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

This page last updated December 4, 2018

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I-10 West projects map

TxDOT has several recently completed, in-progress, or upcoming projects 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 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. None of these projects are related to the recent Kendall Gateway study.

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


1   SH 46 to Scenic Loop Road

This project will overhaul and redesign the interchanges at SH 46 (W Bandera Road) and at Business 87 (S Main Street), complete the westbound frontage road between Business 87 and Christus Parkway, convert all the frontage roads to one-way, and change the locations of the entrance and exit ramps. 

At SH 46, the 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 service streets 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 Business 87 interchange is being rebuilt as 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 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. A portion of the existing westbound access road at the southeast corner of the interchange will be converted to a service street to maintain access to local properties after the access road is realigned.

At Scenic Loop, an eastbound to westbound turnaround will be built and the entrance and exit ramps north of Scenic Loop will be relocated further north.

Status:

  • Work started in June 2018
  • Estimated completion: 4th quarter 2020 (10% complete)

Click above to see the schematic for this project


2   Scenic Loop to Bexar County Line

This project will convert the access roads between Scenic Loop Road and Balcones Creek Road to one-way, relocate the entrance and exit ramps further south and construct new entrance and exit ramps for Balcones Creek Road, and construct new higher access road bridges over Balcones Creek. The existing "lower" access roads and crossover under I-10 at Balcones Creek will be kept.

  • Projected start: Mid 2019

Click above to see the schematic for this project


3   Kendall County Line to Fair Oaks Ranch Blvd.

Ths project will construct a new overpass for I-10 at Balcones Creek Road and the access roads will be converted to one-way from Balcones Creek Road to Fair Oaks Ranch Parkway. An eastbound to westbound turnaround at Fair Oaks Ranch Parkway will be also built as part of this project (not shown in the schematic.) The access roads between Balcones Creek Road and Scenic Loop Road will be converted to one-way in a future project (see #2 above.)

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

  • Project currently underway
  • Estimated completion: TBD (currently 0% complete)

Click above to see the schematic for this project


4   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 have been converted to one-way and the entrance and exit ramps 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: Late 2018 (currently 96% complete)
  • The new overpass opened weekend of April 28th, 2018

  • 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.)
See schematic under #5 below.

5   Fair Oaks Ranch Parkway/Tarpon Drive to Ralph Fair Road

A new overpass for I-10 has been built at Old Fredericksburg Road connecting it to Buckskin Drive. The access roads have been 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 relocated.

  • Project currently underway
  • Estimated completion: Late 2018 (currently 94% complete)

  • Q: When the access roads changed to one-way, why was only one lane open for the first couple of weeks?
    A: This is done as a safety measure while motorists got used to the new one-way pattern. By blocking the former opposing lane, drivers were forced to go the correct direction. The "new" lane was opened the week of October 1st.

  • Q: Why weren't all the new ramps opened at the same time?
    A: Two of the new ramps are at the location of the ramps south of Fair Oaks (see schematic for #5 above) and two more are located where the former ramps north of Ralph Fair were, so those ramps had to stay open and the new ramps at those locations couldn't be built until the replacement ramps at the new locations near Buckskin/Old Fredericksburg were open. Those new ramps, because of their alignment, couldn't be opened until the access roads were one-way. To be able to have opened all eight new ramps at once would have required closing the four old ramps at Fair Oaks and at Ralph Fair for several weeks before the other ramps opened. This would have forced all NB traffic headed to Fair Oaks to exit at Ralph Fair Rd. and use the access road for that entire distance (and the same for SB traffic coming from Fair Oaks) and would have forced all SB traffic headed to Ralph Fair to exit at Fair Oaks and follow the access road that entire distance (and the some for the opposite direction.)  It should be obvious how bad of an idea that would have been.

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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