El Caminito del Rey: A Living Landmark of Spanish Civil Engineering
TSI has recently participated in the structural testing campaign of the new suspended footbridge at the Caminito del Rey, spanning more than 100 metres across the Desfiladero de los Gaitanes gorge in Málaga, Spain. The company contributed specialised instrumentation, data acquisition systems, and advanced dynamic monitoring services for the project.
Located within the Desfiladero de los Gaitanes, a dramatic natural canyon carved by the Guadalhorce River and extending over 3 kilometres in length, the Caminito del Rey is considered one of Spain’s most iconic pedestrian engineering infrastructures. Its origins date back to the early 20th century, when the walkway was built as an auxiliary access route for the operation and maintenance of the region’s hydroelectric power plants. In 1921, the route was officially inaugurated by King Alfonso XIII, giving rise to the internationally recognised name “Caminito del Rey” (“The King’s Pathway”).

Following its comprehensive rehabilitation in 2015, the Caminito del Rey became one of Europe’s leading examples of nature tourism combined with civil engineering heritage. Today, the site continues to evolve through new structural developments, including the installation of a new suspended pedestrian bridge exceeding 100 metres in length.
Historical insight. In 1921, King Alfonso XIII officially inaugurated the route, which is why it became known as the “Caminito del Rey”. Today, the site welcomes hundreds of thousands of visitors every year and is recognised worldwide as a benchmark in active tourism and civil engineering.
TSI’s Role: Instrumentation and Dynamic Structural Monitoring
TSI recently participated in the dynamic load testing campaign carried out on the new suspended footbridge at Caminito del Rey (Málaga), providing specialised technical support for the assessment of the structure’s dynamic behaviour.
Instrumentation and Data Acquisition Works
As part of the project, TSI carried out the instrumentation, data acquisition, and dynamic monitoring activities required to analyse the structural response of the bridge during dynamic load tests, verifying compliance with the applicable technical requirements.
The work involved the deployment of specialised sensors and measurement systems to ensure the reliability, accuracy, and consistency of the data recorded throughout the testing campaign.
Structural Testing Protocols and Operational Conditions
The testing campaign was conducted under rigorous structural testing protocols, allowing engineers to characterise the dynamic response of the infrastructure under different operational conditions and validate its behaviour according to the established engineering criteria and technical standards.

Verification of Safety and Comfort Parameters
The results obtained during the tests confirmed that the structure behaved as expected and in accordance with the design forecasts, validating compliance with the safety and comfort parameters applicable to this type of singular pedestrian infrastructure.
Key result. The tests confirmed the correct dynamic behaviour of the suspended footbridge, validating compliance with the established safety and comfort requirements for pedestrian infrastructures of this nature.
Technical Team and Collaborating Companies
The project involved the participation of several specialised engineering compañia:
- Solutioma: Structural engineering consultancy specialised in civil engineering, advanced technical solutions, and singular infrastructures.
- Agranaltura: Company specialised in rope access, difficult-access operations, and technical works at height.
Image Gallery
Part of the work carried out during the campaign can be seen in the accompanying image gallery.
At TSI, we would like to thank all the teams involved for their collaboration and support throughout the development of the testing campaign. Participating in projects of this nature allows us to continue contributing, through measurement engineering, dynamic analysis, and structural monitoring, to the development and validation of infrastructures of significant technical and heritage value.
For further information, please contact us:
📧 infotsi@tsisl.es
📞 +34 913 459 730