I was a docent when the roof collapsed, which happened at night while I was tucked up in bed. The original design had the trusses for the round roof resting on the central uprights, but the designer did not have any cross-connection between them. Over 120 years, the roof slowly rotated a couple of trusses off the uprights and the big snow finished the process.
The new roof trusses are steel with fake rivet plates. They look very original! The gold dome over the central uprights was taken down and rebuilt as it was 80% rotten.
Many of the wooden parts of the locos underneath were crushed. The metal was fine. One old wooden coach was destroyed, unfortunately.
(After the 1927 Centenary Fair of the Iron Horse they kept the show for a few years and the roof fell in in 1930. They had more resources to fix them in those days.)
After this latest catastrophe, the Museum, which owns 1.5 miles of land, being the old trackbed to the main line, built a Restoration Faciliity and has rebuilt most of the damaged locos and started on other items that needed work.
The insurance company clamped down on casual Docents, so I never got to work there again.
