Manors (Again!)

[limitofshunt]

I know there's been a lot of discussion about Manors Station on here, but I wondered if anyone could confirm when the underbridges either side of the station were replaced? Comparing modern to old photos, the steel spans are different and there were extra spans which extended the platform width over City Road and Trafalgar Street.

My suspicion is that this was tied in with the modernisation of that stretch of track around September 1987, pre-electrification, but I can't find any sources to confirm this.

Anyone got any idea?

Thanks,
Jonathon