Completion of the general interceptor sewer of the Nalón River.

Main collector of the Nalón River

The Nalon River Main Collector is a key project in the improvement of the region's sanitation infrastructure. Designed to optimize wastewater management, the collector not only reduces the risk of flooding and overflows, but also contributes to a cleaner and healthier environment for the inhabitants of the area.

Thanks to the use of advanced technologies and sustainable methods, this project sets a benchmark in the modernization of sewerage systems in high mountain environments.

General project details

Location: Río Nalón, Spain.
Main objectiveConstruction of the main sewer to improve the sanitation system.
Geological conditionsSand, clay, rock and pebbles.
Technology usedRoadheader DN2000 open shield.

This project responds to the growing need for modern infrastructure in the Rio Nalon region, ensuring efficient wastewater management.

Technical specifications

Nominal diameter: 2,000 mm.
Method usedRoadheader open shield excavation.
Excavated landSand, clay, rock and pebbles.

Roadheader open shield technology was instrumental in addressing the diverse geological conditions, ensuring tunnel stability and safety throughout the construction process.

Logistics and technical challenges

The project presented significant challenges due to the site conditions and the need to preserve the natural environment. However, thanks to rigorous planning and the use of advanced technology, the teams were able to meet the objectives efficiently.

Project highlights

Soil stabilityThe open shield made it possible to excavate without affecting the surface structures.
Minimization of environmental impactSustainable methods were used to reduce disturbance to the environment.
Flow optimizationThe collector increases the capacity of the sewer system, preventing flooding.

Environmental and social impact

The Nalón River Main Collector is a project that transcends technical improvement, having a direct positive impact on the quality of life of the inhabitants.

Environmental protection: Efficient wastewater management contributes to the conservation of local water resources.
Sustainable infrastructureThe modern design of the collector guarantees its durability and capacity to meet future needs.
Public healthImproved sanitation system reduces the risks associated with water contamination.

References of executed works

In Eurohinca we are specialists in the execution of tunnels for pipelines with tunnel boring machines. Since its foundation in 1996 Eurohinca has executed different types of works:

International Experience