Cornerstone provided the design of the foundations for a new four-span prefabricated steel truss pedestrian and sewer bridge over the West Branch Alamo Creek in San Ramon.  Cornerstone was brought onto the project to assist the project developer, Toll Brothers, with obtaining Contra Costa County approval for the foundation design, which had previously been completed by another consultant. Cornerstone was able to optimize the foundation design and obtain the County's approval of the project within two months of being brought onto the project.