Home | About me | Contact | What's new
 

San Antonio
Freeway system
  Primer
  History
  2015 traffic statistics
  Freeways
    I-10 East
    I-10 West
    I-35 North
    I-35 South
    I-37
    Kelly Pkwy
    Loop 410 (I-410)
    Loop 1604
    SH 151
    Spur 371
    US 90 West
    US 281 North
    Wurzbach Pkwy
  Construction projects
    I-10/Fair Oaks
    I-10/HOV
    I-10/Leon Springs
    I-10/Woodlake
    I-35/Loop 410
    LP 1604/Bandera
    LP 1604/Kitty Hawk
    LP 1604/Potranco
    LP 1604/US 90
    SH 151/LP 1604
    SH 151/Loop 410
    US 281 North
    US 90/Loop 410
  Etcetera
    HOV lanes
    Media galleries
    Tollway system
      LP 1604 mngd lanes
    TransGuide
    10/1604 yield signs
    History of 281/410
Other roads & more
FAQs


Twitter

Facebook

Blog

ADVERTISEMENT

San Antonio Area Freeway System
PROJECT INFO: I-10 from Dominion to Ralph Fair

This page last updated December 4, 2016

ADVERTISEMENT

Project locationLocation: I-10 West from Dominion Dr. to Ralph Fair Rd.

Status: Nearing completion (81% complete)

Description: This project will widen the access roads in each direction and convert them to one-way operation.  The existing access road through Leon Springs will remain two-way and a new one-way "bypass" access road will be built from the southern end of Leon Springs to Boerne Stage Rd. in the existing I-10 right-of-way (i.e. behind the elementary school.)  Modifications will be made to all the existing entrance and exit ramps that will straighten and lengthen them and, in a couple of cases, relocate them.  In addition, two new ramps will be added: an EB exit for Dominion and a WB entrance from Dominion.  Boerne Stage Rd. under I-10 and its approaches on either side of I-10 will be widened.  Similarly, the Ralph Fair Rd. overpass and its approaches will also be widened.  New turnarounds will be added WB to EB at Boerne Stage and at Ralph Fair and EB to WB at Dominion.

This project will not make any modifications to the I-10 main lanes.

How this project will help: The intersections of Boerne Stage Rd. and I-10 and Ralph Fair Rd. and I-10 experience recurring congestion daily due to insufficient capacity and bottlenecks caused by obsolete ramp arrangements and the two-way access roads.  Converting the access roads to one-way operation and widening them will significantly increase capacity and improve safety both along their length as well as at their intersections with Boerne Stage and Ralph Fair due to improved signal operations.  The new "bypass" access road on WB I-10 will take traffic destined for Boerne Stage Rd. out of Leon Springs allowing the existing road to be used solely for local traffic and thus remain two-way for the convenience of those motorists.  (The "bypass" access road may be continued northward from Boerne Stage in a future project as warranted.)  The new turnarounds will better facilitate local traffic affected by the one-way access road conversions.  The widening of the Boerne Stage underpass and Ralph Fair overpass will increase capacity at those intersections.  Longer and straighter entrance and exit ramps will improve the safety and efficiency of those maneuvers which should also help to reduce some of the congestion on the I-10 mainlanes in those areas.  Moving the EB entrance from Boerne Stage further downstream will allow it to better capture EB traffic leaving the HEB shopping center.  The new EB exit for Dominion will move through traffic destined for Dominion Dr. or other points south of Boerne Stage to its own exit and the new WB entrance ramp from Dominion will remove that traffic from Leon Springs.  Modeling done on these improvements shows an anticipated 36% reduction in morning peak travel time a whopping 75% reduction in evening peak period travel time.  Research also suggests a 43% reduction in crashes, especially on the access roads.

Timeline: Construction on the Ralph Fair section of the project (everything north of Boerne Stage Rd.) started in April 2014.  The remainder of the project got underway in April 2015.  Both projects are expected to require approximately 18 months to construct.  Click here for the latest status report on this project.

Schematics: Click on the image below to see an annotated overview schematic of this project.  These plans are courtesy of TxDOT and is subject to change.  Annotations are my own.

 (Note: the schematic is over 2MB in size and may take a few seconds to open.)


 


Other sites of interest
TxDOT - I-10 (Dominion Drive to Ralph Fair Road - FM 3351)
http://www.txdot.gov/inside-txdot/projects/studies/san-antonio/ih10-dominion.html




If you found this informative, please consider making a small donation to help support it. Thanks!
This page and all its contents are Copyright 2017 by Brian Purcell

NOTICE
The information provided on this website is provided on an "as-is" basis without warranties of any kind either express or implied.  The author and his agents make no warranties or representations of any kind concerning any information contained in this website.  This website is provided only as general information.  The author expressly disclaims all liability with respect to actions taken or not taken based upon the information contained herein or with respect to any errors or omissions in such information.  All opinions expressed are strictly those of the author.  This site is not affiliated in any way with any official agency.