PESC, an H&H company, worked closely with the contractor and partner firms to deliver final plans on an aggressive schedule while maintaining a high level of quality. Many of these bridges required unique design solutions to accommodate complex roadway and hydraulic geometry, including stepped bent caps, custom bearing pads, and cast-in-place retaining walls in front of abutment drilled shafts.

PESC contributed to the addition of a new tolled expressway with three lanes in each direction along an eight-mile section of US 183 between US 290 and SH 71. This corridor is a key link to Austin-Bergstrom International Airport and will provide a nonstop, signal-free alternative to congested IH 35 through Austin. In addition to the expressway, the project includes improvements to the non-tolled US 183 general-purpose lanes and $25 million worth of pedestrian and bicycle facilities that connect to the existing regional trail system. Additionally, the visual appearance of the corridor will be significantly upgraded through aesthetic enhancements and landscaping improvements. Utility coordination was also a key aspect of the design process due to the large number of existing utilities and the integration of state-of-the-art Intelligent Transportation Systems (ITS) along the corridor.