The 183 South Project Expressway added capacity to one of Austin's most important arterial roadways, which serves more than 60,000 vehicles a day. The project included the design and construction of six new tolled lanes (three in each direction), new general purpose (frontage) lanes, five grade-separated interchanges, 38 new bridges including four new pedestrian bridges and two new direct connect flyover ramps, along with the installation of intelligent traffic management systems. Enhanced landscaping and aesthetics, trailhead improvements, and bike and pedestrian sidewalks with shared-use paths were also included along the entire corridor to provide east Austin with multimodal connections to the community.
The 183 South Project is the region's largest roadway construction project by the Central Texas Mobility Authority (Mobility Authority). The project signifies a major step forward in continuing a comprehensive regional transportation system that offers greater mobility, reliable travel times and improved access to affordable housing.