| Activities by year |
A selection of the projects under execution of COSFESA is included below.
Infrastructure and track maintenance for ADIF conventional and metric gauge lines. 6 Lots. Lot 1: Northwest.
The area where this service is provided is the Conventional Railway Network belonging to the regional headquarters of León, Ourense, and Salamanca, with 2,908.26 km of track and the 896.31 km of the Northwest Metric Gauge lines.
Cyclic maintenance activities are carried out (infrastructure and track inspections and adjustments, checks, track cleaning), maintenance activities according to the condition, derived from periodical infrastructure and track inspections or incidents and infrastructure improvement actions.
Infrastructure, track and turnouts maintenance in High-Speed Lines in Galicia and the High-Speed Atlantic Axis. (Scope of the Irixo and A Mezquita operational bases).
The service is provided on the Pedralba de la Pradería-Ourense, Ourense-Santiago, and Vigo Urzaiz-A Coruña High Speed lines, with special infrastructures such as the Maceiras, Bolaños and Espiño tunnels, Teixeiras and Río Ulla (HSL and CL) viaducts and all kinds of structures, along 665 km of the general track line, managed from the Irixo and A Mezquita headquarters.
Preventive maintenance activities are carried out on infrastructure, track, switches and headquarters, corrective maintenance responding to incidents by providing relief to affected trains and small maintenance activities leading to an improvement in the value of assets, safety, reliability, and comfort from the service.
Infrastructure, track, and turnouts maintenance of the North and Central High-Speed Network. (Scope of the Olmedo and Villada operational bases).
The area which this service is provided is the High-Speed railway access to the North and North-West railway corridor of Spain, linking the cities of Madrid, Segovia, Valladolid, Palencia, León, and Burgos, with special infrastructures such as the Guadarrama and San Pedro tunnels, viaducts, and all kinds of structures, along 441.31 km of the general track line, managed from the Olmedo (182.771 km) and Villada (258.541 km) headquarters. Preventive maintenance is carried out for surveillance, data evaluation, diagnosis and programming of short, medium, and long-term interventions, corrective maintenance acting immediately in incidents and improvement actions increasing the value of assets, and upgrading the safety, reliability, and comfort from the service in the long term.
Track assembly works for the North-Northwest High-Speed Corridor. Madrid-Galicia High Speed Line and Maintenance. Lot 1: Track assembly. Line section: Olmedo-Pedralba de la Pradería.
The remaining works consists of doubling the track (64 km) on the existing railway platform between Medina del Campo and Coreses, completing the assembly of 1,435 mm wide double track between Olmedo and Pedralba de la Pradería, in a 197.495 km long, in addition to the rail links in Olmedo, Valladolid and Medina del Campo in a 24.60 km long.
The service involves maintenance of the infrastructure (platform), track (and switches), as well as the maintenance of buildings (offices, warehouses, workshops) and other facilities of the La Hiniesta headquarter and other locations.
Construction works for the comprehensive renewal of infrastructure and track on the Monforte de Lemos - Chapela junction line. Section: Guillarei station - Redondela station.
The works are being carried out on the section of line 810 between k.p. 141+800, close proximity to Guillarei station and k.p. 165+300, in the vicinity of Redondela station, including Louredo-Valos station.
The scope of the contract involves the renewal of the track superstructure and the necessary interventions on the infrastructure (structures and earthworks) to enable the future implementation of 25 kV AC electrification.
Works include the replacement of sleepers, rails, ballast (in excavation zones), and turnouts at Valos Station. Slab track is installed within tunnels and on the new viaduct over the N-550 road. The project also includes excavation and repair works in the four existing tunnels, as well as an enlargement of the cross section in the Valos tunnel to increase the gauge. Stabilization works are carried out on cuttings and embankments, along with the repair and improvement of underpasses and the replacement of an existing steel viaduct with a new concrete structure.
Track renewal works on the section Ourense-Monforte de Lemos. Line 810.
The works are being carried out on the section of line 810 between k.p. 0+400 of Monforte station and k.p. 45+563 before reaching Ourense station, including Canabal, San Estevo do Sil, Os Peares and Barra de Miño stations.
The project consists of actions on the track superstructure with the purpose of modernizing the facilities and changing the electrification from 3kVDC to 25kV AC, which will allow the connection of Monforte de Lemos with the High-Speed Network in Ourense. It will also be carried out the rehabilitation and updating of the rest of the elements of the route to adapt it to the new operating conditions. To this end, ballast renewal, replacement of sleepers, rails, turnouts in stations and 43 level crossings will be carried out.
Complete renewal of track in the Gijón-Laviana line of the Metric Gauge Network in Asturias.
Included in the Asturias Metric Gauge Network, the section to be worked on, runs between Gijón-Sanz Crespo Station and Laviana along 49 km, where the track will be completely renewed (ballast, sleepers, rails, switches) and the infrastructure will be improved with actions on the platform, tunnels, slopes, and level crossings.
Track rehabilitation: Mataporquera - Torrelavega section. Phase II.
The scope of works consists of the renewal of several track sections on RFIG Line 160 (Palencia-Santander), between Mataporquera station (k.p. 407+108) and Torrelavega station (k.p. 485+072). This is an electrified single-track line serving the Santander C-1 regional rail network.
The works include the replacement of sleepers and rails, as well as the upgrade of 8 type "A" S&C units to type "C" at Lantueno, Pesquera, Cobejo, Bárcena, and Las Fraguas stations. It also involves the superstructure rehabilitation of the steel bridge on the approach to Los Corrales de Buelna, ballast cleaning over a 160 m section, track slewing in two sections (400 m and 720 m long), the renewal of 9 level crossings and 59 rail lubricators along the alignment, and the implementation of minor drainage features.
Construction works for the replacement of type "A" S&C units and track material renewal at Pizarra and Aljaima stations. Córdoba – El Higuerón to Los Prados Junction Line.
The works consist of replacing S&C units and renewing several tracks at Aljaima and Pizarra stations, at k.p. 169.50 and 162.70 respectively, on RFIG Line 430 (Bif. Córdoba Mercancías-Los Prados, Córdoba-Málaga line).
At Aljaima station, tracks 3 and 4 are being renewed by replacing ballast, sleepers, and rails, where new formation layers are also being installed. Additionally, 4 expansion joints and 6 type "A" turnouts are being removed and replaced with type "P" and "C".
At Pizarra station, tracks 2 and 4 are undergoing ballast and sleeper renewal, while track 3 and the electric shed track are undergoing full superstructure renewal, including new formation layers in specific sections. Nine expansion joints are being removed, and 6 type "A" turnouts are being replaced with types "P" and "C".
Works also include the adaptation of the existing overhead line equipment (OLE) in affected areas, alongside necessary adjustments to signalling and safety installations.
Renewal works of auxiliary tracks at Las Fraguas station.
The works under this contract involve the renewal of tracks 1, 3 and 4 (1,826 m) at Las Fraguas station and the replacement of turnouts 5 and 6 by type C ones, in addition to the asphalt level crossing by Strail system.
The works involve the dismantling of the existing track components, ballast excavation, subgrade rehabilitation, installation of geotextile, and reassembly of the track over new ballast, including turnouts and the level crossing. Additionally, the bridge deck over the Llares River is waterproofed, and an anti-vibration mat is installed prior to the placement of the track superstructure. All these interventions will require adjustments to the overhead catenary system and railway signaling and safety installations.
Rail and sleeper replacement works between K.P. 1/260 and 81/600, of the section Castejón de Ebro - Irun Division Limit. Line 700, Casetas - Bilbao.
The works span an 80.34 km section between Castejón de Ebro and Fuenmayor stations, on ADIF's intermodal Abando Indalecio Prieto - Casetas line 700 (RFIG line 700, Bilbao - Casetas). It runs through the municipalities of Castejón de Ebro and Lodosa, in Navarra, and Alfaro, Rincón de Soto, Calahorra, Alcanadre, Arrúbal, Agoncillo, Logroño and Fuenmayor, in La Rioja.
The existing RS sleepers and pre-1973 UIC 54 rail, are replaced by mono-block sleepers and new UIC 54 rails at various kilometer points along the section and 8 level crossings will be renovated.
Additional works include cleaning of ditches and trackside areas, and the construction of a ballast-retaining wall over over a driven rails system.
Associated works include the adjustment of signalling and communication systems.
Parla Norte New Railway Station (Madrid).
This project involves the construction of Parla Norte station on the existing C-4 suburban network. Designed for future scalability, the new station will function as an interchange, providing direct connectivity with the upcoming urban tram extension.
The passenger terminal comprises three interconnected single-story modules (885.84 m2), visually unified by a canopy made with structural metal ribs and tubular Y-shaped pillars is included. Two platforms will be built, one on each side of the 210 m long railway platform, 110 m covered by a metal canopy and an underpass for communication between platforms through under-track jacking, service connections and urbanization. Adapting the current track alignment to the new station, given its curved geometry, requires adjustments along a 938 m section, alongside modifications to the electrification and Control, Command and Signalling (CCS) systems to suit the new operational configuration.
Track renovation works at the La Negrilla Logistics Center.
The scope of works is to enhance the terminal’s operational efficiency through the renewal of track components on the main lines (1 and 2), the arrival and departure tracks (tracks 4, 6 and 8), the M2 and the loading and storage sidings (28, 30, 32, 34 and 36).
Tracks will undergo full renewal, including the placement of a sub-ballast layer, the replacement of existing ballast with a new type 1 ballast and the installation of new PR-VE monobloc sleepers and 54 E1 rail. Maintenance is being performed on existing type A S&C units and the replacement with new types C1/C models on in the main tracks racks 34 and 36 will be realigned to comply with the standard gauge, while station drainage will be enhanced through new ditches and culverts. Additionally, any affected utility services will be adapted to the new configuration.
Cutting repair works from kp 61+200 to 100+700 and from 111+700 to 112+000 on the Ortigueira - Ribadeo section of Line 740 Ferrol – Pravia.
The scope of the works entails the execution of 11 interventions on cuttings identified within ADIF's Metric-Gauge Network Cutting Plan and the Risk Points Registry of the ADIF Contingency Plan. These interventions span a 55 km section of the Ferrol-Pravia line, between Ortigueira and Burela stations, aiming to mitigate the current risk of landslides and slope instability in these locations.
To this end, the project includes clearing and grubbing, slope reprofiling, the installation of high-tensile (TT) galvanized mesh with rock bolts, and the upgrading of longitudinal track drainage and crest drains, alongside the improvement of service roads and the surrounding environment.
Railway permeability improvement works on the Palencia – A Coruña line in O Barco de Valdeorras (Ourense)
A new underpass is being constructed beneath the access turnout to O Barco de Valdeorras Station on the Palencia – A Coruña line at KP 297+950, connecting Rúa da Rampa and Rúa Ramón y Cajal at the junction with Rúa Xirimil. This underpass is designed for vehicular traffic, while the existing structure will be repurposed for pedestrian.
The structure consists of a cast-in-situ reinforced concrete box, measuring 10 m (length) x 8 m (width) x 3.074 m (height). The roadway comprises a two-lane carriageway with 3 m-wide lanes and 1 m shoulders.
The scope of works entails the installation of two micropile walls, reinforced concrete retaining walls, and provisional shoring of cabling and track to maintain uninterrupted rail service throughout the project. Additionally, the works include ballast replacement under the turnout, restoration of railway signaling and telecommunications, track tamping and leveling, and the final development of the new roadway and adjacent urban areas.
Construction works for the level crossing removal project at KP 389+262, 389+948, 390+344, and 392+136 on the León - A Coruña line (Line 800) in Sarria (Lugo)
The project entails the removal of four level crossings on Line 800 within the municipality of Sarria, implementing specific engineering solutions for each site.
To remove the level crossing at KP 390+344, a new underpass will be constructed nearby. This structure consists of a cast-in-situ reinforced concrete box, measuring 12.60 m (length) x 3.30 m (width) x 3 m (height), which will be jacked into place using a thrust wall.
The level crossing at KP 389+262 will be replaced by a 395-meter access road crossing over the Arroxeiros tunnel. Likewise, the crossing at KP 389+948 will be substituted by a 110-meter road connecting to the LU-P-5713 road, which intersects the track an existing underpass.
Once the alternative crossings are completed, the original level crossings will be decommissioned and closed by installing metallic safety barriers (W-beam guardrails). The crossing at KP 392+136 will be removed and closed directly.
Emergency works and services arising from the August and September 2025 wildfires on the Covas – Monforte de Lemos – Ourense section: Infrastructure and track interventions
This emergency contract, awarded to COSFESA, encompasses the recovery works for damages caused by wildfires in August 2025, which affected the O Barco de Valdeorras – A Rúa de Petín and San Clodio – Pobra do Brollón sections of Line 800 (A Coruña – León). It also covers the wildfire declared on September 18, 2025, which remained active throughout the month, impacting the Canaval – Os Peares section of Line 810 (Monforte de Lemos – Bifurcación Chapela) and leading to a weeks-long traffic suspension.
To restore rail services, work began with the removal of burnt trees—both fallen and leaning—and debris from the track. Following an assessment of the affected areas, the project involves the replacement of sleepers and track sections where wooden sleepers were burnt, specifically at Freixeiro station and on the Cabe River metallic bridge in Sober. Additional works include felling, bucking, limbing, and tree removal, as well as clearing the formation level and slope stabilization, involving the replacement of retaining elements where required.
International
Rehabilitation, Operation, and Maintenance of the La Dorada – Chiriguaná Railway Corridor (Colombia)
The scope of this contract encompasses the rehabilitation and upgrading of the existing 526 km-long and 914 mm narrow-gauge railway section between La Dorada (Caldas) and Chiriguaná (Cesar). The project includes the expansion and construction of logistics infrastructure, maintenance depots, and control centers, as well as the overhaul of rolling stock (comprising both State-owned units and new acquisitions). It further involves track administration, operation, and maintenance of the permanent way and rolling stock, including three branch lines from Gamarra to the former IDEMA site, Puerto Capulco, and Cabañas.
Main interventions consist of the renewal and upgrading of rails, sleepers, ballast, and sub-ballast across 28 stations (Heritage-listed sites), 10 passing loops, and signaling systems at 145 level crossings. Works also include the structural reinforcement of 26 bridges and the maintenance of another 76, alongside 346 civil works (drainage, service roads, level crossings, and retaining structures). Additionally, the project entails the construction of two maintenance depots in Barrancabermeja and Chiriguaná, a logistics hub and an Operations Control Center (OCC) in La Dorada, alongside the design, construction, and equipping of two schools in Santo Domingo and San José Primavera.
Under the operation and maintenance framework, services provided include the collection of track access charges and logistics fees, freight rail services, traffic control and surveillance, socio-environmental management, and the administration and maintenance of rolling stock, track, workshops, logistics centers, and emergency response works.
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