We had the pleasure most recently to have been involved in the design and construction management of a stone and steel railway bridge for a miniature railway with a 7.25″ gauge track. The bridge spans 30 feet and will connect buildings within a 160 acre estate.
Some history of 7.25″ gauge is provided on this web site. 7.25″ Gauge Society. The video below was lifted from their web site. The railway is to a scale of 1:8, generally referred to as 1.5″ scale.
We hope to post photographs and a video of the real thing in due course.