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This page last updated October 22, 2026 |
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 10/22/26, Bexar County/ARMA projects as of 08/23/26, and COSA projects as of 10/22/26.
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Base map from OpenStreetMap
| UNDER CONSTRUCTION | |||||
| MAP ID | LOCATION | AGENCY | PROJECT DESCRIPTION | ESTIMATED COMPLETION |
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CULEBRA RD (FM 471) 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 (84% complete) |
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ALAMO RANCH PKWY/GALM RD | Developer | Extend roads | Late 2026 |
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TALLEY RD Wiseman Blvd to Tamaron Pass |
Bexar County | Widen to four-lane divided roadway |
Mid 2027 (55% complete) |
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LOOP 1604 Bandera Rd to I‑10 |
TxDOT | Widen to 10 lane freeway including two HOV lanes (More details) |
Substantially complete |
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SH 151 Loop 410 to Loop 1604 |
TxDOT | Widen to six lanes (More details) |
Early 2027 (98% complete) |
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GALM RD EXTENSION | Developer | Build new connecting road (future Galm Rd.) | 2027 | |
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MILITARY DR Hunt Rd to Reed Rd |
COSA | Widen to four-lane divided road (More details) |
Mid 2027 | |
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US 90 Loop 1604 to SH 211 |
TxDOT | Widen to ten lanes and construct WB to NB flyover (More details) |
Mid 2029 (32% complete) |
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BABCOCK RD Hausman Rd to UTSA Blvd |
COSA | Widen to four lanes (More details) |
Late 2027br> (27% complete) | |
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FM 1560 Culebra Rd to Bandera Rd |
TxDOT | Widen to four lanes with median or center turn lane (More details) (Schematic) |
2029 (1% complete) |
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| ADVANCED PLANNING / SCHEDULED FOR CONSTRUCTION | |||||
| MAP ID | LOCATION | AGENCY | PROJECT DESCRIPTION | ESTIMATED START |
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LOOP 1604 Bandera Rd to SH 151 |
TxDOT | Expand to 10 lane freeway including two HOV lanes | TBD | |
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LOOP 410 Valley Hi Dr to Somerset Rd |
TxDOT | Expand freeway to eight lanes and construct new interchange at I-35 South | TBD | |
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SH 151 At LOOP 1604 |
TxDOT | Replace existing signalized left turn to SB 1604 with a grade-separated ramp | TBD | |
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SH 211 US 90 to Potranco Rd |
TxDOT | Expand road to four-lane divided highway | TBD | |
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GROSENBACHER RD Potranco Rd to W Grosenbacher Rd |
Bexar County | Widen to four lanes | 2028 | |
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CAGNON RD Ponder Rd to S of Medina River |
Bexar County | Realign road and build bridge over Medina River | Mid 2027 | |
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US 90 Loop 1604 to SH 211 |
TxDOT | Upgrade to six lane freeway (More details) |
2027 | |
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ALAMO RANCH PKWY At Westwood Loop |
ARMA | Build eastbound overpass (More details) |
Mid 2027 | |
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ALAMO RANCH PKWY Westwood Loop to Calaveras Way |
ARMA | Build four-lane parkway with overpasses in median of existing roadway (More details) |
Early 2028 | |
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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 | |
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US 90 Military Dr to Loop 410 |
TxDOT | Operational improvements (More details) |
2032 | |
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POTRANCO RD (FM 1957) SH 211 to FM 471 |
TxDOT | Widen road to six lanes (A public meeting for this project was held on October 21, 2026. This project will likely start with or after the SH 211 expansion project.) |
TBD | |
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ROFT RD Culebra Rd to Rockwall Mill |
Bexar County | Upgrade from rural road to suburban road with curbs, drainage, and sidewalks | Early 2027 | |
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TALLEY RD Old Talley Rd to Tamaron Pass |
Bexar County | Widen road to four lanes and remove sharp bend | Mid 2028 | |
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MARBACH RD Wentwood Rd to Just My Style |
Bexar County | Complete gap in corridor | Late 2026 | |