Antonio Area Freeway System
35 South (South
last updated November 27, 2012
covers Interstate 35 west and south of downtown San Antonio from the
I-10 West interchange to Loop 1604. For information on I-35
of downtown, see the I-35 North
On this page
of NAFTA, I-35 South has become an increasingly important spoke in San
Antonio's freeway system. This segment serves the city's
southwest side and continues on to Laredo, the busiest US-Mexico border
crossing. This corridor is also an important component in the
continuing development of Port San Antonio.
serves downtown San Antonio, Market Square, the University of Texas at
San Antonio downtown campus, the San Antonio Produce Market, South Park
Mall, Palo Alto College, and the Toyota assembly plant as well as the
cities of Von Ormy and Somerset. Commercial and industrial
development fronts the freeway near downtown. Residential and
some commercial development lines the corridor south of US 90 to
Somerset Rd. Mostly undeveloped land takes over south of Somerset Rd.
to Von Ormy, which lines both sides of I-35 just north of Loop 1604 and
the new Union Pacific intermodal terminal, which sits on the west side
of the freeway just north of Von Ormy.
schematic of I-35 South.
lanes from I-10 West to Laredo
St. with a short double-decked
stretch (4 lanes on the upper levels; 4 lanes on the lower level) from
Guadalupe St. to S. Alamo St.
lanes (4 southbound, 5
northbound) from Laredo St. to US 90
lanes from US 90 to Spur
lanes from Spur
422/Poteet-Jourdanton Hwy. to Loop 1604
traditional access roads along most of the route from I-10 West to US
90, although S. Pecos-La Trinidad and S. Laredo function as access
roads along parts of the route and a short access road exists
southbound from San Marcos St. to Nogalitos.
access roads along most of remainder of route
roads do not continue through Loop 410 interchange or over the Medina
for a list
of I-35 South exits.
mph from I-10
West to Loop 410
from Loop 410 to Loop 1604
FEATURES & NOTES
freeway from just north of S. Alamo to just south of S. Laredo
coverage from I-10 West to Southcross
Metropolitan Transit Madla Transit Center/Park
& Ride just
north of Zarzamora
to Loop 353
miles of I-10/US 87 concurrent
(multiplexed) from I-10 West to
81 was concurrent (multiplexed) over I-35 in Bexar County before it was
decommissioned south of Ft. Worth in 1991
heavy from I-10 West to SW Military. Moderate to light
south from there. Regular peak-period congestion can be found
northbound in the morning between Division and Cesar Chavez and in the
evening southbound between I-10 West and US 90.
the corridor has seen mixed traffic growth over the past
The biggest increase has been south of Loop 410 while the core segment
north of Military has seen traffic decline markedly.
|S. Laredo St.
|N of SW Military
|S of SW Military
|S of Palo Alto Rd.
|N of New Laredo
for photos and video of this
projects in this corridor.
plan has proposals for the expansion of I-35 to eight lanes from US 90
to the Atascosa County line.
A new expressway
roughly paralleling this section of I-35 is proposed as
part of the Port San Antonio long-range road improvements
package. It would run north from SH 16 near the Toyota plant
US 90 via General Hudnell, crossing I-35 between Spur 422 and Loop 410.
designation authorized on October 1, 1959. Named PanAm
because it is supposedly a segment of the Pan American
Was originally called the "Southwest Expressway." This
also part of the so-called NAFTA Superhighway.
S. Alamo to Nogalitos was completed by 1951. The segment
that to present-day I-10 West was completed by 1957. There
two proposals for the section from Nogalitos to Loop 410, including one
that would have usurped Nogalitos and New Laredo Hwy. The
routing was approved by 1957 and open to traffic by 1964. The
section from I-10 West to US 90 was expanded in the late
The section from SW Military to Spur 422 was expanded from four to six
lanes around 1989. TransGuide coverage was added to the
from I-10W to Southcross in 1995. The section from US 90 to
Military was reconstructed ca. 2009. The reconstruction
several pedestrian overpasses, expanded the overpasses and frontages
roads, and relocated several entrance and exit ramps. The
from Zarzamora to Somerset was reconstructed during the same time
frame. That project removed the previous southbound left-hand
exit to SP 422 and the northbound left-hand exit to Palo Alto Rd.,
extended the northbound frontage road through the Spur 422 interchange,
and adjusted several roadways and ramps in the vicinity.