Antonio Area Freeway System
I-10 East Expansion (Loop 410 to Loop 1604)
page last updated July 17, 2021
I-10 East from Loop 410 to Loop 1604
Under construction (98% complete)
project will widen the I-10 mainlanes from four lanes (two each way) to
six lanes (three each way) plus add auxiliary lanes between the
entrance and exit ramps.
project overlaps and piggybacks on a project already underway to
reconstruct the access roads and ramps between Foster and Graytown,
convert the access roads to one-way, and build the overpass at Woodlake
Pkwy. It was originally anticipated that funding for this mainlane
expansion project would not be available for several more years, but
recent legislation accelerated the funding for this project, so
that's why it is now overlapping the earlier project.
project does not make any changes to the Loop 410 or Loop 1604
interchanges; future projects will rebuild those interchanges with
elevated connectors (flyovers).
Another project is underway to continue this expansion east to Pfeil Rd.
project will help
section of I-10 has been experiencing impressive traffic growth over
the past decade and now experiences regular peak period congestion in
several locations, so the additional lane in each direction should
accommodate anticipated traffic volumes for the next couple of decades.
This project also dovetails on a statewide plan to expand all of
I-10 between San Antonio and Houston.
Construction started in October 2018 and is expected to be
complete in mid 2021.
Below is the detailed schematic for this
project from TxDOT with my own annotations added to help clarify and
explain the various elements. Click on the image below
to open the schematic in a new window that you can scroll and zoom.
that the schematics used here were preliminary and included a section
from just west of Loop 1604 east to Graytown that is not included in this project,
so the transition to four lanes near Loop 1604 is not depicted in the schematic. The
final plans also include a couple of other minor changes; these are
noted in the annotations.
schematic is somewhat large and may take a few seconds to open.)
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