Antonio Area Freeway System
page last updated October 23, 2021
by Brian Purcell)
expressway opened in 1949, the
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
one of the largest systems of state highways and freeways in the
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
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
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.
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.
some of the most common questions I hear about San Antonio's freeways
and other local roads.
the evolution of the San Antonio freeway system.
2020 traffic statistics
traffic counts and general statistics.
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.
on a freeway
segment on the map above
or on one of the