S3 expressway (Świnoujście – Szczecin – Zielona Góra – Legnica – Lubawka)

Design-build 2x2 expressway from the roundabout at the Świna tunnel in Świnoujście to the Dargobądz junction. Permanent traffic arrangement introduced on 20 October 2025. The lot contains the Międzyzdroje bypass (2.9 km, a single carriageway from 2008 until 2025, per plwiki). The drawn centreline is 7% longer than the MSBD length.

Design-build 2x2 expressway from the Dargobądz junction to Troszyn, with the Wolin Zachód and Wolin Wschód junctions. The MSBD page gives 7 October 2025 for permanent traffic arrangement on the main carriageways; plwiki gives 20 October 2025 for both Świnoujście – Troszyn lots. Builders are Polbud-Pomorze, Intop (Skarbimierzyce and Warszawa) and PRD Nowogard. The lot includes the Wolin bypass (2.5 km, a single carriageway from December 2003 until 2025, per plwiki). plwiki gives the length as 15.9 km.

Bypass of Troszyn, Parłówko and Ostromice: 6.131 km per plwiki (4.205 km of it dual carriageway), 6.1 km per MSBD. plwiki gives 13 July 2011 for opening to traffic; the MSBD page gives 9 January 2012 for permanent traffic arrangement. Until the Świnoujście – Troszyn lots opened in October 2025 this was the northern end of the S3.

Brzozowo bypass and upgrade of DK3 to expressway standard up to the start of the Miękowo bypass; design-build. The MSBD page gives 22.14 km and plwiki 22.4 km; the drawn centreline between the Brzozowo and Miękowo junctions is 20.0 km, 9% shorter. Opened 27 April 2021 (main carriageway).

Dual-carriageway bypass of Miękowo with the Miękowo junction at its north end. The west carriageway opened on 15 July 2011 and the second carriageway and junction on 16 December 2011. The drawn centreline is 3.7 km.

Dual carriageway built in 1976–1982 with at-grade junctions, opened 20 July 1979 (plwiki). A design-build contract with Budimex, signed 18 December 2017 for 126.28 million PLN (MSBD, VAT basis not stated), upgraded it to expressway standard with the new Kliniska junction and a rebuilt Rzęśnica junction; works finished on 27 April 2021. plwiki gives the length as 19 km; the MSBD page gives about 21 km for the whole project area, with the main works on about 4.0 km. The upgrade is not a separate lot, so the old road stays opened.

Stage I of the new-alignment S3 south of Szczecin, from the Klucz junction on the A6 to Pyrzyce. The contractor was a consortium of Hermann Kirchner, Max Bögl, Energopol Szczecin and Josef Möbius Bau. The MSBD page puts the cost of the whole Szczecin – Gorzów route at 2.3 billion PLN including preparation.

Stage II of the new-alignment S3 south of Szczecin. Opening was delayed by undocumented ground conditions (a wiszar) that needed a new, larger viaduct under a separate contract (plwiki).

Stage III of the new-alignment S3 south of Szczecin, from Myślibórz to the Gorzów Wielkopolski Północ junction. The drawn centreline is 28.1 km, 5% longer than the sourced 26.7 km.

East carriageway of the bypass (11.877 km per plwiki), opened with the Gorzów Północ, Zachód and Południe junctions on 27 November 2007 after a first 2.38 km stage built by the city in 2001–2003. The second (west) carriageway of 11.66 km, contracted on 30 September 2014 and opened on 9 October 2017 (MSBD), for works worth 292.27 million PLN per MSBD (VAT basis not stated), is not a separate lot, so the old road stays opened. The drawn centreline between the Północ and Południe junctions is 9.1 km, 23% shorter than the sourced length, which also counts the approach to the Rondo Zielonogórskie.

New-alignment dual carriageway with the Skwierzyna bypass and two junctions, built as two tasks (19.11 km and 18.54 km per plwiki; MSBD gives 37 km). Opened 15 May 2014 with permanent traffic arrangement. The MSBD page lists building works at 802.99 million PLN and the total cost of the task at 936.60 million PLN.

Bypass of Międzyrzecz built December 2004 – 23 August 2006 as a single carriageway with the Północ and Południe junctions. The second (west) carriageway with the Międzyrzecz Zachód junction was contracted on 17 November 2014 (Budimex 95% with Ferrovial Agroman; 83.65 million PLN net per plwiki, 107.72 million PLN works per MSBD) and opened on 21 December 2016 (plwiki: both carriageways available 19 October 2016). It is not a separate lot, so the old road stays opened. The drawn centreline between the two junctions is 4.7 km, 25% shorter than the sourced 6.37 km.

New-alignment dual carriageway of about 43 km in four contracted parts, all contracts signed 23 July 2010: Międzyrzecz Południe – Jordanowo and Jordanowo – Świebodzin Północ (Mota-Engil), Świebodzin Północ – Południe (Hermann Kirchner) and Świebodzin Południe – Sulechów (Budimex). The parts opened between 27 May and 21 August 2013, so the lot is shown as opened on the date the last part opened.

Single-carriageway road built 1985–1998 (Sulechów – Nowa Sól Zachód) with the 1995–1998 Nowa Sól bypass, refurbished in 2005–2008 (plwiki). A second carriageway was added in three works contracts of 311.03, 212.12 and 212.29 million PLN (MSBD, VAT basis not stated) in 2015–2018, on 13.39, 13.31 and 17.29 km. These are not separate lots, so the old road stays opened. Both Odra bridges were open from 20 December 2019. The drawn centreline is 44.5 km.

Design-build 2x2 expressway in two tasks: Nowa Sól Południe – Gaworzyce (16.4 km, 357.90 million PLN) and Gaworzyce – Kaźmierzów, now Polkowice Północ (16.9 km, 478.36 million PLN), with the Nowa Sól Południe, Nowe Miasteczko, Gaworzyce, Głogów Zachód and Głogów Południe junctions. Both opened on 15 September 2018. Contractors are not named on the pages read.

Design-build with the Polkowice Północ, Polkowice Południe and Lubin Północ junctions. The first contractor stopped work in mid-2017 and the contract was terminated on 29 April 2019; the continuation was signed on 20 November 2019. Builders of the original contract: Salini Polska (leader), Salini Impregilo, Todini Construzioni Generali and Pribex; of the continuation: Mota-Engil Central Europe (leader), Masfalt and Drogomex. Both contract values are listed; the lot's opened date is that of the last part. The drawn centreline is 13.0 km, 10% shorter than the sourced length.

Two design-build contracts: Lubin Północ – Lubin Południe (11.3 km) and Lubin Południe – Legnica II on the A4 (22.62 km), with the Lubin Zachód, Lubin Południe, Legnica Północ, Legnica Zachód and Legnica Południe junctions. Most of the lot opened on 25 June 2018 and the rest on 27 August 2018. plwiki gives slightly different contract values (261 and 786 million PLN).

Two design-build contracts: Legnica II – Jawor II (19.73 km, Eurovia and Warbud) and Jawor II – Bolków (16.11 km, Mota-Engil), with the Jawor Północ, Jawor Wschód, Jawor Południe and Bolków junctions. Both opened on 15 October 2018. plwiki gives slightly different contract values (about 316 and 345 million PLN).

Design-build with two tunnels under the Wałbrzych Mountains: TS-26 under Trójgarb (2,290 m) and a 320 m tunnel (plwiki), counted here as 2.61 km of tunnel. The contract runs 47 months from signing, excluding winters (15 December – 15 March). Opened 31 July 2024. The tunnels are not separate lots.

Part of the 15.31 km Kamienna Góra Północ – border contract (Mosty Łódź, leader, with PBDI) that is open to traffic: the Kamienna Góra Północ, Kamienna Góra Południe and Lubawka junctions. The contract value and 31-month term (excluding winters) cover the whole contract, including the Lubawka – border lot. Length is the MSBD length of 15.31 km less the 3 km Lubawka – border stretch named by plwiki. Opened 29 September 2023 with permanent traffic arrangement.

The last 3 km of the Kamienna Góra Północ – border contract, not opened with the rest on 29 September 2023; the status is the contract status, as no source states the state of the works. plwiki says it will open once the D11 motorway in Czechia is finished, which the Czech road administration expected for spring 2028. The contract value is carried by the Kamienna Góra Północ – Lubawka lot. Length is the 3 km stated by plwiki; the drawn centreline is 2.6 km.