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Environment - Energy

Gouvães Quarry


Gouvães Quarry, with all its equipment for exploring the existent granite rock mass in the region, was built to provide all the necessary aggregate material for the concrete batching plants responsible for the construction of Tâmega’s Electricity Production System.

The system consists of three dams and Iberdrola is the Owner of this development.

The quarry covers an area of about 278 thousand square meters, with an extraction area of 133 thousand square meters whereas the processing equipment and facilities take about 142 thousand square meters.

GEG was responsible for providing the Detailed Design of several design disciplines, namely:

  • Roads and Earthworks Design, which included the disciplines of Alignment, Accesses and Work Platforms Earthworks, Drainage, Signaling and Paving. It also included the improvement of the existing local road, which connects the national road network to the entrance of the quarry, with special emphasis on the two main culvert bridges built to allow the road access over the Torno River and one of its tributary water course;
  • Structural Design of supporting facilities (offices, social facilities, workshops, retaining walls in the hopper area, etc.) and industrial equipment, with special emphasis on Foundation Design of the aggregate silos and conveyor belts;
  • Hydraulic Infrastructure Design, which included the entire water supply network for support facilities and equipment, stormwater and wastewater network, pumping station, water treatment plant and oil separators network, ensuring that the water collected in all the working areas is treated and discharged in the river.

Provided with the definition and needs of this industrial facility and all the production equipment, GEG was responsible for coordinating all the design disciplines, in cooperation with the Client (DST), the Owner (Iberdrola) and some specific suppliers for the Design, such as the precasters of the box-culverts and the designer/supplier of the silos.

It should be noted that the proposed solutions considered the fact that, after the production period, it will be necessary to dismantle the quarry and provide a landscape recovery of the site.

Key Facts
Created with Sketch. Year: 
Created with Sketch. Client: 
DST – Domingos da Silva Teixeira
Created with Sketch. Services: 
Detailed design, Consulting and on-site technical support, Roadway design, Excavations and earthworks design, Foundations design, Ground support and earth retaining structures, Slope stabilisation, Hydraulic engineering, Hydraulic infrastructure management, Water treatment and transportation, Pumping stations
Vila Real, Portugal
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