ADIF tenders once again the adapted project for the Gijón railway tunnel

ADIF has tendered the drafting of the adapted construction project for the railway penetration tunnel in Gijón, including the Bibio and Viesques stations and the associated civil works. The announcement, processed under file 3.26/27507.0240, is published in the Official State Gazette (BOE) no. 280, dated November 10, 2026, with an estimated value of 1,729,830.00 euros. The deadline for submitting bids ends at 1:00 PM on December 14, 2026.

The tender is promoted by the Presidency of ADIF, a public business entity with NIF Q2801660H and address at calle Sor Ángela de la Cruz, 3, Madrid. The contract is awarded through an open procedure, without the admission of variants, and is identified with CPV code 71311230 (Railway engineering services). The main place of service provision is listed under NUTS code ES120, corresponding to Asturias, and the specifications are freely and openly accessible through the State’s contractor profile.

Thirty months of technical work

The contract has a planned duration of 30 months and does not allow for the submission of variants to the solution defined in the documentation. The objective is the drafting of the “adapted” construction project for the railway penetration tunnel and the two stations planned for the Gijón urban layout.

The announcement includes special execution conditions that require the future contractor to incorporate environmental considerations, eliminate inequalities between men and women, promote the employment of people with particular difficulties in labor market insertion, and comply with data protection regulations.

Award criteria and schedule

The evaluation of bids combines three criteria:

• Criterion evaluable by value judgment: 49% of the weighting.
• Cost-related criterion: 43%.
• Criterion evaluable through formulas for additional experience: 8%.

Proposals are submitted electronically at https://elicitadores.adif.es and the bidder is obliged to maintain their offer for 2 months. The opening of the economic offer envelope has been set for February 11, 2027, at 10:00 AM, in a private act in Madrid.

A project returning to the table seven years later

This is not the first tender for this project. The Official State Gazette of November 3, 2018, published the prior announcement under file 3.18/27507.0191, with an estimated value of 1,149,469.43 euros, a duration of 15 months, and a bidding deadline that closed on November 22, 2018.

That procedure was resolved with the award on May 17, 2019, after receiving 8 bids, to UTE VIESQUES (NIF U88397914) for 734,510.99 euros; the formalization was published in the BOE on July 16, 2019.

The new announcement incorporates the adjective “adapted” in the object and a different file, with an estimated value approximately 50% higher than that of 2018 and double the execution period.

Processing and appeal process

The announcement was sent to the Official Journal of the European Union on November 4, 2026, and was published in the OJEU under reference 2026/S 206-00766777, also on November 4. The signature corresponds to the president of ADIF, Luis Pedro Marco de la Peña, and the contract is covered by the Agreement on Government Procurement.

An appeal against the tender may be filed before the Central Administrative Tribunal for Contractual Appeals, with a submission period of no less than 15 business days.

The reactivation of this tender directly affects the railway engineering sector: a contract of nearly 1.73 million euros, 30 months of work, and two new stations in the urban environment of Gijón. For Asturias, the penetration tunnel is the piece that must organize the arrival of the railway to the city center and define the role of Bibio and Viesques in the new railway network. Interested companies have until December 14 to make their move.

Source: Official State Gazette, no. 280, November 10, 2026, Sec. V-A (Announcements. Public Sector Procurement), page 59366 (official reference: BOE-B-2026-36702).