Hi, the TL;DR is that the road was closed and it looked like there was major construction work going on, rather than just a simple closure.

To be more descriptive, when I was there on 25 April, that section of the roundabout was closed off. It seemed like a permanent change to the road system rather than a temporary closure. The Mapbox Satellite layer seems to confirm this. To be on the safe side, I marked the section of the roundabout as 'under construction', in case it reopens in a different form. However, I didn't update the surrounding roads.

It would be helpful to take a survey trip to the area to update everything properly. Unfortunately, I don't live in the area.