On September 26, 1939, the dual designations were removed, leaving SH 1 only on a small stretch west of Dallas.
State Highway 28 was designated on September 13, 1917, on a route that ran across the southern Texas Panhandle from Farwell to Mineral Wells.
[11] The route was finally designated on June 17, 1918, from Greenville to SH 5 at an unknown point north of Wolfe City.
On August 20, 1918, the route was extended to the Red River and was decided to cross SH 5 at Honey Grove.
State Highway 52 was designated on August 21, 1923, from Hedley through Wellington to the Oklahoma border as a renumbering of a section of SH 13.
It was first designated on August 21, 1923, over a route from Ganado through Bay City, Columbia, and Angleton to a point on the mainland just east of Galveston, replacing SH 19A.
[43] State Highway 88 was designated on August 21, 1923, as a route across the Texas Panhandle from Clarendon north to the Oklahoma border near Spearman, as a renumbering of SH 33B.
[63] The route was again designated on March 31, 1955, on an existing route from Lubbock west through Levelland to the New Mexico state line as a renumbering of SH 290, to match the numbering of New Mexico State Road 116 (NM 116), which was renumbered from NM 92 that same day "for the convenience of the traveling public".
SH 139 was instead proposed that same day as a connector route between Chilton and Marlin (previously unnumbered; originally designated on August 9, 1926).
On May 29, 1941, the path east of Hallettsville was rerouted back to Eagle Lake, replacing SH 253 (the route to Wharton was never built).
[123] State Highway 226 was designated on February 18, 1936, as a connector from then-SH 112 (now SH 97) to the location of the monument on the Guadalupe River commemorating the firing of the first shot in the Texas-Mexican Revolution.
[134][135] State Highway 232 was designated on August 1, 1936, as a connecting route between Blanco and SH 80 south of Wimberley.
State Highway 235 was designated on September 22, 1936, as a connecting route from Vidor northeast to the Deweyville bridge crossing the Sabine River and continuing into Louisiana.
[137] State Highway 241 was designated on November 24, 1936, as a route southward from Jourdanton, ending at Freer, with the possible extension further south to Hebbronville.
State Highway 253 was designated on September 16, 1937, as a connecting route between Hallettsville and Eagle Lake as a renumbering of part of SH 200, which was rerouted southeast to Wharton.
State Highway 264 was designated on May 24, 1938, as a connector route from SH 27 near Fredericksburg to the American Legion Cemetery.
[164] The SH 267 designation was assigned in 2012 as a proposed relief route around Dublin in Erath County previously considered as a rerouting of on March 29, 2012.
State Highway 272 was designated on June 21, 1938, as a connector route from Neches north to Todd City.
[170] State Highway 278 was designated in 1938 as a route from Floydada West through Littlefield to SH 214 south of Muleshoe, near Enochs.
State Highway 281 was proposed to be designated on September 26, 1939, from Jacksboro southeast into Fort Worth, replacing a portion of SH 34 (it would go from Oklahoma to Dumas if US 287 was not accepted).
[173] State Highway 284 was designated on September 26, 1939, as a connector route from Goldthwaite southeast to Lometa as a renumbering of SH 74A.
[175] State Highway 292 was designated on September 26, 1939, as a connector route from US 67 north to Keene as a renumbering of SH 68 Spur.
[177] State Highway 295 was designated on September 26, 1939, as a more direct route from Victoria north to Hallettsville, replacing part of SH 44.
State Highway 307 was designated on January 24, 1939, as a transit route along the southern edge of Texas A&M University.
[131] The route ran along what is now George Bush Drive from Wellborn Road to Texas Avenue (SH 6-B).
[187] State Highway 314 was designated on April 1, 1939, as a connector route between Bailey and Commerce via Wolfe City.
State Highway 319 was designated on September 26, 1939, as a route from Jacksboro southeast into Fort Worth, replacing a portion of SH 34.
This route was cancelled on November 25, 1975, as the location of SH 335 had not been established on the ground, no right of way had been purchased, and no action had been taken to place this number in active use.
[206] State Highway 340 was designated on August 1, 1941, as a connecting route from US 96 north of Kirbyville east to near Bleakwood.
State Highway 355 was designated on February 21, 1946, along a former portion of FM 118 as a connector route between US 67 and then-SH 24 east of Greenville.