25 May 2024 / #news Linked: CBC radio on the concrete roof issues at St-Laurent StationPhoto: An O-Train at St-Laurent station.CBC’s Ottawa Morning had an interesting segment on Thursday about the situation with the ceiling at the St-Laurent O-Train Station.The station re-opened on Wednesday. Officials had closed it for a few days to passengers after an inspection found evidence of corrosion in the concrete roof slab in the station tunnel, which predates the LRT.