Drivers traveling through the I-35 and Parmer Lane intersection will need to adjust to driving on the left side of the road as the diverging diamond construction is nearing completion.

The new intersection is on track to open to traffic in early October, said Brad Wheelis, a public information officer with the Texas Department of Transportation.

The diverging diamond will temporarily switch the lanes when Parmer crosses I-35, so drivers will be on the left side of the road. The design allows for through and left-turning traffic to move through the intersection simultaneously.

The design is not the only one of its kind on I-35: It has already been implemented at I-35 and RM 1431. TxDOT is also working on a diverging diamond intersection at Williams Drive and I-35, which has an anticipated completion of mid-2023, according to the agency's website.

“After the bridge is in the [diverging diamond intersection] configuration, crews will construct the median island across the bridge; finalize pedestrian elements; install and complete drainage, wastewater and high-mast illumination,” Wheelis said.

He added TxDOT will also reconstruct the North Lamar Boulevard and Parmer intersection. That part of the project includes implementing right-turn lanes and dual left-turn lanes from Parmer to North Lamar.

The entire project is expected to be complete in early 2022. It costs $24.6 million with funding coming from Texas Clear Lanes and the Capital Area Metropolitan Planning Organization.