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West Bexar Road Expansion Projects

This page last updated December 21, 2024

The far west side of Bexar County — the area outside Loop 1604 roughly between Bandera Rd. and the Medina River — is the fastest growing area in the county. As a result, there are several major road expansion projects underway or in the works. This page consolidates information that I know or can find about the various known projects from TxDOT, Bexar County, the City of San Antonio (COSA), the Alamo Regional Mobility Authority (ARMA), and developers.

Status info for TxDOT projects is current as of 12/21/24, Bexar County/ARMA projects as of 9/20/24, and COSA projects as of 7/14/24.



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West Bexar projects map

Base map from OpenStreetMap


UNDER CONSTRUCTION
MAP ID LOCATION AGENCY PROJECT DESCRIPTION ESTIMATED
COMPLETION
1
FM 471 (Culebra Rd)
Old FM 471 to SH 211
TxDOT Widen to four lanes with median or center turn lane and construct interchange at SH 211
(More details)
(SH 211 interchange)
Early 2027
(55% complete)
2
US 90
At SH 211
TxDOT Construct westbound to eastbound turnaround Mid 2026
(45% complete)
3
SH 16 (Bandera Rd)
Loop 1604 to FM 1560
TxDOT Widen to six lanes with Restricted Crossing U‑turn (RCUT) intersections
(More details)
Substantially complete
4
LOOP 1604
Bandera Rd to I‑10
TxDOT Widen to 10 lane freeway including two HOV lanes
(More details)
Early 2025
(91% complete)
5
SH 151
Loop 410 to Loop 1604
TxDOT Widen to six lanes
(More details)
Early 2027
(53% complete)
6
ALAMO RANCH PKWY/GALM RD Developer Build new roadways Mid 2025
ADVANCED PLANNING / SCHEDULED FOR CONSTRUCTION
MAP ID LOCATION AGENCY PROJECT DESCRIPTION ESTIMATED
START
A
FM 1560
Culebra Rd to Bandera Rd
TxDOT Widen to four lanes with median or center turn lane. This was previously planned as two separate projects north and south of Shaenfield, but funding was available to combine them into a single project.
(More details)
(Schematic)
Early 2026
B
BABCOCK RD
Hausman Rd to UTSA Blvd
COSA Widen to four lanes
(More details)
Late 2025
C
CULEBRA RD at LOOP 1604 TxDOT Convert to a Diverging Diamond Interchange (DDI) TBD
D
SH 211
US 90 to Potranco Rd
TxDOT Widen road to four-lane divided highway and build underpass at Potranco Rd
(Currently under study)
TBD
E
GROSENBACHER RD
Potranco Rd to W Grosenbacher Rd
Bexar County Widen to four lanes
(More details)
2027
F
MONTGOMERY RD Bexar County Extend Montgomery Rd to meet Grosenbacher Rd Early 2025
G
US 90
Loop 1604 to SH 211
TxDOT Upgrade to six lane freeway
(More details)
2028
H
US 90
Loop 1604 to Loop 410
TxDOT Widen to eight lanes
(More details)
2025
I
US 90
Military Dr to Loop 410
TxDOT Operational improvements
(More details)
2032
J
LOOP 1604
US 90 to Macdona Locoste Rd
TxDOT Expand to four-lane divided highway with Restricted Crossing U‑turn (RCUT) intersections
(More details)
2026
K
TALLEY RD
Wiseman Blvd to Tamaron Pass
Bexar County Widen to four-lane divided roadway
(More details)
Mid 2025
L
POTRANCO RD
SH 211 to FM 471
TxDOT Widen road to six lanes
(Currently under study. A public meeting is anticipated in early 2025. This project is currently broken into two sections: SH 211 to CR 381, which has a placeholder start date of 2031 at the moment, and CR 381 to FM 471, which has no start date at this time.)
TBD
M
ROFT RD
Culebra Rd to Rockwall Mill
Bexar County Upgrade from rural road to suburban road with curbs, drainage, and sidewalks
(More details)
Early 2025
N
CAGNON RD
Ponder Rd to
S of Medina River
Bexar County Realign road and build bridge over Medina River
(More details)
TBD
O
MILITARY DR
Hunt Rd to
Reed Rd
COSA Widen to four-lane divided road
(More details)
Late 2025
P
US 90
Loop 1604 to Montgomery Rd
TxDOT Add westbound auxiliary lane
2025
Q
ALAMO RANCH PKWY
Loop 1604 to Calaveras Way
ARMA Build four-lane parkway with overpasses in median of existing roadway
2027