Texas State Highway 21

State Highway 21 marker

State Highway 21
Route information
Maintained by TxDOT
Length 272.7 mi[1] (438.9 km)
Existed April 4, 1917–present
Major junctions
West end I-35 at San Marcos
 

SH 130 Toll / US 183 in Mustang Ridge
US 290 near Paige
US 77 near Lincoln
SH 6 / US 190 in Bryan
I-45 / US 190 in Madisonville
US 287 in Crockett
US 69 in Alto

Future I-69 / US 59 in Nacogdoches

US 96 in San Augustine
East end LA 6 near Milam
Location
Counties Hays, Caldwell, Bastrop, Lee, Burleson, Brazos, Madison, Houston, Cherokee, Nacogdoches, San Augustine, Sabine
Highway system
← SH 20SH 22 →

State Highway 21, or 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.

History

SH 21 was one of the original 25 routes proposed in Texas on June 21, 1917 along a route from the Louisiana border 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, it extended to Lockhart. On July 15, 1935, this extension was cancelled, and SH 21 was rerouted to end in Lincoln.[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, SH 21 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.

Southbound 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]

Business routes

SH 21 has one business route.

Business State Highway 21-H is a Business Loop that runs through Kurten in central Texas. The road was bypassed in 2002 by SH 21.[11]

Major intersections

CountyLocationmikmDestinationsNotes
HaysSan Marcos0.0–
0.2		0.0–
0.32		 I-35 / SH 80 north – Wimberley, San Antonio, AustinI-35 exit 205; west end of SH 80 overlap
0.91.4 SH 80 south / SH 142 east – Lockhart, Luling, MartindaleInterchange; east end of SH 80 / SH 142 overlap
Caldwell–Hays
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 – LockhartWest end of FM 2001 overlap
Caldwell–Hays
county line		15.324.6 FM 2001 west – BudaEast end of FM 2001 overlap
CaldwellMustang Ridge18.0–
18.2		29.0–
29.3		 SH 130 Toll / US 183 – Austin, LockhartSH 130 exit 461/463
​19.030.6 FM 1854 south – Lytton Springs
Bastrop​25.541.0 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 – AustinInterchange; west end of SH 71 overlap
​37.860.8 FM 20 south / FM 969 west – Lockhartinterchange; west end of freeway
Bastrop39.162.9 SH 304 south / FM 969 west
40.064.4 Loop 150 east / Hasler Boulevard / Childers StreetInterchange; east end of freeway
42.167.8 SH 71 east / SH 95 south – SmithvilleInterchange; east end of SH 71 overlap; west end of SH 95 overlap
42.868.9 SH 95 north / Loop 150 west – Elgineast end of SH 95 overlap; west end of Loop 150 overlap
43.570.0 Loop 150 east – SmithvilleEast 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
​55.2–
55.4		88.8–
89.2		 US 290 – Austin, Paige, GiddingsInterchange
Lee​62.7100.9 FM 2440 east – Giddings
​67.4108.5 FM 1624 – Fedor, Giddings
​69.5111.8 US 77 – Giddings, Lexington, RockdaleInterchange
​74.1119.3 FM 3403 west
​77.8125.2 FM 141 south – Dime Box, Nails Creek State Park
Burleson​82.4132.6 FM 696 north – Lexington
​84.8136.5 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, Brenham
​94.0151.3 FM 2000
​98.3158.2 FM 1362 northWest end of FM 1362 overlap
Cooks Point99.0159.3 FM 1362 southEast end of FM 1362 overlap
​103.5166.6 FM 50 south – IndependenceWest end of FM 50 overlap
Brazos​105.0169.0 FM 50 north – MumfordEast end of FM 50 overlap
​106.5171.4 SH OSR east
​108.8175.1 SH 47 south – College Station, Texas A&M UniversityInterchange
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 (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, HoustonInterchange; west end of US 190 overlap
Wixon Valley121.3195.2 FM 2776 north
​124.2199.9
Bus. SH 21 east – Kurten
Kurten124.6200.5 FM 2038 – Kurten
125.5202.0
Bus. SH 21 west – Kurten
​130.7210.3 FM 974 west – Edge
Madison​134.2216.0 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)
​146.1235.1 FM 1372 west
​148.5239.0 FM 1452 westWest end of FM 1452 overlap
​148.8239.5 FM 1452 eastEast 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, HoustonI-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
​166.1267.3 FM 2548 west
Houston​169.8273.3 FM 2498 north
Mapleton171.4275.8 FM 3275 south
Austonio175.1281.8 FM 1280 westwest end of FM 1280 overlap
175.2282.0 FM 1280 easteast end of FM 1280 overlap
​180.0289.7 FM 2967 north – Porter Springs
​187.9302.4 SH 7 west – CentervilleWest 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 19East 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
​201.4324.1 FM 1733
​208.7335.9 FM 227 east – RatcliffWest end of FM 227 overlap
​209.3336.8 FM 227 west – Grapeland, AugustaEast end of FM 227 overlap
Weches210.8339.2 PR 44 – Mission Tejas State Park
Cherokee​220.2354.4 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
FM 2708 south
NacogdochesDouglass FM 225 southWest end of FM 225 overlap
FM 225 north – CushingEast end of FM 225 overlap
Nacogdoches
Future I-69 / US 59 to Loop 224 east / SH 7 east / SH 21		Interchange; U.S. 59 is the future Interstate 69
FM 225 west (Durst Street)

Bus. US 59 / SH 7 west (North Street / South Street) – Stephen F. Austin State University		West end of SH 7 overlap
FM 1275 (University Drive)
FM 2259 south (Shawnee Street)
SH 7 east (Center Road)East end of SH 7 overlap

Loop 224 to SH 7 / SH 21 west / Future I-69 / US 59 / US 259		Interchange
Oak Ridge FM 226 south – Woden, Etoile
Melrose FM 3276 north
Chireno FM 95 / Loop 34 south – Martinsville, Chireno
Loop 34 south – Chireno
San Augustine​ FM 1196 south
Denning FM 354 north
​ FM 3409 south
​ Spur 85 south
San Augustine US 96 – Center, Jasper
Loop 547 east (West Columbia Street)
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)
FM 3230 north (South Harrison Street) / Loop 547east end of Loop 547 east overlap (eastbound only)
FM 2213 south (South Liberty Street)
SH 147 north (South Clark Street)East end of SH 147 overlap
Loop 547 west (East Columbia Street) to SH 147 north
FM 3483 south
​ FM 3153 east
Fords Corner FM 1 south – Hemphill, Pineland, Bronson
Sabine​ Spur 35 south – McMahan Chapel
​ FM 3448 north
Geneva FM 330 north (Geneva Sexton Road)
​ SH 103 west – Lufkin
Milam SH 87 – Red Hill Lake, Center, Hemphill, Patricia Huffman Smith NASA Museum
​ FM 3121 south – Indian Mounds Wilderness
​ LA 6 east – ManyLouisiana state line (bridge over Sabine River (Toledo Bend Reservoir))
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

  1. ↑ Transportation Planning and Programming Division (n.d.). "State Highway No. 21". Highway Designation Files. Texas Department of Transportation. Retrieved August 30, 2013.
  2. ↑ (PDF) https://publicdocs.txdot.gov/minord/MinuteOrderDocLib/003676699.pdf. Missing or empty |title= (help)
  3. ↑ (PDF) https://publicdocs.txdot.gov/minord/MinuteOrderDocLib/003676752.pdf. Missing or empty |title= (help)
  4. ↑ (PDF) https://publicdocs.txdot.gov/minord/MinuteOrderDocLib/003676877.pdf. Missing or empty |title= (help)
  5. ↑ (PDF) https://publicdocs.txdot.gov/minord/MinuteOrderDocLib/003673871.pdf. Missing or empty |title= (help)
  6. ↑ (PDF) https://publicdocs.txdot.gov/minord/MinuteOrderDocLib/003673892.pdf. Missing or empty |title= (help)
  7. ↑ (PDF) https://publicdocs.txdot.gov/minord/MinuteOrderDocLib/003673898.pdf. Missing or empty |title= (help)
  8. ↑ (PDF) https://publicdocs.txdot.gov/minord/MinuteOrderDocLib/003676241.pdf. Missing or empty |title= (help)
  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.
  11. ↑ Transportation Planning and Programming Division (n.d.). "Business State Highway No. 21-H". Highway Designation Files. Texas Department of Transportation. Retrieved October 25, 2010.

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