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San Antonio Area
Freeway System
Interstate 10 West
(Robert F. McDermott
Freeway) |
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This page last updated
May 19, 2010 |
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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 |
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
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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
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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:
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Crossroads:
Crossroads Blvd.
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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 |
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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 |
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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. | |
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. | | | |
66,000 |
77,000 |
79,000 |
N/A |
Media gallery
Click
here for photos and video of this freeway.
Construction
projects
- At
Camp Bullis Rd: Click here for details on this project.
Click
here to view information for all
projects in this corridor.
Future plans
TxDOT has long planned to
expand I-10 to eight lanes from Huebner to Loop 1604 and revise entrance and
exit ramps. It is hoped that leftover federal stimulus funding will be
available in 2010 to complete this project.
There were proposals in the MPO's
previous 25-year plan to widen I-10 to eight lanes from
Camp Bullis 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 from Leon Springs to Boerne.
A
fully-directional "stack" interchange is now 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.
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