INTERSTATE 40 IN TEXAS

In the U.S. state of Texas, Interstate 40 (abbreviated 'I-40') runs east-west through the panhandle in the northwest part of the state. The only large city it passes through is Amarillo, where it meets the north end of Interstate Highway 27.

The majority of the route of I-40 was upgraded on the spot from the old surface U.S. Highway 66. US 66 was decommissioned in Texas in 1985,^[2] leaving only I-40 on the cross-panhandle freeway.
I-40 in Texas is one of a few Interstate Highways with at-grade intersections. The westernmost part of I-40 in Texas, near the New Mexico border, lacks the frontage roads typical to Texas freeways, and several driveways for ranches directly intersect the main lanes of I-40, in violation of Interstate standards.

Contents

Major cities

Business routes and old alignments

Exit list

References

Major cities

Bolded cities are officially-designated control cities for signs.^[3]

★ 'Tucumcari, New Mexico'

★ Vega

★ 'Amarillo'

★ McLean

★ Shamrock

★ 'Oklahoma City, Oklahoma'

Business routes and old alignments

I-40 has seven business routes in Texas, all of which are old alignments of US 66. A number of other old alignments of US 66 are also present; most are marked on guide signs on I-40.
Business Interstate Highway 40-A (formerly Spur 504) is a Business Spur that runs from I-40 at Glenrio, just east of the New Mexico state line, southwest to the border. In New Mexico, the road forks - the later paved alignment (ca. 1952) has been cut by Interstate 40, and the earlier alignment west to San Jon is now a dirt road that had been paved when it was U.S. 66 prior to 1952 but the paving was later removed by Quay County, NM commissioners due to high maintenance costs and low traffic volumes. The old U.S. 66/I-40 Business Loop through Glenrio was bypassed in 1973 by I-40.^[4]
Business Interstate Highway 40-B (formerly Loop 550) is a Business Loop through Adrian. The road was bypassed ca. 1969 by I-40,^[5] and carried US 66 until its 1985 decommissioning.^[6]
Business Interstate Highway 40-C (formerly Loop 551) is a Business Loop through Vega. The road was bypassed ca. 1973 by I-40, and carried US 66 until its 1985 decommissioning.^[7]
Business Interstate Highway 40-D (formerly Loop 552) is a long Business Loop through Amarillo. An older alignment - Loop 279 - carried Business U.S. Highway 66. East of Amarillo, Farm to Market Road 2575 is old US 66, rerouted to today's Business I-40 in 1958^[8] by the construction of Amarillo International Airport. Present Business I-40 was bypassed in 1968 by I-40, and carried US 66 until its 1985 decommissioning.^[9]
Farm to Market Road 2161 and State Highway 207 carry old US 66 through Conway. The road was bypassed ca. 1966 by I-40, and carried US 66 until its 1985 decommissioning.^[10]
Business Interstate Highway 40-F (formerly Loop 554) is a Business Loop through Groom. The road was bypassed ca. 1980 by I-40, and carried US 66 until its 1985 decommissioning.^[11]
The short Loop 271, in addition to providing access to Farm to Market Road 291, is old US 66 through Alanreed. The road was bypassed in 1953 by US 66,^[12] but the bypass was not upgraded to a freeway until ca. 1982.
Business Interstate Highway 40-H (formerly Loop 555) is a Business Loop through McLean. The road was bypassed ca. 1984 by I-40, and carried US 66 until its 1985 decommissioning.^[13]
Business Interstate Highway 40-J (formerly Loop 556) is a Business Loop through Shamrock. The road was bypassed ca. 1973 by I-40, and carried US 66 until its 1985 decommissioning.^[14]
Spur 30 is a short route from I-40 just west of the Oklahoma state line southeast to the border. In Oklahoma, the road is unnumbered though Texola, though it picks up Interstate 40 Business at exit 5 to run through Erick. The road was bypassed ca. 1972 by I-40, and carried US 66 until 1976, when it was moved onto I-40 in the area.^[15]

Exit list

County	Location	# Mile	Destinations	Notes
continues into New Mexico
Deaf Smith		0	Business Interstate 40-A - Glenrio (Old US 66 west)
Oldham		15	Ivy Rd
		18
	Adrian	22		exit 23A westbound
		23		exit 23B westbound
		28
		35
	Vega	36
		37
		42	Everett Road
		49
Potter		54	Adkisson Road
		57
		60	Arnot Road
		62A	Hope Road, Helium Road	exit 62 eastbound
		62B		eastbound exit and westbound entrance
	Amarillo	64
		65	Coulter Drive
		66	Bell Street, Avondale Street, Wolflin Avenue
		67	Western Street, Avondale Street
		68A	Julian Boulevard, Paramount Boulevard
		68B	Georgia Street, Crockett Street
		69A	Crockett Street	westbound exit and eastbound entrance
		69B	Washington Street – Amarillo College	exit 69 eastbound
		70
			Begin / concurrency
		71	Ross-Osage Street, Arthur Street
		72A
		72B
		73	Eastern Street, Bolton Street
		74	Whitaker Road
		75
		76	– International Airport
		77
		78
			End / concurrency
		80	– Amarillo College East Campus
		81
Carson		85	Durrett Road	eastbound exit only
		85		no eastbound exit
		87
		89
		96
		98		westbound exit and eastbound entrance
		105
		109
		110
		112
	Groom	113
Gray		114
Donley		121
			Begin / concurrency
		124
			End / concurrency
		128	– Lake McClellan Recreation Area
Gray		132	Johnson Ranch Road
	Alanreed	135
		141		eastbound exit and westbound entrance
	McLean	142
		143		westbound exit and eastbound entrance
		146	County Line Road
Wheeler
		148
		152
		157
		161		eastbound exit and westbound entrance
	Shamrock	163
		164
		167
		169
		176	– Texola, OK	eastbound exit and westbound entrance
continues into Oklahoma

References

1. Texas Department of Transportation, Highway Designation File - Interstate Highway 40
2. Texas Department of Transportation, Highway Designation File - U.S. Highway No. 66
3. List of Control Cities for Use in Guide Signs on Interstate Highways
4. Texas Department of Transportation, Highway Designation File - State Highway Spur 504
5. National Bridge Inventory
6. Texas Department of Transportation, Highway Designation File - State Highway Loop 550
7. Texas Department of Transportation, Highway Designation File - State Highway Loop 551
8. Texas Department of Transportation, Highway Designation File - Farm to Market Road 2575
9. Texas Department of Transportation, Highway Designation File - State Highway Loop 552
10. Texas Department of Transportation, Highway Designation File - Farm to Market Road 2161
11. Texas Department of Transportation, Highway Designation File - State Highway Loop 554
12. Texas Department of Transportation, Highway Designation File - State Highway Loop 271
13. Texas Department of Transportation, Highway Designation File - State Highway Loop 555
14. Texas Department of Transportation, Highway Designation File - State Highway Loop 556
15. Texas Department of Transportation, Highway Designation File - State Highway Spur 30