Wiser was issued a task order under our Field Survey IDIQ contract to support the TDOT Structures Division by providing as-built data for a newly constructed bridge that was being transferred to the National Park Service. Specifically, the bridge chamber component was in question. In order to verify this, the bridge needed to be measured with an extreme level of detail.
The data was captured using a Riegl VZ-400 static lidar scanner. The data capture was repeated in differing weather conditions to measure the effect of temperature changes. The data sets were reduced and a survey report was provided detailing chamber changes along the bridge at 5 foot intervals. Wiser worked with TDOT to ensure that they could utilize the full potential of the lidar data within their internal processes.