The Henley bridge was constructed in Knoxville, TN in 1931. The deck arch bridge spanned the Tennessee River and was the main source of traveling to and from the urban center. The re-imagination focused on converting the structure into a double-arch construction rather than the original deck arch design. This alteration would nearly cut the overall weight in half, as well as double the tensile and compressive strength of the bridge. The difference in materials from when the bridge was first constructed in the early 1900's has an impact on those changes, but most of the new-found strength came from the improved design. The proposed alteration would also allow for an extra lane to relieve traffic coming to and from the downtown area. 

 

The design began from a sketch, which was quickly translated into a 3d model using Rhino. The existing physical environment was imported using CadMapper, whereas the beams were manually constructed using Karamaba in Grasshopper. Creating the bridge in Karamba allowed for accurate weight and strength testing of each beam, as well as the overall structure of the bridge.