Antonio Area Freeway System
State Loop 1604 (Charles W. Anderson Loop)
|This page last updated February 13, 2017
||This page covers the freeway segment of Loop 1604
across North San Antonio from FM 78 in Converse to SH 151.
The remainder of the 95 mile loop is non-freeway, most of which is a
two-lane rural road.
Length: 31 miles
it was built
1960s, it would have been hard to fathom that Loop 1604 North would become the busy
that it is today. While the southern half remains in its
configuration as a two lane rural state highway, the northern
been expanded to a four lane freeway or divided highway. Loop 1604 forms the
Antonio's two beltways and the freeway portion serves Randolph AFB,
Oaks Mall, the Stone Oak area, Camp Bullis, the University of Texas at
San Antonio's (UTSA) main campus, Six Flags Fiesta Texas, the Shops at
Cantera and the La Cantera development, The Rim development, the headquarters for Valero
and Tesoro Energy, the Alamo Ranch area, Sea World, the Westover
Hills area, and the suburban cities of Converse, Universal City, Live Oak,
Selma, Hollywood Park, Shavano Park, and Helotes. The corridor runs
increasingly dense suburban residential areas with some moderate to
commercial development, especially near I-35, US 281,
Rd., and SH 151. The area outside 1604 from Bandera Rd. to US
is expected to add 200,000 people by 2030.
half of a
fully directional interchange at US 281. Motorists must use
access roads and a
signalized three-level interchange to access US 281 north of
construct the remaining four ramps of the interchange is projected to
start in 2017. Modified cloverleaf interchanges exist at I-10
I-35. At SH 151, there is an elevated direct connector from southbound Loop 1604 to eastbound SH 151.
||Loop 1604 is sometimes mistakenly referred
to as FM 1604. However, it is correctly titled Loop 1604; FM
1604 is in North Texas. (See the History
section below for more info.)
- 4 lanes along entire route
- Continuous access roads along all of route except:
- East of Pat Booker (NB) and east of Kitty Hawk (SB)
- At I-35
- At the railroad tracks between Nacogdoches and
for a list of Loop 1604 exits.
- 70 mph from Nacogdoches to SH 151
- 65 mph from Pat Booker to FM 78
SPECIAL FEATURES &
- TransGuide coverage from
Lockhill-Selma to SH 151
- Five at-grade turnoffs
('right-on, right-off") with no median crossover in Universal City
- Partial directional interchanges
at US 281 and SH 151
- VIA Metropolitan Transit University Park
& Ride located under I-10 interchange
- Carpool parking area on
northbound ramp to/from FM 78
- Unusual yield sign arrangement
at I-10 interchange; click here
for more information
1604 experienced ridiculously blistering traffic growth during the
1990s with average AADT counts up well over 300% along nearly the
entire route, and up nearly 800% near Bandera Rd. However,
has moderated substantially during the past decade.
volume is moderate to heavy along entire route. Traffic on
section north of Bandera Rd. increased more than tenfold between 1990 and
2015. Recurring congestion occurs during morning
evening peak periods between Bandera Rd. and US 281.
ANNUAL DAILY TRAFFIC
|E of FM 78||9,400||26,520||26,000||30,234||30,174||32,510||+22.59%|
|W of FM 78||18,300||48,960||56,000||52,127||54,660||58,811||+20.12%|
|Pat Booker Rd.||19,800||77,580||65,000||72,360||65,010||79,469||+2.43%|
|Green Mountain Rd.||15,800||69,170||70,000||86,454||81,613||94,987||+37.32%|
|Gold Canyon Dr.||19,800||101,950||96,000||100,184||94,187||101,873||-0.08%|
|W of US 281N||24,000||123,680||118,000||121,680||95,273||99,204||-19.79%|
|La Cantera Pkwy.||21,000||90,820||113,000||114,849||70,875||119,668||+31.76%|
|N of Bandera Rd.||10,200||81,220||94,000||102,158||102,971||105,721||+30.17%|
|S of Bandera Rd.||8,700||60,830||65,000||72,175||76,851||81,114||+33.35%|
SH 151/Alamo Ranch Parkway: Click here for
details on this project.
to Potranco: Click here
for details on this project.
view information for all projects in this
and the Alamo
Regional Mobility Authority released plans in June 2007 for a $1.8
mega-project to upgrade and expand Loop 1604 across northern San
Military Dr. West around to I-10 East. This project would
have added tolled freeway lanes where there are currently no freeway lanes (i.e.
Braun Rd. and south of FM 78). Between Braun and FM 78, the
project would have
added new tolled express "managed" lanes in the median between the
free freeway lanes, which would have remained toll-free.
would have built major interchanges at SH 151, I-10W, US 281N, I-35N,
I-10E, as well as modifications and improvements on those intersecting
That project has been shelved and a new environmental impact study on
entire corridor is currently underway and is expected to be completed
Congress approved a national economic "stimulus" plan
that poured additional
federal money into road construction projects. The
Organization (MPO) approved allocating San Antonio's share of
stimulus funding to be used as matching funds to leverage state funding
first half of a 281/1604 interchange. This project built all
four of the ramps
connecting to 281 south of 1604, i.e. northbound 281 to both directions
1604, and both directions of 1604 to southbound 281. The use
of the federal
funds allowed the ramps to be toll-free. The Texas
(TTC) approved the funding request on March 5th, 2009.
Construction began in
early 2011 and was complete in mid 2013. It was
determined that ramps
connecting to 281 north of 1604 could not be built until lingering
stemming from the lawsuits and associated environmental studies for 281
of 1604 are resolved. However, funding has already been set
aside for those
ramps so that construction can begin as soon as the legal and
issues are resolved. For more
information on the 281/1604 interchange, click here.
and ARMA officials announced funding had been secured to extend the
non-toll freeway south from SH 151 to US 90 and build an elevated
direct connector from southbound Loop 1604 to eastbound US 90.
to begin on that segment in late 2016. For more information
the Culebra to Potranco segment, click here.
For the Potranco to US 90 segment, click here.
were announced in early 2017 to make upgrades to the section from I-35
to FM 78. These upgrades will include constructing continuous
access roads to connect the existing stretches of discontiguous access
roads and eliminate the several "right-on, right-off" intersections on
the mainlanes, reconfiguring entrance and exit ramps, adding
auxiliary lanes between ramps, reconstructing the Pat Booker overpass,
and widening the Kitty Hawk overpass. Construction could begin in
2018. More details here.
Order 72928 (June 30, 1977). Named for former Bexar County
Judge Charles W.
Anderson who died from cancer in 1964 after serving for 25 years on the
1604 was assembled
from several Farm-to-Market and State Loop roads in the early
of the FM roads that was included was FM 1604, and segments of other
roads added to the loop were subsequently renumbered
as FM 1604. However, when the loop was done and state
were ready to
change the designation from FM to a Loop, they found that the 1604
number had become ingrained with area residents. So in 1977,
simply changed the route
designation to Loop 1604. As a result, Loop
1604 holds the distinction as the only four-digit state
highway in Texas that is not a
Farm-to-Market road. FM 1604
has since been recycled and is in use in
Irene, Texas, east of Hillsboro. Regardless, many locals
still mistakenly refer to Loop 1604 as FM 1604.
1604 usurped all or
parts of FM 1518, FM 1604, FM 1627, and FM 2173. FM 1518 ran
east to Elmendorf, then north to near US 87 and then on to
Schertz. FM 1627
was a short road connecting I-35 to Pat Booker, and FM 2173 connected
to Macdona. There was also a proposed Loop 334, which
would've run along
today's 1604 routing from I-10 West south to Macdona; this route was
eventually built as part of the 1604 project.
the mid '50s, work
began on the first segment of FM 1604 from I-10 to US 281 and was
around 1958. By 1964, it had been extended to Bandera Rd. on
the west and to
I-10 East. It reached Madona ca. 1974. FM 2173
and 1518 were upgraded and
redesignated as FM 1604 in the mid '70s, and the missing section,
East and FM 1518, was built in the late '70s.
at I-10 and I-35 were completed ca. 1986. Around 1987, the
US 281 and I-10 was upgraded to a four lane freeway. The
281 and I-35 was upgraded to a freeway in two phases in the late
segment from I-10 to Babcock was upgraded in the early '90s as was the
from I-35 to FM 78. The section from Babcock to Braun Rd. was
1996. The section from Braun Rd. to near Culebra was upgraded
highway in 1999, and the overpass at Culebra opened in mid
coverage was added to the section between Babcock and Tradesman in
previously-missing access roads between NW Military and Bitters were
during the summer of 2002. TransGuide coverage was extended
from I-10 to Bandera Rd. in April 2003. Work to upgrade the
section from SH
151 south to US 90 from a two lane rural road to a four lane divided
was completed in 2007 and work to widen the section from FM 78 to Lower
Rd. to a divided highway was complete in September 2011.
Work to upgrade the section from Lower Seguin Rd. to I-10
a four lane divided highway was completed in 2015.
first ramps in the
281/1604 interchange opened on November 8, 2012, with the remainder
few days before Christmas that same year. The remainder of
associated with the interchange project, including additional lanes on
some ramp modifications, were all complete by mid 2013.
overpass for Vance
Jackson Rd. was completed in mid 2013.
officials identified funding to construct new toll-free freeway
Bandera Rd. south to SH 151. After a funding swap to remove
funding from the project, it was removed from the overarching
for the corridor, which allowed the state to begin construction
study was complete. (Construction was subsequently completed
before the study was finished.) The new southbound freeway
to traffic on April 23, 2016, followed by the northbound lanes on May