​I-35 at 51st Street

Overview

The schematic and environmental process is underway for this project which will improve the southbound frontage road of I-35 in the vicinity of 51^st Street.

Purpose and Need

• Reduced bottleneck at the southbound frontage road and 51st St.
  
• Improved connection to existing U-turn structure
  
• Improved southbound ramp operations between 51st St. and Airport Blvd.
  

End Result

• Realigned southbound frontage road
  
• New southbound collector-distributor road
  
• New roundabout at 51^st St. and the southbound frontage road
  
• Revised ramp configuration on the southbound frontage road
  
• Improved bicycle and pedestrian facilities
  

Funding

• Project development funded by TxDOT and the city of Austin
• Construction not currently funded
  
• Construction cost estimate: $13 million
  

Schedule

• Finalized schematic and environmental documentation: anticipated end of 2015​
  

• Roll Plot​ (document that shows proposed improvements)