1919. By 1926, it had been renumbered as SH 87. SH 8A was instead used as a spur from SH 8 to Gary. By 1933, this was renumbered as SH 181.
SH 8B was a spur route going from St. Augustine south to Zavalla. By 1926, this route had been cancelled.
SH 8 begins on the south side of the city on Linden at an intersection with SH 155, less than a quarter of a mile west of its intersection with US Route 59 (Future Interstate 369). The highway travels north through northern Cass County, crossing over Wright Patman Lake into Bowie County. The highway briefly turns west with US Route 67 when they intersect in Maud. The route then turns back north, running along the western edge of the Red River Army Depot. It then passes through the city of New Boston and intersects Interstate 30. The route then continues north, crossing the Red River, and the Arkansas State Line, where it becomes Arkansas Highway 41.
|SH 11 (Houston Street)|
|Bowie||Maud||US 67 (Broadway Street)||South end of US 67 concurrency|
|US 67||North end of US 67 concurrency|
|New Boston||FM 1840 (Walters Boulevard)|
|US 82 (Front Street)|
|Hwy. 41 – north of New Boston|