Route information | ||||
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Maintained by TxDOT | ||||
Length | 312.50 mi [1] (502.92 km) | |||
Existed | April 4, 1917–present | |||
Major junctions | ||||
West end | ![]() | |||
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Contents
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East end | ![]() | |||
Location | ||||
Country | United States | |||
State | Texas | |||
Counties | Hays, Caldwell, Bastrop, Lee, Burleson, Brazos, Madison, Houston, Cherokee, Nacogdoches, San Augustine, Sabine | |||
Highway system | ||||
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State Highway 21 (SH 21) runs from the Texas-Louisiana boundary east of San Augustine to San Marcos in east and central Texas. SH 21 mostly follows the alignment of the Old San Antonio Road and the El Camino Real, except for the portion between Midway and Bryan, where the Old San Antonio Road took a more northerly route, and SH 21 follows a more direct route. That section of the Old San Antonio Road is served by Texas State Highway OSR.
SH 21 was one of the original 25 routes proposed in Texas on June 21, 1917, along a route from the Louisiana state line east of St. Augustine to Gonzales, overlaid on top of the Gonzales-St. Augustine Highway. [2] There was proposed extension southward to Karnes City on February 18, 1918. [3] On July 16, 1923, the terminus was shortened to Giddings, with the section south of there being cancelled. [4] A spur, SH 21 Spur, was designated on March 19, 1930, from Milam to Hemphill. On August 1, 1930, this spur became part of SH 87. On September 29, 1933, SH 21 was extended to Lockhart. On July 15, 1935, the section from Giddings to Lockhart was cancelled, and SH 21 was rerouted though Lincoln, replacing part of SH OSR, and followed SH 44 to Giddings. [5] On October 21, 1936, SH 21 Spur to Chireno was added. [6] On May 18, 1937, the spur in Chireno became a loop, SH 21 Loop. [7] On February 21, 1938, another SH 21 Spur to McMahan's Chapel was added. [8] On April 19, 1938, the section of SH 21 from Lincoln to Giddings was cancelled, and SH 21 was extended to Bastrop, replacing part of SH OSR. On September 26, 1939, the section from Paige to Bastrop was cancelled, as it was already part of US 290. The spur and loop became Loop 34 (Chireno) and Spur 35 (McMahan's Chapel). On August 2, 1943, the western terminus had been extended to end in San Marcos, along its current route, replacing part of SH OSR.
On June 24, 2010, the SH 21 designation was extended along SH 80 and SH 142 to end at I-35. [9] [10]
County | Location | mi [11] | km | Exit | Destinations | Notes |
---|---|---|---|---|---|---|
Hays | San Marcos | 0.0– 0.2 | 0.0– 0.32 | ![]() ![]() ![]() | I-35 exit 205; west end of SH 80 overlap | |
0.9 | 1.4 | ![]() ![]() ![]() ![]() | Interchange; east end of SH 80 / SH 142 overlap | |||
Caldwell–Hays county line | | 6.4 | 10.3 | ![]() ![]() | ||
| 7.8 | 12.6 | ![]() ![]() | |||
Hays | Uhland | 9.3 | 15.0 | ![]() ![]() ![]() ![]() | ||
Caldwell | Niederwald | 13.9 | 22.4 | ![]() ![]() | West end of FM 2001 overlap | |
Caldwell–Hays county line | 15.3 | 24.6 | ![]() ![]() | East end of FM 2001 overlap | ||
Caldwell | Mustang Ridge | 18.0– 18.2 | 29.0– 29.3 | ![]() ![]() | SH 130 exit 461/463 | |
19.0 | 30.6 | ![]() ![]() | ||||
Bastrop | Saint Mary's Colony | 25.5 | 41.0 | ![]() | Interchange | |
Cedar Creek | 30.3 | 48.8 | ![]() | |||
| 34.5 | 55.5 | ![]() ![]() | |||
| 35.8 | 57.6 | ![]() ![]() | Interchange; west end of SH 71 overlap | ||
Bastrop | 37.8 | 60.8 | ![]() ![]() ![]() ![]() | interchange; west end of freeway | ||
39.1 | 62.9 | ![]() ![]() ![]() ![]() | ||||
40.0 | 64.4 | ![]() ![]() | Interchange; east end of freeway | |||
42.1 | 67.8 | ![]() ![]() ![]() ![]() | Interchange; east end of SH 71 overlap; west end of SH 95 overlap | |||
42.8 | 68.9 | ![]() ![]() ![]() ![]() | east end of SH 95 overlap; west end of Loop 150 overlap | |||
43.5 | 70.0 | ![]() ![]() | East end of Loop 150 overlap | |||
43.6 | 70.2 | ![]() | ||||
Circle D-KC Estates | 48.6 | 78.2 | ![]() ![]() | |||
Paige | 55.2– 55.4 | 88.8– 89.2 | ![]() | Interchange | ||
Lee | | 62.7 | 100.9 | ![]() ![]() | ||
Lincoln | 67.4 | 108.5 | ![]() | |||
| 69.5 | 111.8 | ![]() | Interchange | ||
| 74.1 | 119.3 | ![]() ![]() | |||
Old Dime Box | 77.8 | 125.2 | ![]() ![]() | |||
Burleson | | 82.4 | 132.6 | ![]() ![]() | ||
San Antonio Prairie | 84.8 | 136.5 | ![]() ![]() | |||
| 88.2 | 141.9 | ![]() ![]() | |||
Caldwell | 91.4 | 147.1 | ![]() | |||
92.4 | 148.7 | ![]() | ||||
92.6 | 149.0 | ![]() | ||||
| 94.0 | 151.3 | ![]() | |||
| 98.3 | 158.2 | ![]() ![]() | West end of FM 1362 overlap | ||
Cooks Point | 99.0 | 159.3 | ![]() ![]() | East end of FM 1362 overlap | ||
| 103.5 | 166.6 | ![]() ![]() | West end of FM 50 overlap | ||
Brazos | | 105.0 | 169.0 | ![]() ![]() | East end of FM 50 overlap | |
| 106.5 | 171.4 | ![]() ![]() | |||
| 108.8 | 175.1 | ![]() ![]() | Interchange | ||
Bryan | 112.9– 113.0 | 181.7– 181.9 | ![]() | Interchange | ||
114.2 | 183.8 | ![]() ![]() ![]() ![]() | ||||
115.5 | 185.9 | ![]() ![]() | ||||
115.8 | 186.4 | ![]() ![]() | ||||
116.4– 116.5 | 187.3– 187.5 | ![]() ![]() ![]() | Interchange; west end of US 190 overlap | |||
Wixon Valley | 121.3 | 195.2 | ![]() ![]() | |||
Kurten | 124.2 | 199.9 | ![]() ![]() ![]() | |||
124.6 | 200.5 | ![]() | ||||
125.5 | 202.0 | ![]() ![]() ![]() | ||||
| 130.7 | 210.3 | ![]() ![]() | |||
Madison | | 134.2 | 216.0 | ![]() ![]() | ||
North Zulch | 137.9 | 221.9 | ![]() | Interchange | ||
138.1 | 222.3 | ![]() ![]() | ||||
138.6 | 223.1 | ![]() ![]() | ||||
Cottonwood | 146.1 | 235.1 | ![]() ![]() | |||
| 148.5 | 239.0 | ![]() ![]() | West end of FM 1452 overlap | ||
| 148.8 | 239.5 | ![]() ![]() | East end of FM 1452 overlap | ||
Madisonville | 150.4 | 242.0 | ![]() ![]() | |||
150.7 | 242.5 | ![]() ![]() | ||||
150.9 | 242.9 | ![]() ![]() ![]() ![]() ![]() ![]() | ||||
152.9– 153.0 | 246.1– 246.2 | ![]() ![]() ![]() | I-45 exit 142; east end of US 190 overlap | |||
Jenkins | 154.5 | 248.6 | ![]() ![]() | |||
| 155.6 | 250.4 | ![]() ![]() | |||
| 160.8 | 258.8 | ![]() ![]() | |||
Midway | 161.8 | 260.4 | ![]() ![]() | |||
161.9 | 260.6 | ![]() ![]() | ||||
162.2 | 261.0 | ![]() ![]() ![]() ![]() | ||||
Antioch | 166.1 | 267.3 | ![]() ![]() | |||
Houston | Sand Ridge | 169.8 | 273.3 | ![]() ![]() | ||
Mapleton | 171.4 | 275.8 | ![]() ![]() | |||
Austonio | 175.1 | 281.8 | ![]() ![]() | west end of FM 1280 overlap | ||
175.2 | 282.0 | ![]() ![]() | east end of FM 1280 overlap | |||
Cooper | 180.0 | 289.7 | ![]() ![]() | |||
| 187.9 | 302.4 | ![]() ![]() | West end of SH 7 overlap | ||
Crockett | 188.3 | 303.0 | ![]() | |||
189.0 | 304.2 | ![]() ![]() ![]() | ||||
189.6– 189.7 | 305.1– 305.3 | ![]() ![]() ![]() ![]() | East end of SH 7 overlap; traffic circle around Houston County Courthouse | |||
189.8 | 305.5 | ![]() ![]() | ||||
191.0 | 307.4 | ![]() | ||||
| 193.6 | 311.6 | ![]() ![]() | |||
Belott | 201.4 | 324.1 | ![]() | |||
| 208.7 | 335.9 | ![]() ![]() | West end of FM 227 overlap | ||
| 209.3 | 336.8 | ![]() ![]() | East end of FM 227 overlap | ||
Weches | 210.8 | 339.2 | ![]() | |||
Cherokee | Weeping Mary | 220.2 | 354.4 | ![]() ![]() | ||
Alto | 223.0 | 358.9 | ![]() ![]() | |||
223.2 | 359.2 | ![]() | ||||
Linwood | 228.0 | 366.9 | ![]() ![]() | |||
228.2 | 367.3 | ![]() ![]() | ||||
Nacogdoches | Douglass | 234.7 | 377.7 | ![]() ![]() | West end of FM 225 overlap | |
234.7 | 377.7 | ![]() ![]() | East end of FM 225 overlap | |||
Nacogdoches | 247.3 | 398.0 | ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | Interchange; western end of US 59/Loop 224 concurrency; western terminus of Bus. SH 21-P | ||
248.2– 248.6 | 399.4– 400.1 | ![]() | Interchange | |||
249.1– 249.6 | 400.9– 401.7 | ![]() ![]() ![]() ![]() ![]() ![]() | Interchange; western end of SH 7 concurrency; western terminus of Bus. SH 7-N | |||
249.6 | 401.7 | ![]() ![]() | Future interchange; future eastern end of US 59 concurrency | |||
250.0– 250.4 | 402.3– 403.0 | 59S | ![]() ![]() ![]() ![]() ![]() | Interchange; eastern end of US 59 concurrency; southern terminus of Bus. US 59-F; signed as exit 59S eastbound only | ||
250.9 | 403.8 | ![]() ![]() | Northern terminus of FM 2863 | |||
251.8 | 405.2 | ![]() ![]() | Western end of FM 1275 concurrency | |||
251.9 | 405.4 | ![]() ![]() | Eastern end of FM 1275 concurrency | |||
252.5 | 406.4 | ![]() | ||||
253.7 | 408.3 | ![]() ![]() ![]() ![]() ![]() ![]() ![]() | Interchange; eastern end of SH 7/Loop 224 concurrency; eastern terminus of Bus. SH 21-P | |||
Oak Ridge | 256.9 | 413.4 | ![]() ![]() | |||
Melrose | 260.7 | 419.6 | ![]() ![]() | |||
Chireno | 269.5 | 433.7 | ![]() ![]() ![]() | |||
270.2 | 434.8 | ![]() ![]() | ||||
San Augustine | | 273.0 | 439.4 | ![]() ![]() | ||
Denning | 276.3 | 444.7 | ![]() ![]() | |||
| 277.8 | 447.1 | ![]() ![]() | |||
| 281.2 | 452.5 | ![]() ![]() | |||
San Augustine | 283.5 | 456.2 | ![]() | |||
283.9 | 456.9 | ![]() ![]() | ||||
284.3 | 457.5 | ![]() ![]() | West end of SH 147 overlap; west end of Loop 547 east overlap (eastbound only) | |||
284.3 | 457.5 | ![]() ![]() ![]() | east end of Loop 547 east overlap (eastbound only) | |||
284.5 | 457.9 | ![]() ![]() | ||||
284.9 | 458.5 | ![]() ![]() | East end of SH 147 overlap | |||
284.9 | 458.5 | ![]() ![]() ![]() ![]() ![]() | ||||
285.4 | 459.3 | ![]() ![]() | ||||
| 289.1 | 465.3 | ![]() ![]() | |||
Fords Corner | 291.7 | 469.4 | ![]() ![]() | |||
Sabine | | 293.6 | 472.5 | ![]() ![]() | ||
| 295.1 | 474.9 | ![]() ![]() | |||
Geneva | 297.4 | 478.6 | ![]() ![]() | |||
| 300.8 | 484.1 | ![]() ![]() | |||
Milam | 303.6 | 488.6 | ![]() | |||
| 307.5 | 494.9 | ![]() ![]() | |||
| 312.5 | 502.9 | ![]() ![]() | Louisiana state line (bridge over Sabine River (Toledo Bend Reservoir)) | ||
1.000 mi = 1.609 km; 1.000 km = 0.621 mi |
SH 21 has two business routes.
Location | Kurten |
---|---|
Length | 1.362 mi [12] (2.192 km) |
Existed | 2002–present |
Business State Highway 21-H (Bus. SH 21-H) is a 1.362-mile (2.192 km) long business route that runs through Kurten in central Texas. The route was formed from an old section of SH 21 on February 28, 2002, when SH 21 proper was moved onto a new bypass around Kurten. [12]
Location | Nacogdoches |
---|---|
Length | 4.170 mi [13] (6.711 km) |
Existed | 2018–present |
Business State Highway 21-P (Bus. SH 21-P) is a 4.170-mile (6.711 km) long business route that runs through Nacogdoches in eastern Texas. [13] The route was formed from an old section of SH 21, when the main highway was re-routed onto Loop 224 and US 59 on October 25, 2018. [14]
The entire route is in Nacogdoches, Nacogdoches County.
mi [13] | km | Destinations | Notes | ||
---|---|---|---|---|---|
0.000 | 0.000 | ![]() ![]() ![]() ![]() ![]() ![]() | Western terminus; road continues as SH 21 west | ||
1.341 | 2.158 | ![]() ![]() | Eastern terminus of FM 225 | ||
1.803 | 2.902 | ![]() ![]() ![]() ![]() ![]() | Western end of Bus. SH 7-N concurrency | ||
2.375 | 3.822 | ![]() | |||
2.487 | 4.002 | ![]() ![]() | Northern terminus of FM 2259 | ||
3.043 | 4.897 | ![]() ![]() ![]() | Eastern end of Bus. SH 7-N concurrency | ||
4.170 | 6.711 | ![]() ![]() ![]() ![]() ![]() ![]() | Eastern terminus; road continues as SH 21 east | ||
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
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State Highway 40 or William D. Fitch Parkway, runs from Farm to Market Road 2154 (FM 2154) to SH 6 in College Station, Texas. The current SH 40 was authorized in 1994. Signage for the highway went up March 2006 and the road was officially opened June 23, 2006.
State Highway OSR is a state highway in the U.S. state of Texas.
State Highway 1 was a state highway in the U.S. state of Texas. The highway traveled from Texarkana on the eastern border to El Paso on the western border, via Dallas and Fort Worth, Abilene, and Midland–Odessa. SH 1 was approximately 842 miles (1,355 km) long, and was one of the original 25 Texas state highways, which were designated on June 21, 1917. In 1920, the entire length of the highway was designated as part of the Bankhead Highway, a transcontinental Auto trail. In the Texas Department of Transportation's 1939 state highway renumbering, most of SH 1 was redesignated as U.S. Route 80, as well as U.S. Route 67, and others. Most of these highways were replaced by Interstate 10, Interstate 20, and Interstate 30. The only portion of SH 1 that existed after September 26, 1939, was a short spur located in Dallas. Texas State Highway 1 was officially cancelled on August 20, 1952. Due to the highway's historic value, a highway cannot be designated as State Highway 1 unless by the order of TxDOT Executive Director or by the Transportation Commission.
State Highway 3 is a state highway in the U.S. state of Texas that runs from Interstate 45 in Houston near William P. Hobby Airport to State Highway 146, 9.9 miles (15.9 km) northwest of Galveston. For most of its length, SH 3 parallels I-45 and runs alongside the former Galveston, Houston and Henderson Railroad lines.
State Highway 8 is a north–south state highway in the U.S. state of Texas that runs from the Red River, which serves as the boundary between Texas and Arkansas, north of New Boston to SH 155 at Linden.
State Highway 9 (SH 9) is a highway near Copperas Cove, Texas. It connects Interstate 14 (I-14), U.S. Route 190 (US 190), and U.S. Highway 190 Business outside of Copperas Cove to Farm to Market Road 116 (FM 116) on the north side of Copperas Cove. The highway opened on February 20, 2014 with a ribbon cutting at 2:00 p.m.
State Highway 18 is a state highway in the U.S. state of Texas maintained by the Texas Department of Transportation (TxDOT) that runs from Fort Stockton in western Texas to the New Mexico state line between Kermit and Jal, New Mexico. This route was designated in 1958 over the northern half of what was previously SH 82.
State Highway 19 is a state highway in Texas runs from Huntsville to Paris in east Texas.
State Highway 22 (SH 22) is a 111.215-mile-long (178.983 km) state highway in the U.S. state of Texas that travels from Corsicana to Hamilton in the north central part of the state.
State Highway 24 runs from Campbell to Paris in north Texas. It is a portion of the main route, along with Interstate 30, from Paris to the Dallas–Fort Worth metroplex.
State Highway 29 runs from 3.0 miles (4.8 km) south of Menard, Texas, east to SH 95 in Circleville via Mason, Llano, Burnet, Liberty Hill, and Georgetown in central Texas, United States.
State Highway 26 (SH 26) is a Texas state highway located completely within Tarrant County. SH 26 was designated on July 2, 1917. SH 26 terminates at Texas State Highway 183 and Texas State Highway 121. SH 26 was redesignated from its original location in East Texas to its current location in Tarrant County on April 4, 1980. SH 26 was the last of the original 26 state highways proposed in 1917.
State Highway 33 is a route that runs from U.S. Highways 60 and 83 south of Canadian and travels east to the Oklahoma state line, where it becomes State Highway 33.
State Highway 36 runs from Freeport to Abilene. It was designated as the 36th Division Memorial Highway between Cameron and Sealy by the Texas Legislature in 1985.
State Highway 37 is a state highway that runs from the Oklahoma state line near Albion to Mineola in the northeast corner of the state.
State Highway 43 is a Texas state highway that runs from Henderson to Atlanta.
State Highway 44 (SH 44) is a Texas state highway that runs from west of Encinal to Corpus Christi, Texas. This highway is also known as the Cesar Chavez Memorial Highway outside the city limits of Robstown, Banquete, Agua Dulce, Alice, and Corpus Christi in Nueces and Jim Hogg counties.
State Highway 110 is a state highway in the U.S. state of Texas that runs from Grand Saline to Rusk.
State Highway 81 is a Texas state highway that runs from Hillsboro to Grandview. It was designated in 1991 to replace U.S. Highway 81, which was decommissioned south of Fort Worth.