Top 100 Busiest Roadways in Texas

Below is a list of the top 100 most congested roadways in Texas using data from 2021. The data source here is the TxDOT. The Texas
Legislature mandates that the Texas Department of Transportation produce this report each year. While heavy traffic congestion is often a by-product of economic growth (which is why Austin traffic will continue to get worse in the near future), for many Texans, attempting to drive from one location to another is a major problem, especially when it’s on a highly congested stretch of road during peak traffic times.

The table below measures congestion by the number of extra hours of travel time experienced by drivers on each section of road analyzed. The data changes from year to year, and different things impact the data

Busiest Roadways in Dallas

Dallas has many roadways in the top 100 list. The worst in Dallas County is Woodall Rogers Freeway / SS 366, from US 75 to N. Beckley Ave. This is a 1.5 mile stretch of highway where the annual delay per mile (person-hours) is 623,532!

Busiest Roadways in Houston

Houston, and Harris County in particular, has four of the top ten of the most congested roadways in the state of Texas. W Loop Freeway and IH 610 (from Katy Freeway/IH 10/ US 90 to Southwest Freeway / US 59 / IH 69 tops the list with 919,427 annual delay per mile!.

Busiest Roadways in San Antonio

San Antonio has a cluster of highly congested roadways, as you can see above. Charles West Anderson Loop & SL 1604 N ranks #35 with an annual delay per mile average of 145,605.

Busiest Roadways in Austin

The IH 35 from the US 290 N / SS 69 to Ben White Blvd / SH 71 is a 7.85 mile segment that is the 2nd worst in the entire state of Texas, with an annual delay per mile here of 639,389.

Top 100 List

2021 Rank	County	Road Name	Annual Delay per Mile (person-hours)
1	Harris	W Loop Fwy / IH 610	919,427
2	Travis	IH 35	639,389
3	Harris	Southwest Fwy / IH 69 / US 59	624,373
4	Dallas	Woodall Rodgers Fwy / SS 366	623,532
5	Harris	Eastex Fwy / IH 69 / US 59	376,452
6	Harris	Gulf Fwy / IH 45	375,413
7	Dallas	US 75	370,025
8	Dallas	Stemmons Fwy / IH 35E / US 77	365,539
9	Tarrant	North Fwy / IH 35W / US 287	345,097
10	Dallas	Lyndon B. Johnson Fwy / IH 635	341,008
11	Harris	North Fwy / IH 45	304,230
12	Dallas	IH 345 / US 75 / IH 45	289,083
13	Dallas	E R. L. Thornton Fwy / IH 30 / US 67	287,514
14	Harris	N Loop W Fwy / IH 610	279,982
15	Dallas	Lyndon B. Johnson Fwy / IH 635	271,340
16	Harris	Katy Fwy / IH 10 / US 90	249,965
17	Harris	South Fwy / SH 288	237,844
18	Harris	Southwest Fwy / IH 69 / US 59	227,563
19	Cameron	Boca Chica Blvd / SH 48	211,602
20	Harris	Katy Fwy / IH 10 / US 90	207,255
21	Harris	IH 10 / US 90	204,117
22	Travis	IH 35	198,668
23	Dallas	Lyndon B. Johnson Fwy / IH 635	197,740
24	Tarrant	IH 35W	195,975
25	Harris	North Fwy / IH 45	192,237
26	Dallas	US 75	176,692
27	Harris	Gulf Fwy / IH 45	176,247
28	Webb	Mann Rd / Springfield Ave	175,300
29	Harris	Katy Fwy / IH 10 / US 90	173,696
30	Harris	S Loop E Fwy / IH 610	171,329
31	Williamson	IH 35	162,152
32	Dallas	Airport Fwy / SH 183	161,767
33	Cameron	International Blvd / SH 4	155,515
34	Tarrant	North Fwy / IH 35W / US 287	150,240
35	Bexar	Charles West Anderson Loop / SL 1604 N	145,605
36	Travis	US 290 / SH 71	144,399
37	Webb	Mines Rd / FM 1472	133,925
38	Bexar	N PanAm Expy / IH 35	133,756
39	Denton	BS 121H	130,388
40	Dallas	Stemmons Fwy / IH 35E / US 77	128,649
41	Bexar	Charles West Anderson Loop / SL 1604 NW	126,765
42	Denton	IH 35E / US 77	124,522
43	Dallas	Walton Walker Blvd / SL 12 W	124,157
44	Collin	University Dr / US 380	122,791
45	Harris	N Loop E Fwy / IH 610	114,871
46	Harris	W Loop S Fwy / IH 610	112,207
47	Smith	S Broadway Ave / US 69	111,249
48	Harris	South Fwy / SH 288	105,226
49	Bexar	Connally Loop N / IH 410	104,676
50	Tarrant	SH 360	101,917
51	Harris	SH 146	101,592
52	Bexar	McAllister Fwy / US 281	101,379
53	Harris	Katy Fwy / IH 10 / US 90	100,820
54	Harris	Sam Houston Tollway W / SL 8	100,005
55	Ector	E 42nd St / SH 191	97,077
56	Bexar	PanAm Expy / IH 35 / IH 10	96,888
57	Harris	Main St	96,593
58	Harris	Brazos St	94,227
59	Travis	IH 35	94,180
60	Webb	Lloyd Bentsen Hwy / BU 59Z	93,639
61	Bexar	N PanAm Expy / IH 35	92,796
62	Harris	East Fwy / IH 10 / US 90	87,942
63	Harris	Grand Pkwy / SH 99	87,928
64	Cameron	E 14th St / SH 48	87,106
65	Dallas	IH 35E / US 77 / US 67	86,937
66	Tarrant	SH 360	86,891
67	Dallas	IH 20	85,003
68	Bexar	Connally Loop N / IH 410	84,604
69	Tarrant	Airport Fwy / SH 121	84,140
70	Harris	Airline Dr	83,441
71	Harris	W Bellfort St	82,807
72	Johnson	Wilshire Blvd / SH 174	82,433
73	El	Airway Blvd	82,316
74	Cameron	IH 69E / US 83 / US 77	82,001
75	Webb	Del Mar Blvd	81,522
76	Tarrant	IH 35W	81,507
77	Webb	Mines Rd / FM 1472	81,154
78	Webb	McPherson Rd	81,023
79	Harris	E Loop Fwy / IH 610	80,176
80	Harris	Fountain View Dr / Renwick Dr	79,745
81	Ector	Andrews Hwy / US 385	78,143
82	Montgomery	Northpark Dr	77,068
83	Tarrant	Airport Fwy / SH 183	76,592
84	Harris	Weslayan St / Stella Link Rd	75,324
85	Tarrant	Jacksboro Hwy / SH 199	75,107
86	Ector	E University Blvd	74,855
87	Travis	IH 35	74,661
88	Travis	MoPac Expy / SL 1	74,431
89	Dallas	Griffin St / N Pearl St	73,694
90	Tarrant	N Loop 820 / Jim Wright Fwy / IH 820	71,499
91	Dallas	IH 20	71,483
92	Tarrant	E Loop 820 / IH 820	71,193
93	Tarrant	Tom Landry Fwy / IH 30	70,724
94	Dallas	US 175	70,137
95	Dallas	S Walton Walker Blvd / SL 12 W	69,980
96	Harris	North Fwy / IH 45	69,776
97	Montgomery	North Fwy / IH 45	69,129
98	Cameron	E Price Rd	68,780
99	Cameron	Paredes Line Rd / FM 1847	67,737
100	Harris	Tomball Pkwy / SH 249	67,706