San
Antonio Freeway System
2021
Traffic
Statistics |
|
This
page last updated October 29, 2022 |
Below
are charts and maps tabulating Annual Average Daily Traffic
(AADT)
counts on San Antonio's freeways for 2021. The comments,
rankings and calculations are the author's own analysis based on raw
data from
TxDOT.
The
stats
below are area-wide. For traffic counts only on a
specific corridor, see that freeway's individual page elsewhere on this
site.
Summary
Traffic
counts for 2021
were, frankly, a mess. First, traffic was still recovering from the
pandemic, resulting in a few areas of uneven recovery. Second, TxDOT
made quite a few changes to their traffic measuring stations in San
Antonio, adding several new locations, retiring a few, and slightly
relocating several counters. These changes also may have skewed some
comparisons to previous years.
That
said, some semblance of normality was noted along with a few surprises
that may or may not hold up in subsequent years. For example, a segment
of Loop 410 returned to 300,000+ vehicles a day, but it was the segment
east of Nacogdoches, which is the first time this segment has reached
that milestone. Meanwhile, the previously most-traveled freeway
segment, Loop 410 from McCullough west to I-10, dropped down a few
notches. Another surprise on Loop 410 was that the segment immediately
west of I-10 is now the second busiest in the city; this is one of the
new counter locations, so there is no historical data for this specific
segment
and therefore no way to know where this location ranked previously.
Nine
of the top 20 traffic counts were on Loop 410 North. One was downtown,
and the remainder evenly split on I‑10 West and I-35 North.
With
the pandemic depressing traffic levels in 2020, I chose to use a
two-year window for this year's short-term growth comparison, comparing 2019,
which was pre-pandemic, to last year. This produced mostly expected
results. The top growth spot was on Loop 1604 north of Potranco, with
traffic there surging almost 43% from 2019. A surprise was the #2 spot,
on I-35 south of Fischer Rd. This might be due to a new Amazon
warehouse and other industrial growth in that area. A string of four of
the top 20 locations was along I-35 in Schertz. The rest
were widely scattered along I-10 East and West and
I-37 at
Loop 410. A lone spot on Loop 410 at Bandera Rd. rounded-out this list.
Finally,
the growth over the last decade also produced mostly expected results.
The top three locations all showed traffic more than doubling over the
decade. Five of the top nine locations were in the Loop 1604 West
corridor (one being just east on SH 151.) Six of the top 20 were on the
South Side along or immediately adjacent to Loop 410. Three were along
I-10 East east of Loop 410, a cluster of three were located on the
eastern half of Wurzbach Pkwy., two were out on I-10 West in the Leon
Springs area, and a lone location on Loop 410 North at
McCullough
rounded-out the list. (That Loop 410/McCullough location is likely due
to an anomaly in the 2011 count.)
General
statistics
Number
in
parenthesis is the San Antonio Urbanized Area's rank nationally for
that category.
- Centerline
miles of freeway: 253
(23)
- Interstate
highway miles: 177
- US
and State highway freeway miles: 76
- Percent
of local roads that are freeways: 3.10% (21)
- Lane miles of freeway:
1,419 (23)
- Lane miles per 1,000 people:
0.807 (17)
- Daily
vehicle miles driven on freeways: 22,213,000
(21)
- Percent
of total local daily traffic carried on freeways: 48.5%
(11)
(Source:
Federal Highway Administration, 2020 data)
Average
2021 daily
traffic
by location


Freeway
traffic volumes (2021 AADT)
Segment breaks are approximate
|
FWY |
LOCATION |
2021
AADT |
'19-'21
% CHG |
1 |
 |
E of Nacogdoches Rd.* |
300,835 |
N/A |
2 |
 |
W of Fredericksburg Rd.* |
290,292 |
N/A |
3 |
 |
E of McCullough Ave.** |
281,365 |
-3.55% |
4 |
 |
Cherry Ridge Dr.** |
280,458 |
+1.61% |
5 |
 |
E of Blanco Rd. |
267,693 |
-12.43% |
6 |
 |
S of Thousand Oaks |
243,909 |
+3.56% |
7 |
 |
N of Callaghan Rd.** |
237,094 |
-1.67% |
8 |
 |
N of O'Connor Rd. |
236,781 |
+1.96% |
9 |
 |
S of Bandera Rd. |
236,447 |
+8.36% |
10 |
 |
W of Evers Rd. |
236,098 |
+3.27% |
11 |
 |
S of Crossroads Blvd.** |
219,228 |
+6.38% |
12 |
 |
N of Walzem Rd. |
218,126 |
+7.87% |
13 |
 |
S of Culebra Rd.* |
217,522 |
N/A |
14 |
 |
Bexar/Guadalupe line |
217,401 |
+26.57% |
15 |
 |
E of Honeysuckle Ln.* |
214,718 |
N/A |
16 |
 |
N of DeZavala Rd.** |
202,353 |
+1.67% |
17 |
 |
N of McCullough Ave. |
184,530 |
-6.26% |
18 |
 |
S of Walzem Rd. |
183,715 |
-13.69% |
19 |
 |
N of Huebner Rd. |
183,673 |
+0.71% |
20 |
 |
N of UTSA Blvd. |
183,419 |
+17.51% |
21 |
 |
W of New Braunfels Ave. |
183,377 |
+4.36% |
22 |
 |
S of FM 3009 |
182,384 |
+22.83% |
23 |
 |
W of Frio St. |
178,837 |
-4.52% |
24 |
 |
S of Rittiman Rd. |
175,867 |
-13.99% |
25 |
 |
S of Brookhollow Dr. |
173,472 |
+2.55% |
26 |
 |
W of Perrin-Beitel Rd. |
166,438 |
N/A |
27 |
 |
S of Laredo St. |
160,584 |
-6.60% |
28 |
 |
S of US 90 |
159,854 |
+1.04% |
29 |
 |
S of Commerce St.** |
155,500 |
N/A |
30 |
 |
E of Bitters Rd. |
154,706 |
-5.79% |
31 |
 |
N of Cibolo Valley Dr. |
151,947 |
+20.24% |
32 |
 |
N of Salado Creek |
151,727 |
+5.54% |
33 |
 |
E of Perrin-Beitel Rd. |
150,837 |
-7.50% |
34 |
 |
N of Loop 1604W |
150,152 |
+23.69% |
35 |
 |
E of Probandt St. |
147,822 |
-1.02% |
36 |
 |
E of Cupples Rd.** |
146,449 |
-2.13% |
37 |
 |
W of Probandt St. |
146,320 |
-2.20% |
38 |
 |
E of Zarzamora St. |
145,201 |
-12.38% |
39 |
 |
N of FM 2252 |
142,456 |
+21.42% |
40 |
 |
W of General McMullen Dr.* |
141,232 |
N/A |
41 |
 |
N of Marbach Rd.* |
140,795 |
N/A |
42 |
 |
S of I-35 |
140,216 |
-11.92% |
43 |
 |
N of Hildebrand Ave. |
136,247 |
-19.77% |
44 |
 |
N of I-10E* |
135,259 |
N/A |
45 |
 |
N of Fair Ave. |
133,629 |
-3.42% |
46 |
 |
S of Hildebrand Ave.* |
133,592 |
N/A |
47 |
 |
N of Dominion Dr. |
131,740 |
+34.02% |
48 |
 |
S of Culebra Rd. |
131,343 |
+14.03% |
49 |
 |
N of I-35* |
130,102 |
N/A |
50 |
 |
N of Culebra Rd. |
128,082 |
+7.27% |
51 |
 |
E of Potranco Rd. |
127,629 |
+5.65% |
52 |
 |
W of NW Military Hwy.* |
127,585 |
N/A |
53 |
 |
E of Gold Canyon Rd.** |
126,961 |
+0.52% |
54 |
 |
Vance Jackson Rd. |
126,819 |
-13.67% |
55 |
 |
N of Basse Rd. |
119,366 |
-20.44% |
56 |
 |
S of Sunset Rd. |
119,065 |
-20.90% |
57 |
 |
W of I-10W |
116,488 |
-13.54% |
58 |
 |
S of Nakoma Rd. |
116,344 |
-40.27% |
59 |
 |
S of Bandera Rd. |
115,987 |
+13.37% |
60 |
 |
N of US 90W |
113,034 |
-11.17% |
61 |
 |
W of I-35N |
111,655 |
-11.93% |
62 |
 |
W of O'Connor Rd. |
111,204 |
-5.91% |
63 |
 |
S of Braun Rd.* |
108,514 |
N/A |
64 |
 |
N of Bandera Rd. |
108,092 |
-20.61% |
65 |
 |
W of Hunt Ln. |
106,950 |
+1.74% |
66 |
 |
N of SW Military Dr. |
106,517 |
-8.28% |
67 |
 |
N of Lookout Rd. |
103,520 |
-15.98% |
68 |
 |
S of US 90W |
103,402 |
-14.91% |
69 |
 |
N of George Beach Ave.** |
101,569 |
-18.25% |
70 |
 |
N of Hot Wells Blvd. |
101,143 |
-2.48% |
71 |
 |
N of Hausmann Rd. |
101,084 |
-13.16% |
72 |
 |
S of Loop 1604 |
101,021 |
-5.31% |
73 |
 |
W of Gevers St. |
100,519 |
+12.95% |
74 |
 |
W of US 281N |
100,343 |
-23.49% |
75 |
 |
N of Nacogdoches Rd.** |
93,214 |
-17.87% |
76 |
 |
S of Loop 410** |
91,941 |
+8.49% |
77 |
 |
N of Medina Base Rd.* |
91,829 |
N/A |
78 |
 |
W of Military Dr. |
89,173 |
-0.72% |
79 |
 |
N of Loop 410 |
86,872 |
+17.15% |
80 |
 |
N of Zarzamora St. |
86,323 |
-4.92% |
81 |
 |
N of US 90 |
84,625 |
-2.34% |
82 |
 |
N of Pat Booker Rd. |
84,141 |
-17.70% |
83 |
 |
N of SW Military Dr. |
83,950 |
-2.54% |
84 |
 |
S of Loop 410 |
83,882 |
-10.67% |
85 |
 |
E of Martin Luther King Jr. Dr. |
83,311 |
+6.98% |
86 |
 |
S of Fischer Rd. |
82,263 |
+37.92% |
87 |
 |
N of FM 3351 |
81,446 |
+0.87% |
88 |
 |
E of WW White Rd. |
81,224 |
+1.76% |
89 |
 |
W of Hunt Ln. |
80,978 |
-2.79% |
90 |
 |
E of Foster Rd. |
80,830 |
+7.08% |
91 |
 |
W of WW White Rd. |
80,225 |
+2.77% |
92 |
 |
N of I-10E |
80,020 |
-3.19% |
93 |
 |
E of Loop 410 |
79,979 |
-3.26% |
94 |
 |
S of I-10E |
79,506 |
-4.86% |
95 |
 |
S of Pat Booker Rd. |
79,271 |
+27.47% |
96 |
 |
E of Callaghan Rd.* |
79,202 |
N/A |
97 |
 |
E of Loop 1604 |
79,091 |
+16.82% |
98 |
 |
S of E. Houston St. |
77,434 |
-1.43% |
99 |
 |
E of Old Hwy 90 |
76,940 |
-4.42% |
100 |
 |
S of SH 151* |
75,535 |
N/A |
101 |
 |
W of Loop 1604E |
75,457 |
+15.52% |
102 |
 |
N of Loop 410 |
75,069 |
-25.07% |
103 |
 |
S of Pearsall Rd.* |
72,766 |
N/A |
104 |
 |
N of Pearsall Rd. |
68,998 |
-9.79% |
105 |
 |
S of Potranco Rd.* |
67,160 |
N/A |
106 |
 |
N of FM 78 |
65,960 |
-8.15% |
107 |
 |
S of Rigsby |
64,697 |
-1.51% |
108 |
 |
E of Ackerman Rd.** |
64,529 |
+13.14% |
109 |
 |
W of FM 78 |
61,928 |
-8.33% |
110 |
 |
E of Loop 1604E |
60,663 |
+7.72% |
111 |
 |
N of Loop 1604* |
58,644 |
N/A |
112 |
 |
S of Southcross Blvd. |
58,550 |
-4.62% |
113 |
 |
W of Roosevelt Ave. |
58,048 |
-2.72% |
114 |
 |
W of I-37 |
55,731 |
-8.19% |
115 |
 |
E of I-37 |
54,333 |
-3.59% |
116 |
 |
W of US 281N* |
53,403 |
N/A |
117 |
 |
W of Loop 1604 |
50,704 |
-5.00% |
118 |
 |
E of Poteet-Jourdanton Fwy. |
50,605 |
-4.78% |
119 |
 |
N of Somerset Rd. |
48,915 |
-2.87% |
120 |
 |
E of Roosevelt Ave. |
47,189 |
-10.56% |
121 |
 |
E of Somerset Rd. |
46,956 |
-5.04% |
122 |
 |
N of New Laredo Hwy. |
46,776 |
-3.73% |
123 |
 |
E of I-35S* |
45,988 |
N/A |
124 |
 |
N of US 90W |
45,285 |
+9.96% |
125 |
 |
N of Potranco Rd. |
45,023 |
+42.80% |
126 |
 |
W of West Ave. |
42,004 |
-10.85% |
127 |
 |
E of FM 78 |
40,724 |
-2.81% |
128 |
 |
E of Starcrest Blvd. |
40,385 |
-23.50% |
129 |
 |
E of Perrin-Beitel Rd. |
38,522 |
-28.43% |
130 |
 |
E of Wetmore Rd. |
37,636 |
-23.50% |
131 |
 |
E of US 281N |
34,075 |
-23.50% |
132 |
 |
E of NW Military Hwy. |
20,715 |
-49.15% |
133 |
 |
E of Weidner Rd. |
20,168 |
-20.39% |
134 |
 |
S of US 90 |
14,378 |
-6.61% |
135 |
 |
At Port SA |
10,938 |
-26.10% |
*
New location or substantial relocation of an existing location
** Location slightly moved

Top
20 AADT
locations (2021)
Top 20 two-year
growth locations
This year, this
table reflects
growth from 2019 (pre-pandemic) to 2021.
|
FWY |
LOCATION |
'19-'21
% CHG |
1 |
 |
N of Potranco Rd. |
+42.80% |
2 |
 |
S of Fischer Rd. |
+37.92% |
3 |
 |
N of Dominion Dr. |
+34.02% |
4 |
 |
S of Pat Booker Rd. |
+27.47% |
5 |
 |
Bexar/Guadalupe line |
+26.57% |
6 |
 |
N of Loop 1604W |
+23.69% |
7 |
 |
S of FM 3009 |
+22.83% |
8 |
 |
N of FM 2252 |
+21.42% |
9 |
 |
N of Cibolo Valley Dr. |
+20.24% |
10 |
 |
N of UTSA Blvd. |
+17.51% |
11 |
 |
N of Loop 410 |
+17.15% |
12 |
 |
E of Loop 1604 |
+16.82% |
13 |
 |
W of Loop 1604E |
+15.52% |
14 |
 |
S of Culebra Rd. |
+14.03% |
15 |
 |
S of Bandera Rd. |
+13.37% |
16 |
 |
E of Ackerman Rd. |
+13.14% |
17 |
 |
W of Gevers St. |
+12.95% |
18 |
 |
N of US 90W |
+9.96% |
19 |
 |
S of Loop 410 |
+8.49% |
20 |
 |
S of Bandera Rd. |
+8.36% |

Top
20
one-year AADT growth locations (2019-2021)
Top
20 growth
locations
since 2011
|
FWY |
LOCATION |
2021
AADT |
'11-'21
% CHG |
1 |
 |
N of Culebra Rd. |
128,082 |
+156.16% |
2 |
 |
N of US 90W |
45,285 |
+146.11% |
3 |
 |
S of Fischer Rd. |
82,263 |
+105.66% |
4 |
 |
E of McCullough Ave. |
281,365 |
+91.40% |
5 |
 |
N of Potranco Rd. |
45,023 |
+87.60% |
6 |
 |
S of Culebra Rd. |
131,343 |
+82.42% |
7 |
 |
N of Dominion Dr. |
131,740 |
+78.03% |
8 |
 |
E of Perrin-Beitel Rd. |
38,522 |
+67.49% |
9 |
 |
E of Loop 1604 |
79,091 |
+64.77% |
10 |
 |
E of Poteet-Jourdanton Fwy. |
50,605 |
+63.24% |
11 |
 |
E of Starcrest Blvd. |
40,385 |
+61.54% |
12 |
 |
W of Loop 1604E |
75,457 |
+60.55% |
13 |
 |
E of Loop 1604E |
60,663 |
+59.64% |
14 |
 |
E of Ackerman Rd. |
64,529 |
+57.39% |
15 |
 |
N of FM 3351 |
81,446 |
+56.63% |
16 |
 |
S of Loop 410 |
91,941 |
+50.72% |
17 |
 |
E of Wetmore Rd. |
37,636 |
+50.54% |
18 |
 |
N of Loop 410 |
86,872 |
+49.78% |
19 |
 |
W of Roosevelt Ave. |
58,048 |
+48.84% |
20 |
 |
E of Somerset Rd. |
46,956 |
+46.74% |

Top
20 AADT
growth locations 2011-2021
|