Home >
Texas Highwayman Pages > San Antonio Freeway
System > I-37
 |
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:
10 miles |
On this page:
Description
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
|
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 US 181
|
|
|
ACCESS ROADS |
There are no access roads
along this freeway.
|
|
|
EXITS |
|
Click
here for a list of I-37 exits
|
|
SPEED LIMITS |
- 70 mph from US
181 to Loop 410
- 60 mph from
Loop 410 to I-10
- 55 mph from
I-10 to I-35
|
|
|
SPECIAL FEATURES &
NOTES |
- TransGuide coverage
along entire route
- Northbound left exit to
southbound
I-35
- US 281 multiplexed
with I-37 from I-35 to Loop 410
|
|
|
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.
 |
|
|
AVERAGE ANNUAL DAILY TRAFFIC |
|
LOCATION |
1990 |
1996 |
2000 |
2004 |
2005 |
2006 |
'96-'06
% CHG |
| S of I-35 |
119,000 |
123,000 |
131,000 |
133,000 |
139,000 |
125,000 |
+2% |
| Carolina St. |
96,000 |
98,000 |
110,000 |
118,000 |
121,630 |
118,000 |
+20% |
| Fair Ave. |
71,000 |
92,000 |
104,000 |
110,000 |
111,750 |
120,000 |
+30% |
| S. New Braunfels Ave. |
43,000 |
59,000 |
69,000 |
79,000 |
80,460 |
87,000 |
+47% |
| N of SW Military Dr. |
29,000 |
41,000 |
52,000 |
70,000 |
71,760 |
77,000 |
+88% |
| N of Loop 410 |
21,000 |
31,000 |
42,000 |
60,000 |
61,060 |
65,000 |
+110% |
| N of US 181 |
25,000 |
41,000 |
51,000 |
67,000 |
68,850 |
67,000 |
+63% |
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 requirement and reconstructing the main lanes.
At SE Military Dr.: The existing
cloverleaf interchange will be removed and replaced with a standard urban
diamond interchange. This is necessary because of rapid growth in the area
and the proximity of the Goliad Rd. intersection to the exit ramp from I-37.
The new interchange will provide better spacing between the intersections as
well as better traffic control.
Click
here for the latest status report on these
projects.
Future plans
The MPO has a 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. Named
for Lucian Adams, a Medal of Honor recipient. 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 HemisFair, 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.
|
