Chisholm Trail Road at Old Settlers Boulevard Intersection Improvement

American Structurepoint provided preliminary engineering and final PS&E design services for intersection improvements at Old Settlers Boulevard and Chisholm Trail Road. Our engineering professionals designed new right-turn lanes on Chisholm Trail Road for the northbound to eastbound and southbound and westbound movements. Our preliminary engineering services included the 30% PS&E plans, survey and mapping, environmental clearance, preliminary drainage design, traffic control layout, estimates of probable construction costs, and cross-sections for right-turn lanes on Chisholm Trail Road onto Old Settlers Boulevard.

Services included preparing plans, specifications, and estimates and related documents requested by the City as well preparing a project work schedule. These included traffic control plans for the project, an intersection layout detailing the pavement and drainage design, hydrologic analysis and design, drainage standards, SW3P, TCEQ Recharge Zone Exception, and environmental services. American Structurepoint was able to bring innovation and value to our client by developing a sloped fill alternative that eliminated a retaining wall near the CVS pharmacy detention pond. Our analysis identified that the slope could be implemented without an effect on the pond, resulting in a cost savings of $90,000 for the City of Round Rock. Lastly, by using3D design tools to carefully redesign the drainage system, we were able to avoid a costly rerouting of an existing utility manhole. This prevented a utility relocation that would have taken six months and reduced utility relocation costs by $0.5 million.