Rail disruptions

Dear Arno and Annika,
You always seem to know about planned railway maintenance! Does that mean there is a link on the Sbb rail website which lists forthcoming disruptions to rail services. It would be useful to our planning if we know in advance which days to avoid certain trips. E.g. last year when we did our trip to Locarno via the Centovalli railway we found a short section to Domodossola had bus alternative (very efficiently managed as usual of course) but had we done trip a couple of days earlier we would have avoided this and had slightly longer time in Locarno. I know the website gives this information if you look up a particular date for your journey but I wondered if there was a full list somewhere I could look up now before we go. (Less than a week now so anticipation is building!)
Thanks
Maggie

many thanks Arno
willl follow your advice and use the link as it will be useful to know about planned interruptions at least. I know to be careful as on the day we intended to go up Brienzer Rothorn last year we arrived in Brienz to find there was a rock fall on the line and trips were cancelled! very last minute indeed so we went to Giessbach instead! (the advantages of having reserve plans up your sleeve!)
Maggie