Specifications include, but are not limited to: A.) Structure Survey:
Typically include field surveying of bridges, culverts, weirs, diversions,
levee and/or non-levee embankments, buildings, and stream channel cross
B.) Bathymetric Survey:
Is generally required for larger rivers where the channel provides
substantial flood conveyance. The data may be merged with the LiDAR
bare earth model to generate a merged terrain product, or manually
integrated into hydraulic model cross sections.