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[i] Information SAN ANTONIO FREEWAY HISTORY
Read my essay on San Antonio's freeway history for the Express-News' Tricentennial series here. The full history of the freeway system is available on this site here.

I-10 San Antonio Area Roads & More
I-10 West Projects (Boerne - Fair Oaks Ranch)

This page last updated September 27, 2017

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I-10 West projects map

TxDOT has several projects in-progress or upcoming along I-10 West between Leon Springs and Boerne to improve intersections, add new overpasses, and convert the access roads to one-way operation. This page contains information about all of these projects.  

The overarching goal of most of these projects is to convert the access roads to one-way operation from Leon Springs to Boerne. As this area becomes more suburbanized, one-way access roads will be safer and more efficient. For optimal operation, there needs to be a crossover every mile or so. Otherwise, someone turning onto a one-way access road just past an intersection and wanting to go the opposite direction could have to travel more than two miles out of their way; having a crossover every mile or so both minimizes this inconvenience and provides better access for emergency vehicles. This is the reason why new overpasses at Old Fredericksburg Road and Balcones Creek Road are planned (and is the primary reason, by the way, that the overpass at Dominion Drive was built several years ago, despite cynical misinformation alleging otherwise.)

Note that none of these projects will add any new mainlanes to I-10 itself. Planning is underway for future projects to do that.

The schematics below are courtesy of TxDOT; the annotations on them are my own.


1   At SH 46 (W Bandera Road)

There are two projects at this location. A project to build a new frontage road from Christus Parkway to SH 46 is currently underway. This project will move the westbound exit to SH 46 further south on the new frontage road and add a new westbound entrance ramp between Christus Parkway and SH 46. The new frontage road will join into the existing off-ramp for now

The future project will overhaul and redesign the entire interchange here. The SH 46 overpass will be widened to two through lanes and a left turn lane in each direction. The access roads adjacent to the overpass will be re-aligned inward toward the mainlanes and portions of the old access roads at School St. and Upper Balcones Rd. will be converted to local access drives configured to minimize conflicts. A westbound to eastbound turnaround will also be constructed.

The recent announcement of a proposed Buc-ee's store about 1.5 miles south of this intersection has accelerated TxDOT's proposed timeline for the planned future project.

Westbound frontage road:
  • This project started in 2015 but was delayed due to performance issues with the contractor 
  • Estimated completion: Fall 2017 (currently 84% complete)

Interchange:

  • Projected start: Mid 2018

Click above to see the schematic for this project


2   At US 87 Business (S Main Street)

The interchange will be completely redesigned into a more conventional diamond intersection. A new, wider overpass will replace the existing overpass and will end in a "T" at a realigned eastbound access road. A new westbound access road will continue beyond the new intersection with US 87 and join with the new frontage road currently under construction near Christus Parkway. There will be turnarounds for both directions. The existing entrance and exit ramps will be relocated further south from the intersection.

The recent announcement of a proposed Buc-ee's store on the west side of this intersection has accelerated TxDOT's proposed timeline for this project. It will also likely change the project to include a planned City of Boerne thoroughfare running south from the new overpass and the elimination or modification of the planned service drive in that area.

  • Projected start: Mid 2018

Click above to see the schematic for this project


3   At Scenic Loop Road/Boerne Stage Road

Current project:
Scenic Loop under I-10 is being widened to accommodate turning lanes. To facilitate this, the I-10 overpass is being lengthened and rebuilt higher to improve clearance. Additional turn lanes will be added on the access roads.

  • Estimated completion: Fall 2017 (currently 94% complete)

Click above to see the schematic for this project

Future project:
A future project will add turnarounds in both directions, move the entrance and exit ramps, and convert the access roads to one-way.
  • Scheduled start: TBD

Click above to see the schematic for this project


4   At Balcones Creek Road/Dietz Elkhorn Road

A new overpass for I-10 will be built at Balcones Creek Road. The access roads will be converted to one-way and new access road bridges over Balcones Creek will be built. The crossover under I-10 will remain.

  • Projected start: Late 2018

Click above to see the schematic for this project


5   At Fair Oaks Ranch Parkway/Tarpon Drive

The overpass will be widened to five lanes and realigned to join Fair Oaks Ranch Parkway to Tarpon Drive. The access roads south of Fair Oaks Pkwy will be converted to one-way and the entrance and exit ramps will be relocated. The future project at Balcones Creek Road (above) will then convert the access roads north of Fair Oaks Pkwy to one-way and relocate those entrance and exit ramps.

  • Project currently underway
  • Estimated completion: Summer 2018 (currently 57% complete)

Click above to see the schematic for this project


6   At Old Fredericksburg Road/Buckskin Drive

A new overpass for I-10 is being built at Old Fredericksburg Road connecting it to Buckskin Drive. The access roads will be converted to one-way, new entrance and exit ramps for this intersection added, and the exit and entrance ramps for Ralph Fair Road/Boerne Stage Road will be relocated.

  • Project currently underway
  • Estimated completion: Summer 2018 (currently 60% complete)

Click above to see the schematic for this project



Other sites of interest
TxDOT - I-10 Kendall Extension
https://www.txdot.gov/inside-txdot/projects/studies/san-antonio/i-10-kendall-extension.html
TxDOT - I-10 and Scenic Loop Road
https://www.txdot.gov/inside-txdot/projects/studies/san-antonio/i-10-scenic-loop.html.html
TxDOT - I-10 W Perimeter
https://www.txdot.gov/inside-txdot/projects/studies/san-antonio/i-10-w-perimeter.html




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This page and all its contents are Copyright 2017 by Brian Purcell

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