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.

State Highway 21 marker
State Highway 21
Map
Route information
Maintained by TxDOT
Length312.50 mi[1] (502.92 km)
ExistedApril 4, 1917–present
Major junctions
West end I-35 at San Marcos
Major intersections
East end LA 6 near Milam
Location
CountryUnited States
StateTexas
CountiesHays, Caldwell, Bastrop, Lee, Burleson, Brazos, Madison, Houston, Cherokee, Nacogdoches, San Augustine, Sabine
Highway system
SH 20 SH 22

History

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Historic SH 21

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.

 
Westbound Highway 21 through the "Lost Pines" north of Bastrop.

On June 24, 2010, the SH 21 designation was extended along SH 80 and SH 142 to end at I-35.[9][10]

Major intersections

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CountyLocationmi[11]kmExitDestinationsNotes
HaysSan Marcos0.0–
0.2
0.0–
0.32
  
 
I-35 / SH 80 north – Wimberley, San Antonio, Austin
I-35 exit 205; west end of SH 80 overlap
0.91.4 
 
 
 
SH 80 south / SH 142 east – Lockhart, Luling, Martindale
Interchange; east end of SH 80 / SH 142 overlap
CaldwellHays
county line
6.410.3 
 
FM 1966 east – Maxwell
7.812.6 
 
RM 150 west – Kyle
HaysUhland9.315.0 
 
 
 
FM 2720 south to SH 142
CaldwellNiederwald13.922.4 
 
FM 2001 east – Lockhart
West end of FM 2001 overlap
CaldwellHays
county line
15.324.6 
 
FM 2001 west – Buda
East end of FM 2001 overlap
CaldwellMustang Ridge18.0–
18.2
29.0–
29.3
   SH 130 Toll / US 183 – Waco, Austin, Lockhart, Seguin, San AntonioSH 130 exit 461/463
19.030.6 
 
FM 1854 south – Lytton Springs
BastropSaint Mary's Colony25.541.0  FM 812 – Elroy, Red RockInterchange
Cedar Creek30.348.8  FM 535 – Rosanky, Rockne
34.555.5 
 
FM 1209 north
35.857.6 
 
SH 71 west – Austin
Interchange; west end of SH 71 overlap
Bastrop37.860.8 
 
 
 
FM 20 south / FM 969 west – Lockhart
interchange; west end of freeway
39.162.9 
 
 
 
SH 304 south / FM 969 west
40.064.4 
 
Loop 150 east / Hasler Boulevard / Childers Street
Interchange; east end of freeway
42.167.8 
 
 
 
SH 71 east / SH 95 south – Smithville
Interchange; east end of SH 71 overlap; west end of SH 95 overlap
42.868.9 
 
 
 
SH 95 north / Loop 150 west – Elgin
east end of SH 95 overlap; west end of Loop 150 overlap
43.570.0 
 
Loop 150 east – Smithville
East end of Loop 150 overlap
43.670.2  PR 1A – Bastrop State Park
Circle D-KC Estates48.678.2 
 
FM 1441 west – Lake Bastrop, Lost Pines Scout Reservation
Paige55.2–
55.4
88.8–
89.2
  US 290 – Austin, Paige, GiddingsInterchange
Lee62.7100.9 
 
FM 2440 east – Giddings
Lincoln67.4108.5  FM 1624 – Fedor, Giddings
69.5111.8  US 77 – Giddings, Lexington, RockdaleInterchange
74.1119.3 
 
FM 3403 west
Old Dime Box77.8125.2 
 
FM 141 south – Dime Box, Nails Creek State Park
Burleson82.4132.6 
 
FM 696 north – Lexington
San Antonio Prairie84.8136.5 
 
FM 60 south – Deanville, Lake Somerville State Park
88.2141.9 
 
FM 908 north – Rockdale
Caldwell91.4147.1  FM 975 (Banks Street)
92.4148.7  Loop 83 (Main Street) – Business District
92.6149.0  SH 36 – Cameron, Milano, Somerville, Brenham
94.0151.3  FM 2000
98.3158.2 
 
FM 1362 north
West end of FM 1362 overlap
Cooks Point99.0159.3 
 
FM 1362 south
East end of FM 1362 overlap
103.5166.6 
 
FM 50 south – Independence
West end of FM 50 overlap
Brazos105.0169.0 
 
FM 50 north – Mumford
East end of FM 50 overlap
106.5171.4 
 
SH OSR east
108.8175.1 
 
SH 47 south – College Station, Texas A&M University
Interchange
Bryan112.9–
113.0
181.7–
181.9
  FM 2818 (North Harvey Mitchell Parkway) – College StationInterchange
114.2183.8 
 
 
 
FM 158 east (West William J. Bryan Parkway) / FM 1687 west (Sandy Point Road) – Huntsville, Lake Bryan, Hamilton Unit
115.5185.9 
 
Bus. SH 6-R (Texas Avenue) – Hearne, College Station, Downtown Bryan
115.8186.4 
 
FM 974 east (Tabor Road) – Tabor
116.4–
116.5
187.3–
187.5
 
 
  US 190 west / SH 6 – Waco, Houston
Interchange; west end of US 190 overlap
Wixon Valley121.3195.2 
 
FM 2776 north
Kurten124.2199.9 
 
 
Bus. SH 21-H east – Kurten
124.6200.5  FM 2038 – Kurten
125.5202.0 
 
 
Bus. SH 21-H west – Kurten
130.7210.3 
 
FM 974 west – Edge
Madison134.2216.0 
 
FM 2865 north
North Zulch137.9221.9  FM 39 – Normangee, IolaInterchange
138.1222.3 
 
Loop 160 east (Trinity Avenue)
138.6223.1 
 
Loop 160 west (Fifth Street)
Cottonwood146.1235.1 
 
FM 1372 west
148.5239.0 
 
FM 1452 west
West end of FM 1452 overlap
148.8239.5 
 
FM 1452 east
East end of FM 1452 overlap
Madisonville150.4242.0 
 
FM 978 west (Woodrow Street)
150.7242.5 
 
Spur 174 south (Madison Street)
150.9242.9  
 
 
 
 
SH 75 (May Street) to I-45 north / SH 90 – Buffalo, Huntsville, Navasota
152.9–
153.0
246.1–
246.2
  
 
I-45 / US 190 east – Dallas, Houston
I-45 exit 142; east end of US 190 overlap
Jenkins154.5248.6 
 
FM 2346 north
155.6250.4 
 
FM 1428 east
160.8258.8 
 
FM 2158 south
Midway161.8260.4 
 
SH OSR west – Normangee
161.9260.6 
 
FM 247 south – Ferguson Unit
162.2261.0 
 
 
 
FM 2548 east / FM 3060 north
Antioch166.1267.3 
 
FM 2548 west
HoustonSand Ridge169.8273.3 
 
FM 2498 north
Mapleton171.4275.8 
 
FM 3275 south
Austonio175.1281.8 
 
FM 1280 west
west end of FM 1280 overlap
175.2282.0 
 
FM 1280 east
east end of FM 1280 overlap
Cooper180.0289.7 
 
FM 2967 north – Porter Springs
187.9302.4 
 
SH 7 west – Centerville
West end of SH 7 overlap
Crockett188.3303.0  Loop 304 (truck route)
189.0304.2  
 
FM 229 to FM 2076
189.6–
189.7
305.1–
305.3
  
 
  US 287 / SH 7 east / SH 19
East end of SH 7 overlap; traffic circle around Houston County Courthouse
189.8305.5 
 
FM 2022 north (North Sixth Street)
191.0307.4  Loop 304 (truck route)
193.6311.6 
 
FM 3187 south
Belott201.4324.1  FM 1733
208.7335.9 
 
FM 227 east – Ratcliff
West end of FM 227 overlap
209.3336.8 
 
FM 227 west – Grapeland, Augusta
East end of FM 227 overlap
Weches210.8339.2  PR 44 – Mission Tejas State Park
CherokeeWeeping Mary220.2354.4 
 
FM 220 south – Cold Springs
Alto223.0358.9 
 
SH 294 west (Elkhart Street) – Elkhart
223.2359.2  US 69 (Marcus Street) – Rusk, Lufkin
Linwood228.0366.9 
 
FM 241 north – Salem
228.2367.3 
 
FM 2708 south
NacogdochesDouglass234.7377.7 
 
FM 225 south
West end of FM 225 overlap
234.7377.7 
 
FM 225 north – Cushing
East end of FM 225 overlap
Nacogdoches247.3398.0 
 
 
 
 
 
US 59 north / Loop 224 east (Stallings Drive) to SH 7
 
 
 
Bus. SH 21-P east
Interchange; western end of US 59/Loop 224 concurrency; western terminus of Bus. SH 21-P
248.2–
248.6
399.4–
400.1
  FM 225 (Durst Street)Interchange
249.1–
249.6
400.9–
401.7
 
 
 
 
 
  SH 7 west (South Fredonia Street) / Bus. SH 7-N east – Crockett
Interchange; western end of SH 7 concurrency; western terminus of Bus. SH 7-N
249.6401.7 
 
US 59 south
Future interchange; future eastern end of US 59 concurrency
250.0–
250.4
402.3–
403.0
59S 
 
 
 
 
US 59 south / Bus. US 59-F north (South Street) – Lufkin
Interchange; eastern end of US 59 concurrency; southern terminus of Bus. US 59-F; signed as exit 59S eastbound only
250.9403.8 
 
FM 2863 south (New Press Road) / Hunter Street
Northern terminus of FM 2863
251.8405.2 
 
FM 1275 north (South University Drive)
Western end of FM 1275 concurrency
251.9405.4 
 
FM 1275 south (South Rayburn Drive)
Eastern end of FM 1275 concurrency
252.5406.4  FM 2259 (Woden Road)
253.7408.3 
 
 
 
Loop 224 west / SH 7 east
 
 
 
Bus. SH 21-P west (Main Street)
Interchange; eastern end of SH 7/Loop 224 concurrency; eastern terminus of Bus. SH 21-P
Oak Ridge256.9413.4 
 
FM 226 south – Woden, Etoile
Melrose260.7419.6 
 
FM 3276 north
Chireno269.5433.7  
 
FM 95 / Loop 34 south – Martinsville, Chireno
270.2434.8 
 
Loop 34 south – Chireno
San Augustine273.0439.4 
 
FM 1196 south
Denning276.3444.7 
 
FM 354 north
277.8447.1 
 
FM 3409 south
281.2452.5 
 
Spur 85 south
San Augustine283.5456.2  US 96 – Center, Jasper
283.9456.9 
 
Loop 547 east (West Columbia Street)
284.3457.5 
 
SH 147 south (South Broadway Street) – El Camino Real Tourist Center (Mission Dolores)
West end of SH 147 overlap; west end of Loop 547 east overlap (eastbound only)
284.3457.5 
 
  FM 3230 north (South Harrison Street) / Loop 547
east end of Loop 547 east overlap (eastbound only)
284.5457.9 
 
FM 2213 south (South Liberty Street)
284.9458.5 
 
SH 147 north (South Clark Street)
East end of SH 147 overlap
284.9458.5 
 
 
 
 
Loop 547 west (East Columbia Street) to SH 147 north
285.4459.3 
 
FM 3483 south
289.1465.3 
 
FM 3153 east
Fords Corner291.7469.4 
 
FM 1 south – Hemphill, Pineland, Bronson
Sabine293.6472.5 
 
Spur 35 south – McMahan Chapel
295.1474.9 
 
FM 3448 north
Geneva297.4478.6 
 
FM 330 north (Geneva Sexton Road)
300.8484.1 
 
SH 103 west – Lufkin
Milam303.6488.6  SH 87 – Red Hill Lake, Center, Hemphill, Patricia Huffman Smith NASA Museum
307.5494.9 
 
FM 3121 south – Indian Mounds Wilderness
312.5502.9 
 
LA 6 east – Many
Louisiana state line (bridge over Sabine River (Toledo Bend Reservoir))
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Business routes

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SH 21 has two business routes.

Kurten business route

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Business State Highway 21-H
LocationKurten
Length1.362 mi[12] (2.192 km)
Existed2002–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]

Nacogdoches business route

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Business State Highway 21-P
LocationNacogdoches
Length4.170 mi[13] (6.711 km)
Existed2018–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]

Major intersections

The entire route is in Nacogdoches, Nacogdoches County.

mi[13]kmDestinationsNotes
0.0000.000  
 
  US 59 / SH 21 east / Loop 224 (Stallings Drive)
 
 
SH 21 west (Douglass Road)
Western terminus; road continues as SH 21 west
1.3412.158 
 
FM 225 west (Durst Street)
Eastern terminus of FM 225
1.8032.902 
 
 
 
 
Bus. US 59 / Bus. SH 7-N west (North Street/South Street)
Western end of Bus. SH 7-N concurrency
2.3753.822  FM 1275 (University Drive)
2.4874.002 
 
FM 2259 south (Shawnee Street)
Northern terminus of FM 2259
3.0434.897 
 
 
Bus. SH 7-N east (Center Road)
Eastern end of Bus. SH 7-N concurrency
4.1706.711  
 
  SH 7 (Stallings Drive) / SH 21 west / Loop 224
 
 
SH 21 east (Main Street)
Eastern terminus; road continues as SH 21 east
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

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  1. ^ Transportation Planning and Programming Division (n.d.). "State Highway No. 21". Highway Designation Files. Texas Department of Transportation. Retrieved August 30, 2013.
  2. ^ "Minutes" (PDF). publicdocs.txdot.gov. Texas Department of Transportation. June 21, 1917. Archived (PDF) from the original on October 23, 2017. Retrieved 30 April 2023.
  3. ^ "Minutes" (PDF). publicdocs.txdot.gov. Texas Department of Transportation. February 18, 1918. Archived (PDF) from the original on October 23, 2017. Retrieved 30 April 2023.
  4. ^ "Minutes" (PDF). publicdocs.txdot.gov. Texas Department of Transportation. July 16, 1923. Archived (PDF) from the original on October 27, 2017. Retrieved 30 April 2023.
  5. ^ "Minutes" (PDF). publicdocs.txdot.gov. Texas Department of Transportation. July 15, 1935. Archived (PDF) from the original on October 20, 2017. Retrieved 30 April 2023.
  6. ^ "Minutes" (PDF). publicdocs.txdot.gov. Texas Department of Transportation. October 19, 1936. Archived (PDF) from the original on February 18, 2018. Retrieved 30 April 2023.
  7. ^ "Minutes" (PDF). publicdocs.txdot.gov. Texas Department of Transportation. May 17, 1937. Archived (PDF) from the original on February 19, 2018. Retrieved 30 April 2023.
  8. ^ "Minutes" (PDF). publicdocs.txdot.gov. Texas Department of Transportation. February 21, 1938. Archived (PDF) from the original on October 21, 2017. Retrieved 30 April 2023.
  9. ^ "Texas Transportation Commission Meeting Minutes, June 24, 2010" (PDF). Texas Transportation Commission. pp. 226–227. Retrieved August 30, 2013.
  10. ^ Transportation Planning and Programming Division (2014). Texas County Mapbook (PDF) (Map) (2014 ed.). 1:120,000. Texas Department of Transportation. p. 368. Retrieved December 1, 2014.[needs update]
  11. ^ "Map of Texas State Highway 21" (Map). Google Maps. Retrieved July 29, 2022.
  12. ^ a b Transportation Planning and Programming Division (n.d.). "Business State Highway No. 21-H". Highway Designation Files. Texas Department of Transportation. Retrieved October 25, 2010.
  13. ^ a b c Texas Department of Transportation (2022). "Statewide Planning Map LRS Readout (ArcGIS)". Retrieved July 29, 2022.
  14. ^ Texas Department of Transportation (October 25, 2018). "Minute Orders of the Regular Meeting of the Texas Transportation Commission" (PDF). Austin: Texas Department of Transportation. Retrieved 30 April 2023.
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