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San Antonio Area Freeway System
PROJECT INFO: I-10 East Expansion (Loop 410 to Loop 1604)

This page last updated December 1, 2018

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Project locationLocation: I-10 East from Loop 410 to Loop 1604

Status: Under construction (0% complete)

Description
This 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.

This 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 anticpated that funding for the mainlane expansion project would not be available for several more years, but recent funding changes accelerated the funding for this project, so that's why it is now overlapping the earlier project.

This project does not make any changes to the Loop 410 or Loop 1604 interchanges; future projects will rebuild those interchanges with elevated connectors (flyovers).

How this project will help
This 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.

Timeline
Construction started in October 2018 and is expected to be complete in early 2022. Click here for the latest status report on this project.

Schematic
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.

Note 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.

(Note: the schematic is somewhat large and may take a few seconds to open.)




Other sites of interest
TxDOT - I-10 East from I-410 to LP 1604
https://www.txdot.gov/inside-txdot/projects/studies/san-antonio/i10-i410-lp1604.html




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