Good old DB. To help friends planning a rail journey in Germany, and having heard another friend's tale of miserable snowballing delays and reroutings, I went to the page on DB's English-language site where I've consulted specific construction news in English in the past (https://int.bahn.de/en/booking-infor...truction-sites).

Here's what it currently says:

Important information

Please note that our information on Deutsche Bahn construction sites has been summarised in a new Internet portal with immediate effect. This new portal will only be available in German until further notice.
Switch to the new construction site portal: https://www.bahn.de/bauarbeiten

​​DB's customer-friendliness at its best.