I-35E Corridor Reconstruction Project in Dallas County to Enhance Traffic Flow

A significant infrastructure project is underway in Dallas County, Texas, aimed at improving traffic flow along the I-35E corridor. The $888 million project, which officially broke ground in early March 2026, will reconstruct and widen a 6.39-mile section of I-35E from I-635 to the Denton County Line. The project is expected to be completed in 2031.

Project Details and Scope

The project will expand I-35E from six to twelve lanes, increasing capacity for motorists. Improvements will also be made to street grid connections, both over and under the highway, to enhance access to downtown Dallas and surrounding areas. The project includes improvements to rail crossings and the reconnection of city streets and southern neighborhoods.

Goals and Benefits

According to the Texas Department of Transportation (TxDOT), the I-35E Phase 2 project is part of the Texas Clear Lanes Initiative, a statewide strategic plan focused on reducing congestion on major highways. The project aims to:

• Decrease congestion
• Improve safety for motorists
• Enhance integration with the Cedars area and downtown Dallas
• Promote economic development
• Increase accessibility and connectivity

Impact on Local Businesses

While the project is expected to bring long-term benefits, local businesses anticipate challenges during the construction phase. Concerns center around potential detours and reduced accessibility for customers. Business owners are hoping for continued support from the community throughout the estimated two-year construction period.

Project Team and Partners

The project is a collaborative effort between TxDOT, as the owner and manager, and Lone Star Constructors, the design-build contractor. Lone Star Constructors is a joint venture between Fluor Heavy Civil, LLC and Austin Bridge & Road, LP.

Additional Information and Resources

• I-35E Phase 2 – Texas Department of Transportation
• Keep Dallas Moving: I-35E Phase 2
• I-35E TEXpress Lanes

For updates on ramp and lane closures, please click here.