There are two sections to the N scale bridge: 23 inches and 13 inches. So, in scale feet, 306 feet and 173 feet. I had never computed that before as the model length is necessitated by the yard track arrangement and my failure to plan ahead. I do have pictures of the prototype and the longest span seems to be slightly too long; the short span is probably okay. It would have been better to make it into three separate spans. The prototype consisted of 6-8 span lengths, each span about 200 feet.
