MoPac Construction Phases & Future Landscaping

Mopac Construction Phases

There are 3 phases of the MoPac/Slaughter & MoPac/La Crosse project.  As a timeline becomes available, it will be updated.  The 3 phases are:


-Clear right of way and construct temporary pavement for traffic detours
-Begin construction of new mainlanes and ramps
-Widen Slaughter Lane intersection and construct bridge
-Build detention ponds and drainage system


-Continue construction of new mainlanes and ramps
-Construct La Crosse Avenue bridge
-Complete Slaughter Lane DDI and open to traffic


-Complete ramp construction and drainage components
-Complete La Crosse Avenue intersection and open to traffic
-Perform final paving operations for entire project

Planned improvements include:

-Constructing two mainlanes in each direction on MoPac underneath Slaughter Lane and La Crosse Avenue.  Click here for the
-Constructing a Diverging Diamond Intersection at MoPac and Slaughter Lane (check out an example animation here)
-Improving the intersection at MoPac and La Crosse Avenue
-Improving/adding pedestrian and bicycle accommodations – including building a shared-use path on the west side of MoPac from Slaughter Lane to La Crosse Avenue

To learn more about the intersections click here.

Future Landscaping

Once construction is complete on the MoPac Intersections project, TxDOT will utilize the Green Ribbon Program to plant native species within the right of way along the project limits. We are excited about the program and have some initial concept ideas ready to share.

Learn more about the Green Ribbon Program and other Green Ribbon Program plantings in the Austin District.

Updates will continue to be shared via email. For additional information, visit and search for “MoPac Intersections” to visit the project page. To sign-up please send an email to with “updates” in the subject line.

MoPac Intersections Project Team
(512) 693-7425
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