As reported by the Wrocław branch of the General Directorate for National Roads and Motorways:

On the nights of 3/4 June 2021 and 4/5 June 2021 (from 10:00 p.m. to 6:00 a.m.), work will be carried out on the road signs mounted above the carriageway on the A4 motorway.

It adds:

As a result, on the section from the Bielany Wrocławskie interchange to the Karwiany Toll Plaza, both carriageways of the motorway will experience disruptions, including closure of the right lane and a speed limit:

  • 3/4 June 2021 – work will be carried out on the southbound carriageway, i.e. toward Katowice;
  • 4/5 June 2021 – work will be carried out on the northbound carriageway, i.e. toward Wrocław.

And appeals:

Please exercise caution.