from the FAQ:
"UPDATE: On Oct 29, 2019, the bridge was raised by 8 inches to match the grade of the Duke St. level crossing. This change improves the overall grade of the track and may improve traffic safety due to the additional clearance over the road"
The name of the site/channel predates that change
Video covering the change:
www.youtube.com/watch?v=YPt4ijPFzc8
(
LP, Sat 10 Sep 2022, 14:16,
Reply)