Here they are, as seen on Winters SEO - Ruined terrain mk3! I have simplified the building process again which means less trimming and cleaning. They are now 3d printed and lighter than the predecessors.

They will be supplied as a kit, so will require building.  I recommend gel superglue.

This magnificent bridge measures 15.5cm high, 8cm wide and 35.5cm long. It is designed to slot into the columns on any of the other buildings in this range.