BOR Submissions

Slide Inspection of Canal Banks

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High-resolution lidar data were collected and compared to historical contour data to evaluate the condition of canal banks.  Lidar point cloud data with a horizontal accuracy of 0.6-m root mean square error (RMSE) and vertical accuracy of 15-cm RMSE were used to create 1–foot (0.3-m) contours of a canal side-slope that had been slipping. This contour map was compared to the original AutoCAD contours to calculate the amount of change and the areas impacted.  This comparison was not straightforward.