Three major Central Austin transportation updates to know in 2019

The Capitol Complex Master Plan project includes a tree-lined mall north of the Texas Capitol and the construction of two new office buildings.

The Capitol Complex Master Plan project includes a tree-lined mall north of the Texas Capitol and the construction of two new office buildings.


I-35 at Oltorf improvements


Two new ramps—the southbound Woodward Street exit ramp and the elevated northbound entrance ramp south of Oltorf—will be completed and open to traffic this month on the I-35 at Oltorf Street construction project, weather permitting. Construction of the new southbound entrance ramp north of Oltorf Street will begin in early January, and will require a segment of the southbound frontage road to be reduced to one lane for several months, weather permitting. Ramp improvements being constructed as a part of this project are expected to improve safety by providing longer merging distances and reducing conflict points between drivers.

Timeline: February 2017-mid-2019
Cost: $42.6 million
Funding sources: TxDOT

183 South Project


The region’s largest ongoing transportation project will include the addition of a tolled expressway featuring three lanes in each direction and improvements to the non-tolled lanes. By the end of January, the project will be approximately 60 percent complete, with the new non-tolled lanes complete from US 290 to Martin Luther King Jr. Boulevard. Crews are excavating, installing roadway base and paving the new tolled expressway lanes on the same stretch and should open to traffic this summer. The second phase of the project, from Martin Luther King Jr. Boulevard to Hwy. 71, remains on track to open in 2020.

Timeline: 2016-20
Cost: $743 million
Funding sources: Central Texas Regional Mobility Authority toll revenue bonds, federal loans, Texas Department of Transportation loans

Capitol Complex Master Plan


This project will construct a tree-lined pedestrian mall and two state office buildings on Congress Avenue north of the Capitol building; it is progressing as scheduled. Congress Avenue between 15th street and Martin Luther King Jr. Boulevard remains closed. Concrete barriers surround the construction zone, and wayfinding signs with maps and directional information guide pedestrians to safe walking routes throughout the Capitol Complex.

Timeline: 2018-22
Cost: $581 million (Phase 1)
Funding sources: Texas Facilities Commission