Texas State Highway Loop 12

Starting in the east at I-30, Loop 12 goes north as Buckner Boulevard, following surface streets past White Rock Lake. Just north of White Rock Lake, it intersects Spur 244[2] and becomes Northwest Highway to the west; because there is an eastern and a western segment to this part of the road, at certain points the road signs read "East Northwest Highway". It continues west along surface streets over Central Expressway (U.S. Highway 75 (Texas), US 75) and the Dallas North Tollway and moves north of Bachman Lake and Dallas Love Field.

After crossing I-35E, Loop 12 moves south as a freeway, locally known as Walton Walker Boulevard, passing where Texas Stadium once sat at the interchanges with State Highway 114 (SH 114) and SH 183. The segment between I-35E (Stemmons Freeway) and Spur 408 is the only portion of Loop 12 that is freeway. It is also the only portion that leaves the Dallas city limits, as it runs through the eastern portion of Irving between where the road crosses the Elm Fork of the Trinity River (northern boundary, just north of the former site of Texas Stadium) and where it crosses the West Fork Trinity River (southern boundary). Loop 12 has TEXpress lanes (one in each direction) from State Highway 183 to I-35E TEXpress Lanes or I-35E which connects to the LBJ Express (I-635 TEXpress).

After intersecting I-30 for the second time, Loop 12 continues south, joining surface streets again east of Mountain Creek Lake at Mountain Creek Parkway and Patriot Parkway (or Spur 408, which provides a southwesterly freeway link to I-20). It continues to the southeast, turning east along Ledbetter Drive, just north of Dallas Executive Airport (formerly Red Bird Airport). It continues east, crossing US 67, I-35E for the second time, and I-45. At the intersection with US 175 and Murdock Road, Loop 12 turns north again as Buckner Boulevard all the way back to I-30. The portion between Bonnie View Rd. and US 175 is also known as Great Trinity Forest Way, as it passes across an undeveloped portion of the Trinity River and the Trinity River Audubon Center.

Loop 12 was designated on September 26, 1939, from US 175 across US 80 to the Buckner Orphans Home, and across US 67 to SH 114 at White Rock Lake as a renumbering of SH 40 Bypass. On April 23, 1942, Loop 12 was extended from US 175 to US 75. On August 3, 1943, Loop 12 was extended westward and northward to SH 183. On October 6, 1943, Loop 12 was extended northward and eastward back to SH 114 at White Rock Lake. On January 7, 1971, Loop 12 was rerouted on Spur 348 and part of the old location of SH 114; the rest of the old location of SH 114 became new Spur 348, and the old route of Loop 12 became Spur 482.

The entire route is in Dallas County.

Location	mi[3]	km	Destinations	Notes
Dallas	0.0	0.0	South Polk Street	Interchange
	0.4	0.64	US 67 (Marvin D. Love Freeway)	Interchange
	3.0	4.8	Ledbetter Drive / Cockrell Hill Road	Interchange; access from Cockrell Hill Road to Loop 12 is via Exchange Service Road
	5.5	8.9	Spur 408 (Patriot Parkway) to I-20 / Illinois Avenue / Mountain Creek Parkway	Interchange; south (counterclockwise) end of freeway; northbound access to Spur 408 is indirect via Illinois Avenue
	6.6	10.6	Keeneland Parkway
	7.4	11.9	SH 180 (Davis Street) / Jefferson Boulevard	State Highway 180 known as Davis Street; SH 180 is former US 80
	8.6	13.8	I-30 – Dallas, Fort Worth	Exit 38 on I-30 (Tom Landry Freeway)
	9.0	14.5	Frontage Road	Southbound (counterclockwise) exit and northbound (clockwise) exit
	9.6	15.4	Singleton Boulevard
Irving	11.1	17.9	Shady Grove Road
	11.6	18.7	SH 356 / Irving Boulevard
	12.7	20.4	Union Bower Road
	13.2	21.2	Grauwyler Road
	13.7	22.0	SH 183 – Fort Worth, Dallas	Airport Freeway; no southbound (counterclockwise) access to SH 183 east
	14.3	23.0	SH 114 – DFW Airport, Grapevine	John W. Carpenter Freeway
Dallas	15.8	25.4	I-35E east (US 77)	Exits 436A–B on I-35E (Stemmons Freeway); north (clockwise) end of freeway
			Spur 348 west (Northwest Highway)	Eastern terminus of Spur 348
	16.2	26.1	I-35E (US 77)	Exits 436A-B on I-35E (Stemmons Freeway)
	16.7– 17.0	26.9– 27.4	Spur 482 (Storey Lane) – Irving	Interchange
			Loop 354 (Harry Hines Boulevard)	Interchange
	18.7	30.1	Marsh Lane / Lemmon Avenue	Interchange
	21.3	34.3	Dallas North Tollway
University Park–Dallas line	21.8	35.1	SH 289 north (Preston Road)	Southern terminus of SH 289
Dallas	23.7	38.1	US 75	Exit 5A on US 75 (North Central Expressway)
	24.8	39.9	Skillman Street	Interchange
	27.0	43.5	Spur 244 east (Northwest Highway) – Garland
	27.1	43.6	East Lawther Drive	Interchange; southbound (clockwise) exit and northbound (counterclockwise) entrance
	27.5	44.3	Peavy Road / Mockingbird Lane	Interchange
	29.2	47.0	SH 78 (Garland Road)
	30.6	49.2	Ferguson Road	Interchange
	32.0	51.5	To I-30 (US 67) / US 80	Exit 53A on I-30 (R.L. Thornton Freeway); access via frontage roads
	34.0	54.7	Military Parkway	Interchange
	34.3	55.2	SH 352 (Scyene Road)	Interchange
	37.9	61.0	US 175 (C.F. Hawn Freeway)	Interchange
	41.5	66.8	Service Road	Interchange
	41.8	67.3	SH 310	Interchange with S.M. Wright Freeway
	42.2	67.9	I-45 – Houston, Dallas, McKinney	Exit 279 on I-45 (Julius Schepps Freeway)
	44.6	71.8	SH 342 south (Lancaster Road) – Lancaster	Northern terminus of SH 342
	46.6	75.0	I-35E (R.L. Thornton Freeway / US 77) – Waxahachie, Dallas	Exit 421 on I-35E
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Electronic toll collection       Incomplete access

• 
  Intersection of Loop 12 with US 75
• 
  Texas State Highway 289 Preston Road intersection Loop 12 Northwest Highway
• 
  Loop 12 Northwest Highway at Dallas North Tollway toward Douglas Ave
• 
  Loop 12 Northwest Highway at Dallas North Tollway toward Hathaway St

•  U.S. Roads portal
•  Texas portal

• Media related to Texas State Highway Loop 12 at Wikimedia Commons