The Skeleton Bridge of Boyup Brook
Today we’re near the town of Boyup Brook, hiking out to experience a massive wooden trestle railway bridge that crosses the Blackwood River. Constructed in 1912, the Skeleton Bridge was in service until 1982. The line spurred from the Bunbury-Manjimup line from Donnybrook and ran to Kojonup. The bridge itself has survived bushfires and multiple floods over the years, so it's well worth the short walk to view as it’s an amazing example of abandoned railway infrastructure.
Sources:
https://www.thelifeofpy.com/skeleton-bridge-walk
https://www.boyupbrooktourism.com.au/walk-trails.html
https://twitter.com/BoyupBrookPol/status/690487563094773760/photo/1
http://inherit.stateheritage.wa.gov.au/Admin/api/file/d7176984-4d2a-58c4-741b-b515e1cbada4
https://www.railheritagewa.org.au/archive_scans/displayimage.php?album=121&pid=24528
https://trove.nla.gov.au/newspaper/article/232709439
https://www.bibbulmuntrack.org.au/news/latest/historic-long-gully-bridge-lost-to-fire
https://commons.wikimedia.org/wiki/File:Flaxmill_Caravan_Park,_Boyup_Brook,_April_2022_07.jpg
Links to WA State Library resources:
Boyup Brook-Katanning branch line : submission for seasonal running and closure.
Boyup Brook - Katanning branch line report / J. Georgiades, A. Mortimer.
Railway branchlines study : Narrogin - Wagin - Boyup Brook branchlines / Peter Johnstone.
(Sorry, I can't remember exactly which reference below matches which link above.)