Sundt improved a heavily utilized stretch of the Loop 375 Transmountain Road from Exit 6 on Interstate-10 to east of the Franklin Mountain Park entrance, bringing much-needed traffic relief to the area. The Texas Department of Transportation project involved widening approximately 3.5 miles of Transmountain Road from two to four lanes (with frontage roads), construction of four grade-separated intersections, hiking and biking trails, and exit and entrance ramps. The project also included direct connectors from Loop 375 west to I-10 east and I-10 west to Loop 375 east.