Camden Market fire: London Overground unscathed

There's been some confusion over whether last night's fire in Camden did any damage to the North London Line. I happened to be in Camden last night so I couldn't resist going for a look.

I've made a map showing the area affected. The bridge in the foreground carries the North London Line and is a safe distance from the fire. The bridge in the centre is the freight link from Camden Road and South Hampstead via Primrose Hill, which was in the middle of it.

Update: I've just been through on the already-reopened North London Line, and the other viaduct looks fine.