SAN ANTONIO FREEWAY HISTORY
Read my essay on San Antonio's freeway history for the Express-News' Tricentennial series
The full history of the freeway system is available on this site
Antonio Area Freeway System
Interstate 35 North (North PanAm Freeway)
|This page last updated December 2, 2016
||This page covers Interstate 35 north of downtown
San Antonio from the I-10 West interchange to FM 482 in
Schertz. For information on I-35 continuing north, see the San Antonio-Austin Corridor
page. For details on I-35 south of downtown, see the I-35 South page.
Length: 20 miles
freeway serves the
northeast corridor and provides access to Fort Sam Houston, Splashtown
park, the AT&T Center and Freeman Coliseum, San Antonio
Center, the headquarters for IT
company Rackspace and Randolph Brooks Federal Credit Union, Randolph
AFB, Retama Park racetrack, the Forum
center, and the cities of Kirby, Windcrest, Live Oak, Converse,
Selma, and Schertz. The route is entirely urban and suburban
and the majority
of the adjacent land use consists of warehouse, light industry, and
commercial development. This route is also the southern
continuation of the
Corridor and is part of
the so-called "NAFTA Superhighway".
||There are two interchanges with Loop 410
along this corridor. Loop 410 North intersects north of
Walzem at the Fratt Interchange, and Loop 410 South intersects south of
Rittiman at the "410 South Cutoff". Loop 410 is concurrent
(multiplexed) with I-35 in between.
- 10 lanes double-decked (6 lanes
on the upper levels; 4 lanes on the lower level) from I-10 West to
- 6 lanes from I-37/US 281 to Loop
410 North (Fratt Interchange)
from Loop 410 North to FM 3009 with a short 6 lane section through the
Loop 1604 interchange
- 6 lanes from FM 3009 to FM 482
- No traditional access roads from I-10 West to
I-37/US 281. However, Elmira St. functions as a southbound
access road and Quincy St. functions as a northbound access road.
- Continuous access roads along most of route north
of downtown except:
- Northbound access road does not continue through
the Loop 410 South Cutoff interchange or the Loop 1604 interchange.
- Northbound access road through-traffic requires a
left turn at Binz-Engleman Rd. and at Randolph Blvd.
- Southbound access road through-traffic requires two
left turns at Loop 1604.
for a list of I-35 North exits.
mph from I-10 West to Loop 410 North (Fratt Interchange)
- 65 mph from Loop 410 North to
- 70 mph from Forum Pkwy to FM 482
|SPECIAL FEATURES &
- Double-decked freeway northbound
and southbound between I-10 West and I-37/US 281
- TransGuide coverage along entire
- VIA Metropolitan Transit Randolph Park
& Ride located adjacent to Fratt Interchange
- Carpool parking lots at
- Shin Oak Dr. (southbound side)
- Olympia Pkwy. (southbound side)
- Evans Rd. (under freeway)
- Four miles of Loop 410 concurrent
(multiplexed) from 410 South Cutoff to Fratt Interchange
- US 81 was concurrent (multiplexed) over
I-35 in Bexar County before it was decommissioned south of Ft. Worth in
|Heavy to extremely heavy along entire
Chronic congestion occurs between Loop 410
NE and Loop 410 South (410
South Cutoff). Regular morning and
afternoon peak-period congestion can be found between Loop 1604
and Loop 410 South.
Additional afternoon peak period congestion occurs
northbound approaching I-37/US 281 and from Splashtown to Loop 410 NE.
Over the past decade, the entire corridor has seen
traffic counts increase along the northern half and decrease between
downtown and Loop 410.
ANNUAL DAILY TRAFFIC
|Guadalupe Co. line
|Pat Booker Rd.
|N of Walzem Rd.
|S of Walzem Rd.
|S of Rittiman Rd.
|N. New Braunfels Ave.
for photos and video of this
- Loop 410 NE to Loop 410 South:
for details on this project.
view information for all projects in this
Major Investment Study
(MIS) of the corridor conducted in 1996 for the Metropolitan Planning
Organization (MPO) suggested the addition of barrier-separated express,
and/or HOV lanes to this freeway. In addition, a "Basic
was also recommended including signal improvements, better signage,
modifications, expansion of the TransGuide system, addition of
facilities and bicycle routes, improved bus service, and operational
improvements to both Loop 410 interchanges and the Loop 1604
signal, signage, and TransGuide improvements were
completed. No timetable has been announced for the
express/truck/HOV lanes, although these lanes have been proposed to be elevated and built as
a likely toll project.
"stack" interchange was proposed at Loop 1604 as part of the Loop 1604 managed lanes project.
October 2011, the city
of San Antonio received federal funding as part of a program to assist
communities impacted by military base expansions. The project
funding was the conversion of the southbound I-35 left exit to Loop 410
right-hand flyover. That project is expected began in 2014
with an expansion of I-35 between Loop 410 NE and Loop 410 South.
late 2011, TxDOT and
the Alamo Regional Mobility Authority began work on a new long-range
the I-35 corridor from downtown to FM 1103 including Loop 410 near
Public meetings to solicit input were held in November 2011 and again
authorized on October 1, 1959. Named PanAm Freeway because it
is the US
extension of a segment of the Pan American Highway. Was
originally called the
first section of this
route, from present-day I-10 West to Broadway, was completed in
1954. By 1962,
it had been extended to Artesia Rd. (now AT&T Center Parkway),
section north of Fratt (today's interchange with Loop 410 NE) was also
open. The section from Artesia to Rittiman opened in 1961
followed the next year by the section from Rittiman to Fratt.
The section from Loop 410 North (Fratt
Interchange) to Loop
1604 was expanded from four to eight lanes and the Fratt
around 1984. The section from I-10 West to
I-37/US 281 was
double-decked in the late '80s and early '90s and was the last section
of the massive "Downtown Y" project to be completed in 1993. The
section from Loop 1604 to
FM 3009 was
widened from four to six lanes in 1992, and the segment
FM 3009 and FM 482 was widened from four to six lanes in
coverage was added to the section from I-10 West to New Braunfels Ave.
from New Braunfels Ave. to Walzem in early 2000, from Walzem to
Terrace in August 2000, from Starlight Terrace to the Guadalupe County
April 2003, and from the Guadalupe County line to Austin in 2008.