As reported by lwowecki.info:

Over the past few days, the safest route, although heavily congested with traffic, was the detour from Lwówek Śląski through Rakowice Wielkie, Włodzice Małe and Mierzwin.

It adds: – Today, it is also possible to use the detour through Rakowice Wielkie, Rakowice Małe and Włodzice Wielkie to provincial road 297.