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San Antonio
Freeway system
  Primer
  Fwy system history
  2019 traffic statistics
  The freeways
    I-10 East
    I-10 West
    I-35 North
    I-35 South
    I-37
    Kelly Pkwy
    Loop 410 (I-410)
    Loop 1604
    SH 151
    Spur 371
    US 90 West
    US 281 North
    Wurzbach Pkwy
  Construction projects
    I-10E Exp (410-1604)
    I-10E Exp (Graytown)
    I-10E/Loop 410
    I-10 Boerne area
    I-10/Woodlake
    I-35 Comal Projects
    I-35 NEX
    Loop 410/SH 151
    Loop 410/US 281
    LP 1604N Expansion
    LP 1604/Blanco
    LP 1604/FM 78-I-10
    LP 1604/I-35-FM 78
    SH 151 Expansion
    SH 151/LP 1604
    US 90W Expansion
    US 90/Loop 410
    US 281N Expansion
    US 281 Comal Exp
    US 281/Basse
    US 281/Jones-Mltsbrg
    Wurzbach/NW Military
  Etcetera
    HOV lanes
    Media galleries
    Tollway system
    TransGuide
    10/1604 yield signs
    History of 281/410
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The San Antonio Area Freeway System

This page last updated October 10, 2020
 
San Antonio skyline w/freeway in foreground
(Photo by Brian Purcell) 

Since the first expressway opened in 1949, the San Antonio metropolitan area has enjoyed one of most progressive and comprehensive urban freeway systems in North America. For many of those early years, San Antonio was second only to Los Angeles in the number of freeway miles. While most US cities now have extensive freeway systems, Bexar County still has one of the largest systems of state highways and freeways in the nation. In 2017, there were 1,004 centerline miles and 3,384 lane miles of state-maintained roadways in Bexar County. In 2018, the San Antonio urbanized area had 258 centerline miles and 1,435 lane miles of freeway; this ranked 22nd nationwide for both categories, but ranked 16th for lane miles per capita and for percentage of local roads (3.2%) that are freeways. Just over 50% of all local traffic is carried on the freeway system, which ranks seventh nationally. A study by the Surface Transportation Policy Project in 1998 ranked San Antonio's highways as the best among the largest US urban areas.

This site covers the San Antonio freeway system in-depth. (For the boundaries of what is covered, see the primer page.) Below, you'll find links to general information about the local freeways, their history, and pages with in-depth details about each freeway. There are also details of the major freeway construction projects, and information about TransGuide and other ancillary aspects of the local freeway system.


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General information

Primer
Includes lots of basic information about the freeway system including layout, statistics, double-decked freeways construction, cancelled routes, and signage, as well as the conventions used on this site.
 
FAQs
Answers to some of the most common questions I hear about San Antonio's freeways and other local roads.
 
Freeway system history
A history of the evolution of the San Antonio freeway system.
 
2019 traffic statistics
Freeway traffic counts and general statistics.
 


The freeways

Below you can access detailed information about each freeway, including a description of the route and the length covered, lane and access road configuration, a description of the general traffic conditions and traffic counts, a complete list of exits in each direction, speed limits, special features, current construction, future plans, and as much history as I know about the route.

I-10 WestI-35 NorthI-35 SouthI-10 EastI-37I-37US 90 WestSH 151US 281 NorthSP 371Kelly ParkwayKelly ParkwayWurzbach ParkwayLoop 1604Loop 1604Loop 410Loop 410Loop 410Loop 410Loop 410Loop 410Loop 1604Loop 1604Loop 1604Wurzbach ParkwayUS 90Loop 410US 281

Click on a freeway segment on the map above or on one of the links below



Construction projects

Construction Current and future freeway improvement projects
MAJOR PROJECTS
I-10 Boerne-Fair Oaks Ranch projects
Foster Rd to Graytown Rd
East Expansion (Loop 410 to Loop 1604)
 East Expansion (Loop 1604 to Pfeil Rd)

I-35 Loop 410 NE to Loop 410 South
 Northeast Expansion (NEX) Project
 Comal County projects

US 90  West Expansion (Loop 410 to SH 211)

US 281 North Expansion (Loop 1604 to Borgfeld Rd)
Comal County Expansion
 At Jones-Maltsberger Rd
 At Basse Rd
 Nakoma Dr to Jones-Maltsberger Rd (North)

I-410  Ingram Rd to US 90
 West Ave to Airport Blvd

Loop 1604 I-35 to FM 78
FM 78 to I-10 East
North Expansion (Bandera Rd to I-35 North)
 At Blanco Rd

SH 151  Expansion (Loop 410 to Loop 1604)
 Alamo Ranch Pkwy at Westwood Loop

Wurzbach Pkwy  NW Military Hwy to Lockhill Selma Rd

I-10 East/Loop 410
 US 90 West/Loop 410
 SH 151/Loop 410
 SH 151/Loop 1604


Etcetera


Other sites of interest

TxDOT- San Antonio District
http://www.txdot.gov/inside-txdot/district/san-antonio.html
TransGuide
http://www.transguide.dot.state.tx.us/SAT/sat.htm
Alamo Area Metropolitan Planning Organization
http://www.alamoareampo.org/
Alamo Regional Mobility Authority
http://www.alamorma.org
VIA Metropolitan Transit
http://www.viainfo.net
City of San Antonio Department of Transportation and Capital Improvements
http://www.sanantonio.gov/TCI/
San Antonio Mobility Coalition
http://www.samcoinc.org/
TexasFreeway.com (by Ron Jackson)
http://www.texasfreeway.com
Houston Freeways
http://www.houstonfreeways.com
Dallas-Ft. Worth Freeways
http://www.dfwfreeways.com




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This page and all its contents are Copyright 2019 by Brian Purcell

NOTICE
The information provided on this website is provided on an "as-is" basis without warranties of any kind either express or implied.  The author and his agents make no warranties or representations of any kind concerning any information contained in this website.  This website is provided only as general information.  The author expressly disclaims all liability with respect to actions taken or not taken based upon the information contained herein or with respect to any errors or omissions in such information.  All opinions expressed are strictly those of the author.  This site is not affiliated in any way with any official agency.