Rehabilitation of the CV-36 road in the Valencian Community after the DANA
SOCOTEC is leading the recovery of a vital infrastructure for the connection of the Levant.
- Client: Ministry of the Environment, Infrastructure and Territory
- Location: Alaquàs, Aldaia and Torrent (Valencia)
- Year: 2024-2025
- Execution time: 7 months
The catastrophic DANA of October 2024 left serious consequences on the infrastructures of the Valencian Community. Among them, the CV-36 motorway suffered severe damage that interrupted an essential connection for mobility in the metropolitan area of Valencia.
SOCOTEC, through its subsidiary Intercontrol Levante, has assumed the construction management, health and safety coordination, and quality control in this crucial project of rehabilitation of this infrastructure after the DANA.
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The devastating impact of the DANA on the CV-36
The CV-36, a fundamental artery in the metropolitan area of Valencia, suffered catastrophic damage after the overflow of the Poyo ravine during the DANA of October 29, 2024. This motorway, with an ADT of 35,000 vehicles per day, connects Valencia with Torrent (the second most populous municipality in the province) and with important roads such as the A-7 and V-30.
The most affected section, between KP 8+000 and 10+000, was completely inoperative after the floods. The damage included the total collapse of the bridge on the Torrent road (PK 8+640) and a partial ruin of the parallel bridge, as well as serious deterioration in pavements, slopes, drains and signage. This situation generated a mobility emergency for thousands of citizens who depended on this infrastructure for their daily commutes.
There have been two motivating aspects in this work. The first has been the professional challenge involved in the rehabilitation of a 3-span beam structure 75 m long that was damaged and displaced in plan and elevation. The second has been the great speed at which all the work has been done, a total of 7 months for a work that under normal conditions would have been executed in 15 months. All this has been possible thanks to an excellent team, from the first of the engineers to the last of the laborers, whom I want to thank for the honor of having led them as the Site Manager.
The rehabilitation and reconstruction project of the highway was carried out with the priority objective of restoring traffic as quickly as possible after the devastating effects of the DANA. The event caused serious damage to the road infrastructure, leaving one of the two lanes completely destroyed, while the other was left standing but seriously damaged.
To address this emergency, a three-phase strategy was designed that allowed a progressive recovery of connectivity while working on definitive solutions.
PHASE 1
Construction of a temporary bypass
The first phase consisted of the construction of a provisional diversion (floodable speed bump) to the north of the affected structures to restore traffic continuity urgently. This bypass, 510 metres long and 9 metres wide, allowed the crossing of the Barranco del Poyo ravine by means of 3 lines of 2.5×1.5 metre frames and 2 lines of parallel tubes.
A provisional roadway was enabled with two traffic lanes of 3.30 meters each, complemented by shoulders and symmetrical berms. The construction involved significant earthworks (28,300 m³ of excavation and 14,500 m³ of embankment), as well as the installation of 84 meters of frames and 56 meters of reinforced concrete pipes.
Work began on 2 November 2024 and the diversion entered service on 10 December 2025, providing a temporary solution while the more complex phases of the rehabilitation were undertaken.
The first phase consisted of the construction of a provisional diversion (floodable speed bump) to the north of the affected structures to restore traffic continuity urgently. This bypass, 510 metres long and 9 metres wide, allowed the crossing of the Barranco del Poyo ravine by means of 3 lines of 2.5×1.5 metre frames and 2 lines of parallel tubes.
A provisional roadway was enabled with two traffic lanes of 3.30 meters each, complemented by shoulders and symmetrical berms. The construction involved significant earthworks (28,300 m³ of excavation and 14,500 m³ of embankment), as well as the installation of 84 meters of frames and 56 meters of reinforced concrete pipes.
Work began on 2 November 2024 and the diversion entered service on 10 December 2025, providing a temporary solution while the more complex phases of the rehabilitation were undertaken.
PHASE 2
Rehabilitation of the damaged structure
Once traffic was restored through the provisional detour, the structure of the right platform, seriously affected by the DANA, was rehabilitated. The three spans of the structure had significant displacements: the span closest to Valencia had given way vertically 2.80 meters in its support and suffered horizontal displacements of up to 65 centimeters.
For this complex operation, specialized machinery was used with tower platforms equipped with powerful hydraulic jacks capable of lifting up to 800 tons. The process included delicate crawling (vertical movements) and ripping (horizontal movements) operations, constantly monitored by precision surveying.
The rehabilitation was completed with the repair of the compression slab, replacement of parapets, renovation of the pavement and creation of expansion joints. Thanks to the collaboration with the UPV, a continuous monitoring system was established to control any unprogrammed movement.
This phase culminated on 17 February 2025, when traffic could be reopened on the rehabilitated platform with two-way traffic, allowing the temporary diversion to be dispensed with.
Once traffic was restored through the provisional detour, the structure of the right platform, seriously affected by the DANA, was rehabilitated. The three spans of the structure had significant displacements: the span closest to Valencia had given way vertically 2.80 meters in its support and suffered horizontal displacements of up to 65 centimeters.
For this complex operation, specialized machinery was used with tower platforms equipped with powerful hydraulic jacks capable of lifting up to 800 tons. The process included delicate crawling (vertical movements) and ripping (horizontal movements) operations, constantly monitored by precision surveying.
The rehabilitation was completed with the repair of the compression slab, replacement of parapets, renovation of the pavement and creation of expansion joints. Thanks to the collaboration with the UPV, a continuous monitoring system was established to control any unprogrammed movement.
This phase culminated on 17 February 2025, when traffic could be reopened on the rehabilitated platform with two-way traffic, allowing the temporary diversion to be dispensed with.
PHASE 3
Construction of a new structure
The third and final phase consisted of the construction of a new structure for the left platform, which had been totally destroyed by the DANA. The new infrastructure replicated the typology of the rehabilitated structure: 75 meters in total length, 11.4 meters wide, distributed in 3 spans of 25 meters each, supported by two trough-type beams per span.
The works included the demolition of a damaged pier that did not offer structural guarantees, the use of the existing piles that were not affected because they were buried, the repair of the abutment on the bypass side and the complete construction of the abutment on the Valencia side.
Each span was built with two prefabricated trough-type beams of 120 cm in depth, on which lost formwork pre-slabs and the necessary rebar for the compression slab were arranged, reaching a total depth of 25 cm.
With the commissioning carried out on June 10, 2025, this final phase has made it possible to completely return traffic to the original situation prior to the DANA, thus completing the comprehensive recovery of this important road infrastructure.
The third and final phase consisted of the construction of a new structure for the left platform, which had been totally destroyed by the DANA. The new infrastructure replicated the typology of the rehabilitated structure: 75 meters in total length, 11.4 meters wide, distributed in 3 spans of 25 meters each, supported by two trough-type beams per span.
The works included the demolition of a damaged pier that did not offer structural guarantees, the use of the existing piles that were not affected because they were buried, the repair of the abutment on the bypass side and the complete construction of the abutment on the Valencia side.
Each span was built with two prefabricated trough-type beams of 120 cm in depth, on which lost formwork pre-slabs and the necessary rebar for the compression slab were arranged, reaching a total depth of 25 cm.
With the commissioning carried out on June 10, 2025, this final phase has made it possible to completely return traffic to the original situation prior to the DANA, thus completing the comprehensive recovery of this important road infrastructure.
SOCOTEC's comprehensive services for the rehabilitation and reconstruction of the CV-36 road after the DANA
Specialized services to ensure the correct execution of this emergency project:
- Complete construction management: Supervision of all technical and construction aspects during the execution of the works, ensuring compliance with deadlines and specifications.
- Health and Safety Coordination: Implementation of rigorous safety protocols in a highly complex and high-risk worksite.
- Quality control: Validation of materials and construction procedures to guarantee the durability and resistance of the rehabilitated infrastructure.
- Budget monitoring: Control of monthly certifications and optimization of resources in an emergency project with a limited budget.
Expertise in design, construction management and quality control for infrastructure rehabilitation
SOCOTEC has established itself as a benchmark in projects and construction management for the rehabilitation of critical infrastructures. Our technical capacity has been reinforced with the acquisition of Intercontrol Levante, the company responsible for numerous reconstruction works after the DANA disaster. This integration allows us to offer comprehensive solutions that combine the group's global knowledge with local experience in emergency management, guaranteeing optimal results in situations of maximum technical complexity and social urgency.