On the A10 motorway between Sebeș and Turda, an important link between the A1 near Sebeș and the region around Cluj-Napoca, two of the three lanes have been closed for months. The cause is persistent ground instability beneath the carriageway at kilometre 66, which has repeatedly led to cracks and subsidence since 2023/2024, according to Europamaut.com.
Initial restrictions were already in place from 28 May 2026, and after another, larger landslide, the roughly 500-metre section between kilometre 65+900 and 66+400 in the direction of Turda had to be completely closed at times from 7 July 2026. New photos from 5 September 2026 show that the section remains severely damaged – there is still no concrete end date for the restrictions.
Third closure at the same spot since 2023
The A10 was only built a few years ago at a cost of around €90 million, yet the ground at this spot is already subsiding for the third time. Earlier stabilisation attempts in 2023 and 2024 failed to permanently solve the problem. The case has since been handed over to the responsible county crisis committee (Comitetul Județean pentru Situații de Urgență), which is working on a final technical solution.
Spanning approximately 70 kilometers through the heart of Transylvania, the A10 Highway (Sebeș–Turda) serves as a vital arterial link in Romania’s evolving transportation grid. Designed to connect the A1 Highway at Sebeș with the A3 Motorway (Autostrada Transilvania) near Turda, the corridor has drastically reshaped regional mobility, routing heavy transit traffic away from congested national roads and seamlessly uniting central Transylvania with Western European transport corridors.
Although the project faced years of bureaucratic delays, challenging terrain, and complex engineering obstacles before its full completion, the highway now stands as a cornerstone of industrial and commercial logistics in Alba and Cluj counties.
Technical Profile & Key Highway Data
| Parameter / Dimension | Metric & Infrastructure Details |
| Total Length | ~70 km |
| Connecting Motorways | A1 (at Sebeș) and A3 (at Turda) |
| Design Speed | 120 km/h |
| Major Interchanges | 7 junctions (Sebeș, Alba Iulia Nord, Alba Iulia Sud, Teiuș, Aiud, Decea, Turda) |
| Counties Crossed | Alba and Cluj |
| Key Geography | Parallel to the Mureș and Arieș river valleys |
Strategic Importance for the Transylvanian Economy
The opening of the A10 Motorway brought three major structural advantages to the region:
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Bypassing Urban Bottlenecks: Prior to the highway’s completion, transit traffic was forced onto the overcrowded DN1 (E81) national road, causing severe bottlenecks through Alba Iulia, Teiuș, and Aiud. The A10 eliminated these urban bottlenecks, cutting travel times between Cluj-Napoca and Sibiu nearly in half.
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Logistical Spine for Industry: The highway directly connects major industrial and automotive hubs across Sebeș, Alba Iulia, Aiud, and Cluj-Napoca. This continuous high-speed connectivity has attracted significant foreign direct investment (FDI) into logistics parks and manufacturing centers along the Mureș corridor.
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Seamless Transatlantic & European Transport: By linking the A1 (heading toward the Hungarian border at Nădlac) with the A3 Motorway, the A10 serves as a crucial link within Transverse Trans-European Transport Network (TEN-T) routes.
Engineering Challenges and Landslide Mitigation
The construction of the A10 Highway was divided into four distinct lots, constructed by various international consortia. The terrain along the Mureș valley presented significant geotechnical difficulties:
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Geotechnical Instability: Sections near Oiejdea and Alba Iulia encountered unstable hillside slopes, requiring extensive piling, retaining walls, and continuous monitoring to prevent landslides.
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Complex Interchanges: The highway required massive multi-level interchanges at its terminal points—specifically the complex junctions at Sebeș (A1) and Turda (A3)—to ensure safe, high-speed merging between major motorways.
A Gateway to Sustainable Mobility
By reducing constant stop-and-go heavy vehicle traffic through urban centers along the national road, the A10 has significantly lowered carbon emissions and noise pollution in local towns. Today, the Sebeș–Turda corridor stands as an indispensable infrastructure asset, strengthening regional economic integration and serving as a model for Romania’s ongoing motorway expansion projects.
