Wolf Creek Bridge All reconstruction of this 1928 bridge in Cocke County, Tennessee, were to match and be based on the foundations of the remaining items. W&A used ground-based laser scanning to as-built the structure, giving a greater redundancy of measurements to insure that the bridge would match the existing foundations. Using traditional techniques would have yielded about 200 to 300 points of data. The laser scanner provided more than 21 million points of data. We delivered as-built plans with the necessary elevations and dimensions to precast the reconstructed bridge components thus saving the Contractor months of time.
Chemical Plant For three years, W&A used extensive scanning applications to help construct, check, and as-built a new chemical plant in the Southeast. Through the advanced technology of laser scanning, W&A checked plumb values for steel and concrete structures, created anchor bolt and bolt-hole as-builts, embed as-builts, precast building models, theoretic site control, and pipe as-builts, all needing to be set within a tolerance of one-eighth of an inch. Additionally, W&A used the 3D laser scanning to as-built and modify a 32-foot diameter storage silo. From the as-built data W&A was able to deliver drawings that were used to modify 16 3-inch diameter anchor-bolt holes thus allowing the silo to fit the erected steel perfectly. This process saved the owner months of delays and expenses.