Tender Results of Administrador De Infraestructuras Ferroviarias Spainish Railway Infrastructure Administrator Adif

Technical assistance services for the control and surveillance of the construction project works for the implementation of the 4+4+2 scheme at the Atocha Cercanías station

Works of execution of the projects of replacement and execution of enclosures in the scope of Subdirección de Operaciones RC Noreste. L200 - PK 612+400 - 614+800 (Roda de Berà - Tarragona)

Supply and transportation of sleepers for the new railway complex in Valladolid. Phase II

Drafting of the construction project and execution of the works for the renovation of the automatic protection of the class A3 level crossings located in the PP.KK. 631/562 and 631/895 of Line 780 Santander - Bilbao La Concordia in the municipality of Ges (Bizkaia) and for the renovation and improvement of the automatic protection of the concatenated level crossings located at PP.KK 0/914 and 1/194 of line 790 La Asunción University - Aranguren in the municipality of Zalla (Bizkaia).

Maintenance services for signaling facilities, train protection systems, fixed telecommunications, and protection and security systems for the Madrid-Levante high-speed line. Section Madrid Chamartín – Torrejón de Velasco

Consulting and assistance contract for the control of the works of the construction project of the new Parla Norte station (Madrid).

Execution of the works of the "Slope stabilization construction project in the trench from PK 490+939 to PK 491+350 on line 770 Oviedo-Santander, of the metric gauge network, in Cantabria"

Execution of the construction project works for the complementary works of the Langreo tunnel. Line 08-752 Laviana-Gijón Sanz Crespo. Asturias metric gauge network

Execution of the works of the track renewal project and replacement of gantries at the Nueva Montaña station (Cantabria). Line 780: Santander to Bilbao-La Concordia, PK 534/347 to PK 535/115. Metric width network.

Execution works of the construction project, comprehensive replacement of bi-block sleepers with monoblock sleepers in different sections of the Seville – Huelva line. From kilometer point 65/680 to kilometer point 96/287.