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

This page last updated May 26, 2018

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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 developed, 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 was recently completed. This project moved 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 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. Although not shown on the schematic, the park and ride lot will be kept in its current location but reconfigured.

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 future interchange project. It has been let and should start construction this summer.

Westbound frontage road:
  • This project started in 2015 but was delayed due to performance issues with the contractor 
  • This project is now complete

Interchange:

  • Projected start: Mid 2018 (will also include project #2 and part of #3 below)

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 intersection. A new, wider overpass will replace the existing overpass and will end in a "T" at a realigned eastbound access road. There will be turnarounds for both directions. A new westbound access road will continue beyond the new intersection with and join with the new frontage road recently completed near Christus Parkway. 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 has been let and will start construction this summer. The final project includes modifications to accomodate 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 (will also include project #1 above and part of #3 below)

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 had to be lengthened and rebuilt higher to improve clearance. Additional turn lanes have been added on the access roads.

  • Estimated completion: Spring 2018 (currently 97% 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: The section north (west) of Scenic Loop Rd. is part of a single project that includes #1 and #2 above and is set to start in mid 2018. The section south (east) of Scenic Loop Rd. is currently 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 has been 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 as part of project #6 below. 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 86% complete)
  • The new overpass opened weekend of April 28th.
  • The new turnaround will be closed until the project to convert the access roads to one-way (#6 below) is complete later this year. This is because having a turnaround intersect with a two-way access road creates dangerous conflicts.

  • Q: Why are the new entrance and exit ramps being removed?
    A: Those ramps were built as temporary ramps to be used to detour traffic during the several mainlane closures during the project. They were never intended to be (and therefore, not built to be) permanent. It may seem like wasted money, but as mentioned, they were built to be temporary, ergo they were cheap and the cost was more than made-up by the reduced delays to the public they facilitated during the mainlane closures. They will be replaced by new permanent ramps in a different configuration that are being built as part of other projects (see #4 above and #6 below.)

Click above to see the schematic for this project


6   At Old Fredericksburg Road/Buckskin Drive

A new overpass for I-10 has been 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 87% 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 2018 by Brian Purcell

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