Hundreds of thousands of rail passengers face major disruption later this month with a nine day closure of half the platforms at London Bridge to allow work to rebuild the station.
Exclusive pictures below show work at the station which is part of the £6.5 billion Thameslink project.
Rail managers say the closure will allow new platforms to open in September, a key part of the project. More closure will take pace at Christmas.
ITV Meridian spoke to Dave Ward from Network Rail.
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Patchy rain tonight ahead of another cloudy and breezy day tomorrow. Rain and stronger winds arriving from the west tomorrow evening.
Staying cloudy with patchy rain tonight. Rain and stronger winds arriving from the west tomorrow evening.
Cloudy and breezy with rain arriving from the west later.