I-35 Capital Express South Project
Projects
Project overview
The project will add two high-occupancy-vehicle (HOV) managed lanes in each direction along I-35 between SH 71/Ben White Boulevard and SH 45 Southeast. In addition, the project will include a southbound I-35 bypass lane that will allow traffic to bypass Stassney Lane and William Cannon Drive. Entrance and exit ramps will also be reconstructed and relocated. Pedestrian and bicycle paths will also be added.
Major impacts/activity
The eastbound and westbound SH 71/Ben White Boulevard to southbound I-35 flyovers will be closed nightly beginning Sunday, Sept. 20 to Thursday, Sept. 24, from 9 p.m. to 6 a.m. for bridge column work.
Detours: (see map below)
- Drivers on eastbound SH 71 will use the S. Congress Avenue exit and turn onto the frontage road to access the I-35 mainlanes.
- Drivers on westbound SH 71 will use the Burleson Road/Woodward Street exit and turn onto the frontage road to access the I-35 mainlanes.
Drivers should remain alert, follow signs, and expect delays.
Updates may not be available Sept. 19-27 due to scheduled maintenance. Go to @TxDOTAustin for current lane closures.
Latest update
Schedule
- Construction start: November 2022
- Anticipated construction completion: Late 2028, weather permitting
Milestones
- Construct elevated lanes from SH 71/Ben White Boulevard to Slaughter Lane
- Construct at-grade managed lanes from Boggy Creek Drive to SH 45 Southeast
- Reconstruct I-35 bridge over South Boggy Creek
- Reconstruct I-35 bridge over Onion Creek
- Widen the I-35 bridge over Slaughter Creek
- Reconstruct I-35 entrance and exit ramps
- Construct shared-use paths along frontage roads
- Perform final paving and striping to finalize project
Funding
- Construction cost: $548 million funded by CAMPO and TxDOT
Contractor
- Fluor Corporation
