Texas State Highway 21

"TX 21" redirects here. The term may also refer to Texas's 21st congressional district.

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
Route information
Maintained by TxDOT
Length	312.50 mi[1] (502.92 km)
Existed	April 4, 1917–present
Major junctions
West end	I-35 at San Marcos
Major intersections	US 183 / SH 130 Toll in Mustang Ridge US 290 in Paige US 77 near Lincoln US 190 / SH 6 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
Country	United States
State	Texas
Counties	Hays, Caldwell, Bastrop, Lee, Burleson, Brazos, Madison, Houston, Cherokee, Nacogdoches, San Augustine, Sabine
Highway system
Highways in Texas Interstate US State Toll Loops Spurs FM/RM Park Rec
← SH 20 → SH 22

History

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

County	Location	mi[11]	km	Exit	Destinations	Notes
Hays	San Marcos	0.0– 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
		0.9	1.4		SH 80 south / SH 142 east – Lockhart, Luling, Martindale	Interchange; east end of SH 80 / SH 142 overlap
Caldwell–Hays county line	​	6.4	10.3		FM 1966 east – Maxwell
	​	7.8	12.6		RM 150 west – Kyle
Hays	Uhland	9.3	15.0		FM 2720 south to SH 142
Caldwell	Niederwald	13.9	22.4		FM 2001 east – Lockhart	West end of FM 2001 overlap
Caldwell–Hays county line		15.3	24.6		FM 2001 west – Buda	East end of FM 2001 overlap
Caldwell	Mustang Ridge	18.0– 18.2	29.0– 29.3		SH 130 Toll / US 183 – Waco, Austin, Lockhart, Seguin, San Antonio	SH 130 exit 461/463
		19.0	30.6		FM 1854 south – Lytton Springs
Bastrop	Saint Mary's Colony	25.5	41.0		FM 812 – Elroy, Red Rock	Interchange
	Cedar Creek	30.3	48.8		FM 535 – Rosanky, Rockne
	​	34.5	55.5		FM 1209 north
	​	35.8	57.6		SH 71 west – Austin	Interchange; west end of SH 71 overlap
	Bastrop	37.8	60.8		FM 20 south / FM 969 west – Lockhart	interchange; west end of freeway
		39.1	62.9		SH 304 south / FM 969 west
		40.0	64.4		Loop 150 east / Hasler Boulevard / Childers Street	Interchange; east end of freeway
		42.1	67.8		SH 71 east / SH 95 south – Smithville	Interchange; east end of SH 71 overlap; west end of SH 95 overlap
		42.8	68.9		SH 95 north / Loop 150 west – Elgin	east end of SH 95 overlap; west end of Loop 150 overlap
		43.5	70.0		Loop 150 east – Smithville	East end of Loop 150 overlap
		43.6	70.2		PR 1A – Bastrop State Park
	Circle D-KC Estates	48.6	78.2		FM 1441 west – Lake Bastrop, Lost Pines Scout Reservation
	Paige	55.2– 55.4	88.8– 89.2		US 290 – Austin, Paige, Giddings	Interchange
Lee	​	62.7	100.9		FM 2440 east – Giddings
	Lincoln	67.4	108.5		FM 1624 – Fedor, Giddings
	​	69.5	111.8		US 77 – Giddings, Lexington, Rockdale	Interchange
	​	74.1	119.3		FM 3403 west
	Old Dime Box	77.8	125.2		FM 141 south – Dime Box, Nails Creek State Park
Burleson	​	82.4	132.6		FM 696 north – Lexington
	San Antonio Prairie	84.8	136.5		FM 60 south – Deanville, Lake Somerville State Park
	​	88.2	141.9		FM 908 north – Rockdale
	Caldwell	91.4	147.1		FM 975 (Banks Street)
		92.4	148.7		Loop 83 (Main Street) – Business District
		92.6	149.0		SH 36 – Cameron, Milano, Somerville, Brenham
	​	94.0	151.3		FM 2000
	​	98.3	158.2		FM 1362 north	West end of FM 1362 overlap
	Cooks Point	99.0	159.3		FM 1362 south	East end of FM 1362 overlap
	​	103.5	166.6		FM 50 south – Independence	West end of FM 50 overlap
Brazos	​	105.0	169.0		FM 50 north – Mumford	East end of FM 50 overlap
	​	106.5	171.4		SH OSR east
	​	108.8	175.1		SH 47 south – College Station, Texas A&M University	Interchange
	Bryan	112.9– 113.0	181.7– 181.9		FM 2818 (North Harvey Mitchell Parkway) – College Station	Interchange
		114.2	183.8		FM 158 east (West William J. Bryan Parkway) / FM 1687 west (Sandy Point Road) – Huntsville, Lake Bryan, Hamilton Unit
		115.5	185.9		Bus. SH 6-R (Texas Avenue) – Hearne, College Station, Downtown Bryan
		115.8	186.4		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 Valley	121.3	195.2		FM 2776 north
	Kurten	124.2	199.9		Bus. SH 21-H east – Kurten
		124.6	200.5		FM 2038 – Kurten
		125.5	202.0		Bus. SH 21-H west – Kurten
	​	130.7	210.3		FM 974 west – Edge
Madison	​	134.2	216.0		FM 2865 north
	North Zulch	137.9	221.9		FM 39 – Normangee, Iola	Interchange
		138.1	222.3		Loop 160 east (Trinity Avenue)
		138.6	223.1		Loop 160 west (Fifth Street)
	Cottonwood	146.1	235.1		FM 1372 west
	​	148.5	239.0		FM 1452 west	West end of FM 1452 overlap
	​	148.8	239.5		FM 1452 east	East end of FM 1452 overlap
	Madisonville	150.4	242.0		FM 978 west (Woodrow Street)
		150.7	242.5		Spur 174 south (Madison Street)
		150.9	242.9		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
	Jenkins	154.5	248.6		FM 2346 north
	​	155.6	250.4		FM 1428 east
	​	160.8	258.8		FM 2158 south
	Midway	161.8	260.4		SH OSR west – Normangee
		161.9	260.6		FM 247 south – Ferguson Unit
		162.2	261.0		FM 2548 east / FM 3060 north
	Antioch	166.1	267.3		FM 2548 west
Houston	Sand Ridge	169.8	273.3		FM 2498 north
	Mapleton	171.4	275.8		FM 3275 south
	Austonio	175.1	281.8		FM 1280 west	west end of FM 1280 overlap
		175.2	282.0		FM 1280 east	east end of FM 1280 overlap
	Cooper	180.0	289.7		FM 2967 north – Porter Springs
	​	187.9	302.4		SH 7 west – Centerville	West end of SH 7 overlap
	Crockett	188.3	303.0		Loop 304 (truck route)
		189.0	304.2		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
		189.8	305.5		FM 2022 north (North Sixth Street)
		191.0	307.4		Loop 304 (truck route)
	​	193.6	311.6		FM 3187 south
	Belott	201.4	324.1		FM 1733
	​	208.7	335.9		FM 227 east – Ratcliff	West end of FM 227 overlap
	​	209.3	336.8		FM 227 west – Grapeland, Augusta	East end of FM 227 overlap
	Weches	210.8	339.2		PR 44 – Mission Tejas State Park
Cherokee	Weeping Mary	220.2	354.4		FM 220 south – Cold Springs
	Alto	223.0	358.9		SH 294 west (Elkhart Street) – Elkhart
		223.2	359.2		US 69 (Marcus Street) – Rusk, Lufkin
	Linwood	228.0	366.9		FM 241 north – Salem
		228.2	367.3		FM 2708 south
Nacogdoches	Douglass	234.7	377.7		FM 225 south	West end of FM 225 overlap
		234.7	377.7		FM 225 north – Cushing	East end of FM 225 overlap
	Nacogdoches	247.3	398.0		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
		249.6	401.7		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
		250.9	403.8		FM 2863 south (New Press Road) / Hunter Street	Northern terminus of FM 2863
		251.8	405.2		FM 1275 north (South University Drive)	Western end of FM 1275 concurrency
		251.9	405.4		FM 1275 south (South Rayburn Drive)	Eastern end of FM 1275 concurrency
		252.5	406.4		FM 2259 (Woden Road)
		253.7	408.3		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 Ridge	256.9	413.4		FM 226 south – Woden, Etoile
	Melrose	260.7	419.6		FM 3276 north
	Chireno	269.5	433.7		FM 95 / Loop 34 south – Martinsville, Chireno
		270.2	434.8		Loop 34 south – Chireno
San Augustine	​	273.0	439.4		FM 1196 south
	Denning	276.3	444.7		FM 354 north
	​	277.8	447.1		FM 3409 south
	​	281.2	452.5		Spur 85 south
	San Augustine	283.5	456.2		US 96 – Center, Jasper
		283.9	456.9		Loop 547 east (West Columbia Street)
		284.3	457.5		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)
		284.3	457.5		FM 3230 north (South Harrison Street) / Loop 547	east end of Loop 547 east overlap (eastbound only)
		284.5	457.9		FM 2213 south (South Liberty Street)
		284.9	458.5		SH 147 north (South Clark Street)	East end of SH 147 overlap
		284.9	458.5		Loop 547 west (East Columbia Street) to SH 147 north
		285.4	459.3		FM 3483 south
	​	289.1	465.3		FM 3153 east
	Fords Corner	291.7	469.4		FM 1 south – Hemphill, Pineland, Bronson
Sabine	​	293.6	472.5		Spur 35 south – McMahan Chapel
	​	295.1	474.9		FM 3448 north
	Geneva	297.4	478.6		FM 330 north (Geneva Sexton Road)
	​	300.8	484.1		SH 103 west – Lufkin
	Milam	303.6	488.6		SH 87 – Red Hill Lake, Center, Hemphill, Patricia Huffman Smith NASA Museum
	​	307.5	494.9		FM 3121 south – Indian Mounds Wilderness
	​	312.5	502.9		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

SH 21 has two business routes.

Kurten business route

Business State Highway 21-H
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]

Nacogdoches business route

Business State Highway 21-P
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]

Major intersections

The entire route is in Nacogdoches, Nacogdoches County.

mi[13]	km	Destinations	Notes
0.000	0.000	US 59 / SH 21 east / Loop 224 (Stallings Drive) SH 21 west (Douglass Road)	Western terminus; road continues as SH 21 west
1.341	2.158	FM 225 west (Durst Street)	Eastern terminus of FM 225
1.803	2.902	Bus. US 59 / Bus. SH 7-N west (North Street/South Street)	Western end of Bus. SH 7-N concurrency
2.375	3.822	FM 1275 (University Drive)
2.487	4.002	FM 2259 south (Shawnee Street)	Northern terminus of FM 2259
3.043	4.897	Bus. SH 7-N east (Center Road)	Eastern end of Bus. SH 7-N concurrency
4.170	6.711	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       Concurrency terminus

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. "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. 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. 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.

External links

• Media related to Texas State Highway 21 at Wikimedia Commons