Home | About me | Contact | What's new

San Antonio
Freeway system
    I-10 East
    I-10 West
    I-35 North
    I-35 South
    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/Leon Springs
    I-35/Loop 410
    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
  2015 traffic statistics
    HOV lanes
    Media galleries
    Tollway system
      Loop 1604 tollway
    10/1604 yield signs
    History of 281/410
Other roads & more





San Antonio Area Freeway System
PROJECT INFO: Loop 1604 from Culebra to Potranco

This page last updated March 20, 2017


Project locationLocation: Loop 1604 from Culebra Rd. to Potranco Rd.

Status: Under construction (7% complete)

Description: This project will upgrade Loop 1604 at this location from a four-lane divided highway to a four-lane, toll-free expressway.  This includes adding overpasses at Wiseman Blvd., Military Dr. West, and Potranco Rd. (FM 1957), continuous access roads, and entrance and exit ramps.  The discovery of a sensitive karst feature along the western edge of the right-of-way between Wiseman and Military will necessitate a short bow in the corridor.  Otherwise, the expansion will be completed by converting the existing northbound lanes to the northbound access road, converting the existing southbound lanes to northbound expressway lanes, and constructing the remaining lanes (southbound expressway and access road.)  Unbeknownst to most motorists, the existing divided highway was originally designed to eventually be expanded to an expressway as described above; this will reduce costs, expedite the work a bit and minimize disruption to traffic.

The cost of this project is $62.5 million and is being paid for with local funds from the Advanced Transportation District as part of the larger $825 five-year regional transportation plan announced in January 2014.

How this project will help: Staggering ongoing growth in this area of San Antonio necessitates upgrading this roadway.  The new expressway lanes with overpasses at the currently signalized intersections will allow for continuous free-flowing traffic through the corridor.  The four expressway lanes are anticipated to handle the projected traffic in this corridor for the next 20 years.

Timeline: The official groundbreaking occurred on September 12, 2016.  Construction began in October 2016 and should be complete in mid 2019.  Click here for the latest status report on this project.

Schematics: Below are cross sections and full schematics for this project.  Click on one of the schematic images below to see an annotated overview schematic of each segment of this project.  These plans are courtesy of TxDOT and are subject to change.  Annotations are my own.

 (Note: the schematics below are somewhat large and may take a few seconds to open.)

Northern half (Kilmarnoch to SH 151) (1.49 MB)


Southern half (S of Potranco to Kilmarnoch) (1.43 MB)


Other sites of interest
TxDOT - Loop 1604 from FM 1957 to FM 471

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

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.