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San Antonio Area Freeway System
Interstate 10 West (Robert F.
McDermott Freeway) |
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This page
last updated December 29, 2011 |
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This
page covers Interstate 10 northwest of downtown San
Antonio from I-35 to Ralph Fair Rd. Two miles of
I-10 is concurrent (multiplexed) with I-35 south of this
segment; see the I-35 South
page for details. Interstate 10 continues east of
downtown; see the I-10 East
page for more info.
Length:
16 miles
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On this page
Overview
The busiest
freeway in Bexar County, this segment of I-10 serves the
northwest corridor, one of the fastest growing areas of the
city. A tremendous amount of the region's suburban office
space is located in this corridor as are the headquarters for
financial-services giant USAA and gasoline refiner and retailer
Valero. The corridor also serves the rapidly-growing South
Texas Medical Center complex; Wonderland of the Americas mall
(formerly known as Crossroads mall); the Colonnade, Huebner
Oaks, and Fiesta Trails shopping areas; the University of Texas
at San Antonio's (UTSA) main campus; Six Flags Fiesta Texas; and
The Rim, La Cantera, and The Dominion developments. One
suburban city, Balcones Heights, also lies within the corridor
as does the unincorporated Leon Springs area. I-10
continues northward to the booming outlying areas Fair Oaks
Ranch, Boerne, and Kendall County. Inside I-410, the route
is lined with light industrial and residential areas.
Heavy commercial development dominates the landscape between
I-410 and La Cantera Blvd., with lighter development north of
there.
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While
it is signed as east/west, this segment actually runs
mostly north/south. To avoid confusion, many locals
give directions as "inbound" or "outbound" (from
downtown) instead; I use that convention here. |
Roadway details
| SCHEMATIC |
Click here for
a schematic of I-10 West. |
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| LANES |
- 10
lanes double-decked (6 lanes on the upper
levels; 4 lanes on the lower level) from I-35/Frio to
Fulton
- 10
lanes from Fulton to Wurzbach with a short 8
lane section through the Loop 410 interchange
- 8 lanes
from Wurzbach to Huebner
- 7 lanes
(4 outbound, 3 inbound) from Huebner to De Zavala
- 6
lanes from De Zavala to La Cantera
- 4
lanes from La Cantera to Ralph Fair
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| ACCESS
ROADS |
- Access
roads from I-35 to Frio
- No
continuous access roads from Frio to Woodlawn, except
on the inbound side between Woodlawn and Culebra
- Continuous
access roads along remainder of route north of
Woodlawn
- Northbound
access road runs through the center of Leon Springs
instead of being immediately adjacent to the freeway
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Access roads are two-way north of Dominion Dr.
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| EXITS |
Click here for a
list of I-10 West exits. |
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| SPEED
LIMITS |
- 60 mph
from I-35 to Fulton
- 65
mph from Fulton to La Cantera
- 70
mph from La Cantera to Ralph Fair
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| SPECIAL FEATURES &
NOTES |
- Double-decked
from Frio to Hildebrand
- TransGuide
coverage from I-35 to Camp Bullis Rd.
- VIA
Metropolitan Park & Ride locations:
- Crossroads: Crossroads Blvd.
- University: Loop 1604 (under interchange)
- US
87 concurrent (multiplexed) along entire route
- Special
double-height bridge rail barrier on ramp to
I-35 northbound
- Unusual
yield sign arrangement at Loop 1604
interchange; click here
for more information
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| TRAFFIC |
| Heavy
to extremely heavy along entire route. The section
at Callaghan is the busiest freeway segment in the city,
and the section near De Zavala is the second busiest, with
both locations exceeding 200,000 vehicles per day.
Regular morning peak-period congestion occurs inbound
between Ralph Fair and Dominion Dr., on the approach to
Loop 410, and on the approach to I-35. Afternoon
peak-period congestion occurs outbound between Loop 410
and Camp Bullis Rd. and inbound on the approach to Loop
410.
Traffic
counts outside Loop 410 have grown dramatically during
the past decade, with counts along the section at
Huebner increasing by more than 100% during that time.
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| AVERAGE ANNUAL DAILY
TRAFFIC |
| LOCATION |
1990 |
1998 |
2000 |
2006 |
2007 |
2008 |
'98-'08
% CHG |
| Frio
St. |
97,000 |
159,000 |
175,000 |
164,000 |
163,000 |
186,000 |
+17% |
| Crossroads
Blvd. |
112,000 |
163,000 |
152,000 |
164,000 |
153,000 |
171,000 |
+5% |
| Callaghan
Rd. |
121,000 |
172,000 |
174,000 |
216,000 |
215,000 |
238,000 |
+38% |
| Huebner
Rd. |
62,000 |
101,000 |
133,000 |
179,000 |
182,000 |
191,000 |
+89% |
| De
Zavala Rd. |
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132,000 |
161,000 |
209,000 |
206,000 |
221,000 |
+67% |
| S of
Loop 1604 |
45,000 |
90,000 |
111,000 |
151,000 |
155,000 |
167,000 |
+86% |
| La
Cantera Pkwy. |
36,000 |
62,000 |
71,000 |
91,000 |
99,000 |
100,000 |
+61% |
| Dominion
Dr. |
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66,000 |
77,000 |
79,000 |
N/A |
Media gallery
Click
here for photos and video of
this freeway.
Construction projects
- Ramsgate
to Loop 1604: Click here
for details on this project.
Click here to view information for all
projects in this corridor.
Future
plans
There were
proposals in the MPO's previous 25-year plan to widen I-10 to
eight lanes from Camp Bullis Rd. to the Kendall County
line. However, current long-range plans are to add a
single High Occupancy/toll (HOT) lane in each direction along
I-10 from Loop 1604 to Leon Springs and to add an additional
general-purpose main lane each way (for a total of six lanes)
from Leon Springs to Boerne.
A
fully-directional "stack" interchange was proposed at Loop 1604
as part of the Loop 1604 tollway
project.
History
I-10
designation authorized on October 1, 1959. Was originally
named (and is sometimes still referred to as) the "Northwest
Expressway." Renamed ca. 1995 for Robert F. McDermott, the
former CEO of the USAA financial services corporation whose
headquarters are located adjacent to the freeway south of
Huebner.
The section
from Culebra to Woodlawn was opened in 1949 and was the first
freeway in San Antonio. The segment from Culebra to Martin
was completed by 1951. There were various early proposals
for the routing of the section from Woodlawn to the northern end
of Fredericksburg Rd. (near Huebner). The final alignment
was proposed by 1957 and completed by 1964. The remainder
of I-10 West in Bexar County was completed by 1968. The
section from I-35 to Hildebrand was reconstructed and
double-decked during the '80s. The segment north of Loop
1604 to Camp Bullis was widened from four to six lanes in
1991. The section from Loop 1604 south to DeZevala was
widened from four to six lanes in 1993. The segment from
De Zavala to Ramsgate was expanded from four to seven lanes in
1995. Finally, the section from Ramsgate to Callaghan was
widened from four to eight and ten lanes in 1999.
TransGuide coverage was added to the section south of Hildebrand
in 1995, and to the remainder of the route in 1999. The
section from Crossroads to Fulton was widened from six to 10
lanes in 2008. The Dominion Dr. overpass was completed in
2009. The improvements from Camp Bullis Rd. to Dominion
Dr. were completed in mid 2011.
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