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S1 Mysłowice (Kosztowy) – Bielsko-Biała (Suchy Potok)

under constructionstage: construction
PLN 2.3 billion
contract value · data from 17 Oct 2024net or gross: not recorded≈ PLN 2.3 billion (value-by-stage, est., nominal)

Construction of about 40 km of the S1 expressway on a new alignment between Mysłowice and Bielsko-Biała, under four GDDKiA contracts: Mysłowice – Bieruń, Bieruń – Oświęcim, Oświęcim – Dankowice and Dankowice – Suchy Potok. The contracts are worth almost PLN 2.3 billion in total. The sections from Oświęcim to Bielsko-Biała opened in 2025, and the Bieruń – Oświęcim section opened to traffic in March 2026 and fully in September 2026. The 10 km Mysłowice – Bieruń section is still under construction, with progress above 66 per cent and completion planned for the fourth quarter of 2027.

How it went

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Timeline

  1. Construction startOct 2022
  2. Original dateDec 2026
  3. Current dateDec 2027

Significance

Once Mysłowice – Bieruń is finished, the S1 will be a continuous expressway from Pyrzowice airport to the border at Zwardoń, continuing along the Slovak D3 motorway. GDDKiA reported EU co-financing of almost PLN 441 million for the Oświęcim – Suchy Potok section (agreement of 19 June 2023). GDDKiA attributes the delay of the last section to longer administrative procedures and the contractor's time claims.

Sources 5 · 4 independent

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  1. Interia Motoryzacja17 Oct 2024
    CostConstruction start
    CostŁączna wartość umów na realizację czterech odcinków S1 od Mysłowic do Bielska-Białej to niemal 2,3 mld zł
    Construction startPrace na odcinku Dankowice - Bielsko-Biała rozpoczęły się w październiku 2022 r.
  2. EurobuildCEE22 Jun 2020
  3. GDDKiA (gov.pl)19 Jun 2023
    Investor
    InvestorTo ostatnia umowa w ramach POIiŚ zawarta przez GDDKiA.
  4. Auto Świat13 Apr 2026
    Original date
    Original datePoczątkowo planowano, że prace zakończą się pod koniec 2026 r.
  5. Auto Świat9 Sep 2026
    StatusStageCurrent date
    StatusW budowie pozostaje jeszcze odcinek Mysłowice (węzeł Kosztowy) – Bieruń.
    StageJak poinformowała GDDKiA, zaawansowanie prac przekroczyło 66 proc.
    Current dateZakończenie budowy i oddanie do ruchu planowane jest na IV kwartał 2027 r.