The ground breaking will take place at the parking lot for the Bridge Church, 747 CR 138 in Hutto.
The project, first announced in 2019, spans nine miles from CR 138 at SH 130 to CR 137 in Hutto, across from the H-E-B plus!.
Community Impact Newspaper previously reported the road will be two to three lanes going in each direction with a potential deceleration lane.
When the project plans were presented in Hutto, Williamson County Precinct 4 Commissioner Russ Boles said continuing growth has made it difficult for emergency services, school buses and residents to quickly and safely move through the area.
Mayor Mike Snyder said the Southeast Loop project will add another corridor into Hutto and make it similar to Pflugerville and Round Rock—both of which have multiple multi-lane roadways leading into their cities.
"This has potential in the next 10 years to really help us grow our commercial base," he said.
The projected construction cost is $11,526,789 funded through the voter-approved 2019 Road Bond, according to a county news release. Completion for this segment is late 2022.