Bypass to open on Monday 31 March… though possibly only part of it? Needs survey and updating.
http://www.scotsman.com/news/transport/bypass-set-to-protect-britain-s-most-bashed-bridge-1-3357274?

Glen Trool village missing from map

The Devil's Porridge Museum has opened, about here - needs survey
http://www.devilsporridge.org.uk/contact/

I believe the good ol' Battery is closed now and being converted into flats

Station overflow parking

Walworth Castle

No left turn.

Incorrect speed limit. Reported speed limit is 130 km/h

Tafield substation

Need to check this is actually a tunnel. It doesn't look like it based on
http://www.cyclestreets.net/location/62817/

In particular, currently this section is not routeable, so if it is at-grade, it needs to be joined to the road:
http://www.cyclestreets.net/journey/43154749/