In 2022, Cincinnati implemented a quick-build solution by installing a preformed thermoplastic curb extension on a street within its high-injury network. This temporary measure was aimed at addressing an immediate safety concern until a street rightsizing project could be implemented. The City saw decreases in the 85th percentile speed and the average speed as a result of the project. This project offers a useful model for communities wanting to use quick-build projects to calm traffic quickly and cost-effectively in areas with urgent safety needs. This approach is effective when there is a need for large scale design improvements that cannot be immediately implemented.