I overheard station staff at Crouch Hill talking to another passenger about the November 18-January 14 closing, and apparently Network Rail is proposing to raise the Crouch Hill bridge this time after all, contrary to what was said earlier. Unfortunately the train arrived before I had the chance to ask questions, but I'll see if the same person is around tomorrow and able to give more details.
Comments
http://barking-gospeloak.org.uk/documents/20170728_newsletter.pdf
Muppets.
According to this it seems that trains are back soon
https://www.networkrail.co.uk/running-the-railway/our-routes/anglia/gospel-oak-barking-electrification/