Open invitation to tender, deadline 26/05/2025, for the modernization of the 16.6 km Nemanice I - Sevetin section, the last southern section of the 4th transit railway corridor, connecting the state border with Germany near Decin with Prague and Ceske Budejovice and continues onwards to Linz. The aim of the project is to double-track the Nemanice I - Sevetin section, increase its capacity and also line speed, up to 200 km/h. 

The section will include two new tunnels: Hosinsky/Hosin (3,120 m) and Chotycansky/ Chotycany (4,810 m) that will become the longest tunnel on the Czech railway network. Click here for bid documents and where tenders must be sent. Maximum contract value EUR854.81 million (CZK21.34 bn), excluding VAT. Contact Sprava Zeleznic, attn Kateřina Jungová, Prague, tel +420 720071563, email jungovak@spravazeleznic.cz. Visit https://ted.europa.eu/en/notice/-/detail/202076-2025. Ref.n. 5520/2025-SŽ-SSZ-OVZ. 14/25. 

Open invitation to tender, deadline 26/05/205, for the management and maintenance of tunnels, with functional responsibility for some of them, on national roads and national highways. Click here for bid documents and where tenders must be sent. Duration of contract from 01/09/2025 to 31/08/2030.A tender conference will be held 06.05.2025, 12:00, meet at Innspurten 11C, Oslo. Contact Norwegian Public Roads Administration, attn Marianne Rogne, Moss, tel +47 41564215, email marianne.rogne@vegvesen.no. Visit https://ted.europa.eu/en/notice/-/detail/227862-2025. Ref. n. 24/227947. 17/25. 

Competitive procedure with negotiation, deadline 28/04/2025, for the design and construction of system works and the supply of rolling stock for the Rebaudengo–Politecnico section of Line 2 of the Turin metro. Click here for bid documents and where tenders must be sent. Value of the contract is EUR 500 million, excluding VAT.  Contact Extraordinary Commissioner for construction of Turin metro Line 2, attn Arch. Fabio Bolognesi, Turin, tel +39 11 5592711, email infrato@infrato.it.

Open invitation to tender, deadline 02/06/2025, for comprehensive management services for protection and safety facilities in tunnels belonging to the conventional and metric gauge network (6 lots). Click here for bid documents and here where tenders must be sent. Value of the contract is  EUR 9.64 million, excluding VAT. Contact Adif, Madrid, tel +34 917744804, email comprascontratacion@adif.es. Visit https://ted.europa.eu/en/notice/-/detail/283470-2025, https://ted.europa.eu/en/notice/-/detail/117752-2025 and https://ted.europa.eu/en/notice/-/detail/43621-2025. Ref.n. 4.24/43110.0272. 18/25. 

Competitive procedure with negotiation, deadline 04/06/2025, for  the construction of the following a 2,470 m tunnel, approx. 1,200 m new road, a new bridge and other minor measures on the county road Fv 609 between Heilevang in Sunnfjord municipality and Hestvika in Askvoll municipality. Click here for tender documents and here where tenders must be sent. Duration of the contract is from 01/01/2026 to 18/10/2029. Value of contract EUR51,36 million (NOK600 million), excluding VAT. Contact Vestland fylkeskommune, attn Kai Jonny Bugjerde, Bergen, tel +47 05557,  email Kai.Jonny.Bugjerde@vlfk.no. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=287095-2025. Ref.n. VLFK/25/116. 19/25 

Open invitation to tender, deadline 04/06/2025, for the planning of the B 179 operational, safety and ventilation equipment for the 1.4km Fernpass tunnel, including the B 179 traffic infrastructure and its access routes. Click here for bid documents and where tenders must be sent. Duration of contract is from 23/06/2025 to 31/12/2031. Contact Land Tirol, Innsbruck, tel +43 512 508 4042, email strassenerhaltung@tirol.gv.at. Visit https://ted.europa.eu/en/notice/-/detail/286729-2025. Ref.n. LuR B 179-57/1/1-2025. 19/25. 

Open invitation to tender, deadline 06/05/2025, for backup power supplies (UPS) / road tunnel – for The Icelandic Road and Coastal Administration (IRCA) 2025. Click here for bid documents and here where tenders must be sent. Contact Vegagerdin, attn Gisli Gislason, Gardabaer, tel +354 5221072, email gigi@vegagerdin.is. Visit https://ted.europa.eu/en/notice/-/detail/203742-2025.Ref.n. 25-035. 15/25 

Open invitation to tender, deadline 09/06/2025, for exploratory boreholes, geological/hydrogeological investigations for the Lucerne Junction Project, consisting of the subprojects Lucerne Underground Station (TP1) with the 3.5km twin track Dreilinden Tunnel (TP2). Click here for bid documents. Contact SBB, Olten, tel+41000000000, email zeno.vanuden@sbb.ch. Visit https://ted.europa.eu/en/notice/-/detail/281724-2025. 18/25. 

Open invitation to tender, deadline 16/06/2025, for the construction of the 7.9km Valle del Genil section, part of the 19 km Loja Bypass on the Antequera–Granada high-speed line. The Valle del Genil section includes the Cerro de los Limones tunnel (1,295 m), the longest in the Loja Bypass, and two viaducts measuring 794 m and 693 m. The Loja Bypass will reduce travel times on rail connections to Granada, thanks to a new double-track and high-speed alignment. Click here for bid documents and here where tenders must be sent. Value of contract EUR 281.91 million, excluding VAT. Duration of contract 36 months. Contact Adif AltaVelocidad, Madrid, tel +34 917744804, emailcomprascontratacion@adif.es. Visit https://ted.europa.eu/en/notice/-/detail/239218-2025 and https://www.adifaltavelocidad.es. Ref.n. 3.25/20830.0030. 16/25. 

Competitive procedure with negotiation, deadline 17/06/2025, for project management assistance on economic, socio-economic, and financial matters related to the cross-border section of the new Lyon–Turin railway link. Click here for bid documents and where tenders must be sent. Value of contract EUR 1.81 million, excluding VAT. Duration of contract 84 months. Contact Contattare Tunnel Euralpin Lyon Turin Sas, Chambery, tel +33 479685650, email fonction.contrats@telt-sas.com. Visit https://ted.europa.eu/en/notice/-/detail/246340-2025. Ref. n. S73. 16/25. 

Competitive procedure with negotiation, deadline 17/06/2025, for project management assistance on economic, socio-economic, and financial matters related to the cross-border section of the new Lyon–Turin railway link. Click here for bid documents and where tenders must be sent. Value of contract EUR 1.81 million, excluding VAT. Duration of contract 84 months. Contact Contattare Tunnel Euralpin Lyon Turin Sas, Chambery, tel +33 479685650, email fonction.contrats@telt-sas.com. Visit https://ted.europa.eu/en/notice/-/detail/246340-2025. Ref. n. S73. 16/25. 

Competitive procedure with negotiation, deadline 19/06/2025, for operational management assistance (ACO), for technical assistance (AMOT) for the design and construction phases of the equipment and for support during the commissioning of the cross-border section of the new Turin–Lyon railway line(virtual infrastructure management service - GIV). The tender is composed of 3 lots. Click here for bid documents and where tenders must be sent. Value of contractEUR62 million, excluding VAT. Duration of contract 96 months. Contact Contattare Tunnel Euralpin Lyon Turin Sas, Chambery, tel +33 479685650, email fonction.contrats@telt-sas.com. Visit https://ted.europa.eu/en/notice/-/detail/244682-2025. Ref. n. S65. 16/25. 

Competitive procedure with negotiation, deadline 19/06/2025, for operational management assistance (ACO), for technical assistance (AMOT) for the design and construction phases of the equipment and for support during the commissioning of the cross-border section of the new Turin–Lyon railway line(virtual infrastructure management service - GIV). The tender is composed of 3 lots. Click here for bid documents and where tenders must be sent. Value of contractEUR62 million, excluding VAT. Duration of contract 96 months. Contact Contattare Tunnel Euralpin Lyon Turin Sas, Chambery, tel +33 479685650, email fonction.contrats@telt-sas.com. Visit https://ted.europa.eu/en/notice/-/detail/244682-2025. Ref. n. S65. 16/25. 

Open invitation to tender, deadline 24/06/2025, for the partial rehabilitation of the 4043 m Engelberg railway tunnel on the historic Lucerne-Stans-Engelberg line. The tunnel was damaged by water infiltration. Click here for bid/tender documents and where tenders must be sent. Duration of the contract is from 01/01/2026 to 30/11/2026. Contact zB Zentralbahn AG, Stansstad, tel +41586688888, email einkauf@zentralbahn.ch. Visit https://ted.europa.eu/it/notice/-/detail/287305-2025. 19/25. 

Open invitation to tender, deadline 27/06/2025, for the construction of the Aretes road tunnel (1154 m) on the H18, the East  La Chaux-de-Fonds bypass (Lot 300.1). For the bid documents, please click here. Duration of contract from 02/02/2026 to 31/12/2031. Contact Service des ponts et chaussees, Neuchatel 2, tel +41328896710, email Service.PontsChaussees@ne.ch. Visit https://ted.europa.eu/en/notice/-/detail/188607-2025. 13/25. 

International tender, deadline 28/07/2025, for the construction, operation, conservation, maintenance, and execution of the necessary investments for the operation of the Santos-Guaruja submerged tunnel interconnection System. The excavated tunnel between cities of Santos and Guaruja, on the coast of São Paulo, will be 2,900 m long with 1,700 m under the channel of the port of Santos. Interested parties may submit requests for clarification until 09/07/2025, email tunelimerso@sp.gov.br. Click here for bid documents. Value of contract EUR841.72 million (BRL5.78 bn). Contact  Secretariat of Investment Partnerships, State of São Paulo, email tunelimerso@sp.gov.br. Visit https://www.parceriaseminvestimentos.sp.gov.br/projeto-qualificado/tunel-submerso-santos-guaruja/. Ref.n. 01/2025.16/25. 

International tender, deadline 28/07/2025, for the construction, operation, conservation, maintenance, and execution of the necessary investments for the operation of the Santos-Guaruja submerged tunnel interconnection System. The excavated tunnel between cities of Santos and Guaruja, on the coast of São Paulo, will be 2,900 m long with 1,700 m under the channel of the port of Santos. Interested parties may submit requests for clarification until 09/07/2025, email tunelimerso@sp.gov.br. Click here for bid documents. Value of contract EUR841.72 million (BRL5.78 bn). Contact  Secretariat of Investment Partnerships, State of São Paulo, email tunelimerso@sp.gov.br. Visit https://www.parceriaseminvestimentos.sp.gov.br/projeto-qualificado/tunel-submerso-santos-guaruja/. Ref.n. 01/2025.16/25.