On Feb 10, 5:30*pm, Paul Terry wrote:

Mizter T wrote:

For a while I've thought it somewhat ridiculous that there
doesn't appear to be any information on the web about when the routine
maintenance closures of the Rotherhithe and Blackwall tunnels take
place - the whole issue seems shrouded in mystery!

www.blackwalltunnel.com
and
www.rotherhithetunnel.com
are unofficial but very helpful.

Excellent, thanks.

Actually, they look kinda familiar, I think I've come across them
before but obviously subsequently forgot about them - d'oh!

On the Rotherhithe tunnel website I note this re the weekly closures
regime:
---quote---
Due to the Blackwall Tunnel refurbishment programme, the weekly
maintenance closure of the Rotherhithe tunnel has been moved to 00:00
to 08:00 on Saturday morning to ensure that it does not clash with the
refurbishment closures.
---/quote---

Blackwall tunnel is open to southbound traffic all Friday night (i.e.
it's the one 'day off' a week from it being closed).