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San Antonio Area
Freeway System
Interstate 37
(Lucian Adams/Wm. J.
Bordelon Freeway) |
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This page last updated
July 08, 2010 |
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This page covers
Interstate 37 east and south of downtown San Antonio from I-35
to US 181. This freeway continues north of downtown as
US 281 North.
Length:
11 miles |
On this page
Overview
Interstate 37 serves San Antonio's
southeast side and intersects with US 181, the main link to fast-growing
Wilson County. The freeway provides access to downtown San
Antonio, the Alamodome, St. Paul Square, Brooks City-Base, the San
Antonio Missions Trail National Park, and the Texas Center for
Infectious Disease. Between downtown and Military, the freeway is
fronted mostly by residential areas. From Military to US 181, most
of the frontage is undeveloped.
Roadway details
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LANES |
- 8 lanes from
I-35 to S. New Braunfels Ave. with a short six lane stretch
through the I-10 interchange
- 6 lanes from
New Braunfels Ave. to Military
- 4 lanes
from Military to Loop 410
- 5
lanes (3 northbound, 2 southbound) from Loop 410 to US
181
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ACCESS ROADS |
There are no access roads
along this freeway.
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EXITS |
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Click
here for a list of I-37 exits.
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SPEED LIMITS |
- 70 mph from US
181 to Loop 410
- 65
mph northbound/70 mph southbound from Loop 410
to SE Military Dr.
- 65 mph from
SE Military Dr. to Brooklyn Ave.
- 60 mph
from Brooklyn Ave. to I-35
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SPECIAL FEATURES &
NOTES |
- TransGuide coverage
along entire route
- Northbound left exit to
southbound
I-35
- US 281
concurrent (multiplexed
with I-37) from I-35 to Loop 410
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TRAFFIC |
Heavy in the downtown area.
Heavy to moderate south of I-10.
Traffic volumes over
the past decade have increased sharply along the southern half
of the corridor, although the 2007-2008 period saw a decline
throughout the corridor.
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AVERAGE ANNUAL DAILY TRAFFIC |
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LOCATION |
1990 |
1998 |
2000 |
2006 |
2007 |
2008 |
'98-'08
% CHG |
| S of I-35 |
119,000 |
131,000 |
131,000 |
125,000 |
129,000 |
128,000 |
-2% |
| Carolina St. |
96,000 |
105,000 |
110,000 |
118,000 |
117,000 |
115,000 |
+10% |
| Fair Ave. |
71,000 |
96,000 |
104,000 |
120,000 |
119,000 |
108,000 |
+13% |
| S. New Braunfels Ave. |
43,000 |
62,000 |
69,000 |
87,000 |
90,000 |
77,000 |
+24% |
| N of SW Military Dr. |
29,000 |
44,000 |
52,000 |
77,000 |
74,000 |
62,000 |
+41% |
| N of Loop 410 |
21,000 |
35,000 |
42,000 |
65,000 |
61,000 |
49,000 |
+40% |
| N of US 181 |
25,000 |
41,000 |
51,000 |
67,000 |
71,000 |
51,000 |
+24% |
Media gallery
Click
here for photos and video of this freeway.
Construction
projects
- Fair
Ave. to Goliad Rd.: Work started in the Fall of
2007 on a package of improvements including raising the bridges at Pecan Valley,
S New Braunfels, and Southcross to meet the 16 foot minimum clearance requirement and reconstructing the main lanes
to repair base failures.
- At SE Military Dr.:
Click here for details on this project.
Click
here for the latest status report on these
projects.
Future plans
The MPO has an unfunded proposal in its 25-year plan to
expand I-37 from four to six lanes from Loop 410 south to the Atascosa County
line.
History
Authorized on October 1, 1959.
The section south of I-10 is named
for Lucian Adams and the section north of I-10 is named for William J. Bordelon,
both World War II Medal of Honor recipients. Was originally named the
"Southeast Expressway."
The route was first proposed by 1964.
All of the route south of Florida St. to US 181 was complete by 1969. The
section north of Florida St. and adjacent to the present-day HemisFair Park was
paved in early 1968 for use as parking for the 1968 World's Fair.
It was later completed as a freeway north to I-35 by 1971.
Access roads along most of the route south of
I-10 were proposed in the late '80s but were never built.
TransGuide went online from Fair to I-35 in
1995. Work to raise the overpasses at Pecan Valley, S New Braunfels, and Southcross was completed in 2009-2010. The former cloverleaf interchange
at SE Military was removed and replaced with a diamond interchange in 2010.
The section south of Loop 410 to US 181 was rebuilt in 2009 to better facilitate
hurricane evacuations from Corpus Christi and South Texas.
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