LiDAR Survey of Chief Standing Bear Memorial Bridge
To establish a base survey for reference against future movement and erosion of the north bank of the Chief Standing Bear Memorial Bridge, the South Dakota Department of Transportation requested a survey of an almost-vertical rock face, below the bridge abutment and adjacent to the Missouri River.
Our Riegl VMX 450 mobile Light Detection and Ranging (LiDAR) scanner was securely fastened atop a boat on the Missouri River. The choppy water created some challenges for the operation and the unit but the inertial measurement unit (IMU) on the scanner could maintain or correct for the conditions.
Now that the base survey is established, the South Dakota Department of Transportation can identify any future movement in the abutment and take corrective action sooner, thus saving taxpayer dollars and enhancing motorists’ safety.
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