High Speed Line, Stretch: Trinidad-Montcada junction, Barcelona
Budget : €127.63 millons Adjudication date : February 26, 2007
Client : Ministry of Public Works. ADIF

Most representative characteristics
- Total lenght: 4.750 m
- Tunnel lenght: 3,017 m
- Tunnel seccion: 100.28 m²
- Tunnel Works method: TBM of 11.66 m in diameter

High Speed Line. Stretch: Colmenar Viejo-Soto del Real, Madrid
Budget : €125.42 millons Adjudication date : July 27, 2003
Client : Ministry of Public Works. ADIF

Most representative characteristics
- Tunnel lenght: 9,325 m
- Tunnel seccion: 70.14 m²
- Tunnel Works method: TBM of 9.45 m in diameter

New Subway Cars at Vallecas, Madrid
Budget : €52.18 millons Adjudication date : April 18, 2005
Client : Community of Madrid. Department of Transport and Infrastructures (MINTRA)

Most representative characteristics
- Levelling volume: 950,000 m³
- Car park building: 15,400 m²
- Maintenance workshops: 4,800 m²
- Office building: 2,800 m²
- 32 tracks grouped together into 3 elements
- Track on ballast, Interlaced track on ballast, on supports and in trenches. Total length: 15,480 ml

Assembly of the High Speed Line track, Stretch: Siete Aguas-Valencia, Valencia
Budget : €39.19 millons Adjudication date : April 25, 2008
Client : Ministry of Public Works. ADIF

Most representative characteristics
- Assembly of double track on ballast: 44,300 m
- Assembly of concrete-mounted track: 31,500 m
- 4 storage areas
- Assembly base: 7,600 m²

Maintenance of infrastructure, track and diversions of the High Speed Line, Stretch: Valencia-Gabaldón-Albacete
Budget : €17.40 millons Adjudication date : June 9, 2010
Client : Ministry of Public Works. ADIF

Most representative characteristics
- Length: 222 km of double track
- Maintenance duration: 2 years

Maintenance conventional railway line in Galicia
Budget : €18.29 millons
Client : Ministry of Public Works. ADIF

Most representative characteristics
- Lenght: 1,000 km
- Maintenance duration: 3 years
- Preventative and maintenance treatment of the conventional railway network

Vigo-Guixar Station, Pontevedra
Budget : €10.14 millons Adjudication date : September 28, 2009
Client : Ministry of Public Works. General Railway Infrastructures Agency

Most representative characteristics
- Station Building: 900 m²
- Platforms hall: 300 m²
- Maintenance building: 660 m²
- 3 platforms
- Length platforms: from 156 m to 282 m
- 2 cross-connections
- 11 diversion routes
- 1 escape route
- Guide tunnel Length: 1,120 m

Mounting Plate of Olmedo, Valladolid
Budget : €12.12 millons Adjudication date : January 31, 2003
Client : Ministry of Public Works. ADIF

Most representative characteristics
- Surface area: 200,000 m²
- Gauge changing facilities
- Locomotives maintenance warehouse
- Rails gantry
- Stockpiling slabs
- Ballast loading rampart

Work to improve the Calaf-Manresa stretch, Barcelona
Budget : €27.22 millons Adjudication date : December 10, 2007
Client : Ministry of Public Works. General Railway Infrastructures Agency

Most representative characteristics
- Crossings: Multipurpose single-block
- Ballast: type A
- Rail: UIC 54 kg/m
- Drainage trenches

Atlantic High Speed branch line. Ordes-Queixas Stretch, La Coruña
Budget : €28.37 millons Adjudication date : April 11, 2005
Client : Ministry of Public Works. General Railway Infrastructures Agency

Most representative characteristics
- Total lenght: 4,298.7 m
- Tunnel lenght: 1,440 m
- Tunnel seccion: 131.10 m²
- 2 Rails gantry
- 1 Underpass