Pennsylvania’s Bluff Recession and Setback Act (BRSA) requires that structures located on Lake Erie bluffs be set back from hazardous areas prone to bluff recession. The act requires periodic calculations of bluff recession rates to determine the appropriate municipal setbacks for residential, commercial, and industrial structures.
Historically the monitoring has been done using GPS and field crews. This results in a number of samples of the topography, but not a continuous mapping. Using LiDAR and the appropriate mapping software a complete digital terrain model of the study area can be developed. This could lead to reduced costs and greater accuracy.
Field survey crews take note.
