The main objective of this project is the drafting of the technical design and the development of the study for the implementation of protection systems against avalanches on the AS-112 road. This study covers the sections between P.K.s 34+635 to 34+660, 36+800 to 37+120, 37+150, and 37+760 to 38+350. These sections traverse a mountainous region of the Principality of Asturias, an area highly susceptible to snow avalanches and rockfalls, posing a significant risk to the users of this road infrastructure.

The project has a significant impact on road safety for this highway, which constitutes a strategic axis connecting several key towns in the Principality of Asturias. Furthermore, this road serves as a primary access route to the ski resorts of San Isidro and Fuentes de Invierno, substantially increasing traffic, particularly during the winter months. The areas under study are characterized by steep slopes ranging from 30° to 50°, where snow accumulation and heavy precipitation during the winter months promote the formation of avalanches and rockfalls.

The development of this project will not only improve the road’s transit conditions but also reduce costs associated with temporary closures due to emergencies, frequent repairs, and potential accidents. Additionally, the planned technical solutions are designed to comply with the most rigorous safety and sustainability standards, thereby ensuring a more resilient infrastructure capable of facing the climatic and geological challenges of the region.

The contract encompasses comprehensive technical assistance for the drafting of an infrastructure project that includes the following activities:

Preliminary and Base Studies: Conducting geological and geotechnical analyses in the study areas to identify terrain conditions and associated risks. Executing high-precision topographic surveys through photogrammetric flights, generating 3D point clouds to ensure an accurate modeling of the area.

Dynamic Simulations: Using advanced software RAMMS (Rapid Mass Movement Simulation) to model and predict the behavior of avalanches by integrating factors such as terrain friction, slope, orientation, altitude, and climatic conditions. Calculating maximum snow thickness and transported mass volumes based on historical data and meteorological records to design solutions adapted to the specific characteristics of each section.

Structural Design: Dimensioning and designing protection systems such as dynamic barriers, avalanche shelters, and rigid structures, ensuring their functionality and efficiency against projected loads. Detailed evaluation of the environmental impact of interventions and proposing mitigation measures necessary to minimize adverse effects on the environment.

Budget, Specifications, and Construction Documents: Preparing specific technical specifications that define the requirements and details for the execution of the works. Developing detailed measurements, a base budget for bidding, and a cost breakdown for each of the planned interventions.

This comprehensive approach ensures that the project addresses all technical, environmental, and economic aspects necessary to guarantee the feasibility of the proposed solutions and their contribution to safer and more efficient road infrastructure.