{"id":4407688,"date":"2026-06-25T09:59:48","date_gmt":"2026-06-25T07:59:48","guid":{"rendered":"https:\/\/www.ersigroup.com\/project\/viaducto-concha-artedo\/"},"modified":"2026-06-25T11:17:42","modified_gmt":"2026-06-25T09:17:42","slug":"viaduct-concha-artedo","status":"publish","type":"project","link":"https:\/\/www.ersigroup.com\/en\/project\/viaduct-concha-artedo\/","title":{"rendered":"Concha Artedo Viaduct"},"content":{"rendered":"

[et_pb_section fb_built=”1″ fullwidth=”on” _builder_version=”4.27.4″ _module_preset=”default” da_disable_devices=”off|off|off” global_colors_info=”{}” da_is_popup=”off” da_exit_intent=”off” da_has_close=”on” da_alt_close=”off” da_dark_close=”off” da_not_modal=”on” da_is_singular=”off” da_with_loader=”off” da_has_shadow=”on”][et_pb_fullwidth_image src=”@ET-DC@eyJkeW5hbWljIjp0cnVlLCJjb250ZW50IjoicG9zdF9mZWF0dXJlZF9pbWFnZSIsInNldHRpbmdzIjp7fX0=@” title_text=”blida_0″ _builder_version=”4.27.4″ _dynamic_attributes=”src” _module_preset=”default” max_height=”500px” global_colors_info=”{}”][\/et_pb_fullwidth_image][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.27.4″ _module_preset=”default” da_disable_devices=”off|off|off” global_colors_info=”{}” da_is_popup=”off” da_exit_intent=”off” da_has_close=”on” da_alt_close=”off” da_dark_close=”off” da_not_modal=”on” da_is_singular=”off” da_with_loader=”off” da_has_shadow=”on”][et_pb_row column_structure=”3_5,2_5″ _builder_version=”4.27.4″ _module_preset=”default” custom_margin=”-300px||||false|false” global_colors_info=”{}”][et_pb_column type=”3_5″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.5″ _module_preset=”default” text_font=”Montserrat|700||on|||||” text_text_color=”#111111″ text_font_size=”24px” text_line_height=”1.4em” width=”200px” module_alignment=”left” custom_margin=”300px||||false|false” custom_padding=”||10px||false|false” border_color_bottom=”#0a626c” global_colors_info=”{}”][\/et_pb_text][et_pb_text _builder_version=”4.27.6″ _module_preset=”default” custom_margin=”||||false|false” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″]Concha de Artedo Viaduct (A-8 motorway)<\/span><\/b><\/span><\/p>\n

<\/span><\/b><\/span><\/p>\n

 <\/p>\n

 <\/p>\n

The Concha de Artedo Viaduct<\/strong> forms part of the Muros de Nal\u00f3n \u2013 Las Due\u00f1as<\/strong> section of the A-8 Cantabrian Motorway, a strategic infrastructure developed to complete the high-capacity transport corridor along Spain\u2019s northern coast. Located in the municipality of Cudillero (Asturias)<\/strong>, the viaduct was designed to span the Concha de Artedo valley through a long-span structure adapted to particularly challenging mountainous terrain. With an overall length of approximately 1,200 metres<\/strong> and a maximum height of 110 metres<\/strong>, it became the longest and tallest viaduct constructed in Asturias at the time of its completion<\/p>\n

The structure consists of sixteen piers and seventeen spans<\/strong>, with span lengths of up to 75 metres<\/strong> and pier heights ranging from 20 to 104 metres<\/strong>. The bridge deck was constructed using a precast segmental reinforced concrete system<\/strong>, comprising a total of 574 precast segments<\/strong> weighing between 57 and 75 tonnes<\/strong> each. Segment erection was carried out using a self-launching gantry<\/strong>, capable of placing segments weighing up to 65 tonnes<\/strong> by the balanced cantilever method, ensuring high geometric accuracy and efficient construction of long spans<\/p>\n

ERSIGROUP<\/span><\/b><\/span> participated in the supply, fabrication and installation of reinforcement for piles, pile caps, bridge piers, precast deck segments and cantilever slabs. The repetitive nature of the structural elements enabled the implementation of advanced reinforcement industrialization and optimization processes. Each precast segment required detailed reinforcement redesign and bar scheduling to accommodate the high reinforcement densities while maintaining the prestressing duct layout required for segment assembly. Complementary reinforcement components were industrially fabricated and delivered together with detailed assembly drawings, optimizing both manufacturing efficiency and on-site installation<\/p>\n

The foundations of the central piers were constructed using groups of 16 bored piles<\/strong> reaching lengths of up to 40 metres<\/strong>, reinforced with cages measuring 1.85 metres in diameter<\/strong>. Some pile caps incorporated up to 240 tonnes of reinforcing steel<\/strong> and required the placement of approximately 1,000 m\u00b3 of concrete<\/strong> in a single concreting operation. To accelerate pier construction, prefabricated reinforcement screen panels<\/strong> were developed, with four reinforcement panels preassembled for each 5-metre climbing lift<\/strong> before being lifted into position and connected using specially fabricated corner reinforcement elements. This methodology significantly improved installation productivity, construction safety and reinforcement quality in high-rise bridge piers<\/p>\n

The combination of detailed engineering, reinforcement prefabrication, specialized logistics and industrialized construction methods enabled the successful execution of one of the most technically demanding bridge structures on the Cantabrian Motorway, further strengthening ERSIGROUP<\/span><\/b><\/span>‘s<\/strong> expertise in large-scale bridge construction through advanced fabricated reinforcing steel solutions<\/p>\n

 <\/p>\n

 <\/p>\n

 <\/p>\n

 <\/p>\n

<\/span><\/b><\/span><\/p>\n

KEY MILESTONES<\/span><\/b><\/span><\/p>\n

<\/span><\/b><\/span><\/p>\n

<\/span><\/b><\/span><\/p>\n