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I‑35 Comal County Projects

This page last updated February 2, 2024

Engineer

Some of these projects are currently in design


One or more of the projects below are still in design. Descriptions below for projects that have not yet gone to construction are based on preliminary schematics and, as a result, details may change before the projects go to construction. This page will be updated when final schematics for each project are available.

My I-35

The projects below are already planned, but in early 2024, TxDOT began a new study for future projects in the I‑35 corridor. For more information on that study, see the Austin to San Antonio Link Study website.

Projects map

TxDOT has had several projects underway or in the works along the I‑35 corridor in Comal County to improve/reconfigure intersections and overpasses, adjust or reverse entrance and exit ramps, and convert the access roads to one-way operation where they were previously two-way. This page contains information about these projects.

Note that none of these projects will add any new through mainlanes to I‑35 itself. Planning is underway for future projects to do that. However, these projects do include the construction of several new or reconstructed overpasses on the I‑35 mainlanes.

The conversion of the access roads to one-way from Conrads Rd./Kohlenberg Rd. north of New Braunfels to FM 1102/York Creek Rd. (project #4 below) was the final project to convert all of the I‑35 access roads to one-way from the Medina River south of San Antonio all the way to Hillsboro.

Some of the descriptions below include snippets of the schematic; full schematics are at the bottom.



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On this page:


1   FM 2252 to Schwab Rd.

Status: Complete

Description
This project did the following:

Schwab Rd.interchange schematic

Schwab Rd. interchange
(Schematic courtesy of TxDOT)


2   Schwab Rd. to Business 35 (North)

Status: Unfunded; no estimated start date (may be broken into smaller projects)

Description
This project will do the following:

Engel Rd. proposed 'dogbone' interchange schematic

Engel Rd. proposed "dogbone" interchange
(Schematic courtesy of TxDOT)

Business 35 South proposed 'dogbone' interchange and roundabout schematic

Business 35 South proposed "dogbone" interchange and roundabout
(Schematic courtesy of TxDOT)


3   I‑35 at FM 725

Status

Description
This project is making the following intersection improvements:

FM 725 intersection schematic

FM 725 intersection
(Schematic courtesy of TxDOT)


4   Business 35 (North) to FM 306

Status: Completed in 2023

Description
This project did the following:

FM 306 partial Displaced Left Turn (DLT) intersection schematic

FM 306 partial Displaced Left Turn (DLT) intersection
(Schematic courtesy of TxDOT)


5   FM 306 to Watson Lane area

Status: Substantially complete

Description
This project has done the following:

Conrads Lane/Kohlenberg Rd. intersection schematic

Conrads Lane/Kohlenberg Rd. intersection
(Schematic courtesy of TxDOT)


6   Watson Lane to Hays county line

Status: Unfunded; no estimated start date

Description
This project will do the following:

FM 1102/York Creek Rd. intersection schematic

FM 1102/York Creek Rd. intersection
(Schematic courtesy of TxDOT)


Schematics

Click on one of the images below to open the corresponding detailed schematic for this project from TxDOT with my own annotations added to help clarify and explain the various elements. The schematic will open in a new window that you can scroll and zoom.

Note that this is the full corridor schematic and includes all the changes above. Also note that some of the changes shown in the schematic near FM 1103 are actually from the preliminary designs for the I‑35 NEX project and are anticipated to be done as part of that project; they are shown in these plans to provide context for how that future project relates to the changes to be made in the first project on this page.

FM 1103 to Guadalupe River

Schematic thumbnail
Guadalupe River to Hays county line

Schematic thumbnail

Click an image above for a full-sized schematic of this project


Other sites of interest

TxDOT - I‑35 Comal County Operational Improvements
https://www.txdot.gov/inside-txdot/get-involved/about/hearings-meetings/san-antonio/111517.html