Are you sure it's actually closed?

With a long-term block booking, it's likely that there will be some nights when they make do with lane closures, some nights when they only close one direction, and some nights they skip altogether.

Waze gets a feed from Highways England which ought to include the A11 when they do actually close it.

Unless we've got evidence, e.g. UR's or your own observation of a physical closure, that the feed is not working for the A11 for some reason, I'd be reluctant to put in a block closure.

BTW, since this is your first post, welcome to the Waze forum. Please don't be put off by slightly negative response to this one. . And do have a go at editing yourself, have you seen the Quickstart guide?

Ian

The A11 has been marked as closed this evening by our automatic system that receives real-time information from Highways England. This is scheduled to be repeated every night until May 14th, though they might skip weekends or move the end date.

Thank you for letting us know about it.