I was part of a HAER team that documented numerous covered bridges located throughout the US. We built multiple 3D models that illustrate the various truss types found in covered bridges. 

The fly-through is of a model I produced of the West Union Bridge. Most of the timber elements were made in AutoCAD, while the stone abutment is a mesh produced in 3DSystems GeoMagic. The topography is from scan data collected in the field, removed of foliage in LASTools and smoothed in 3dsMax. The animation was completed in 3dsMax.

More documentation of covered bridges and other historic sites can be found online at the HABS/HAER/HALS Collection at the Library of Congress. The collection can be accessed online here.