Founder’s previous experience

The projects in this list are works our founder Yusuf Nazlıoğlu was involved in during previous roles with other organisations. They were not carried out by Vertex Proje; the founder’s role is stated for each project.

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Sector All Railways Highways and interchanges Dams and hydraulic structures Buildings and facilities

Area of expertise All Site investigation and ground studies Foundation engineering and design Ground improvement Excavation support systems Retaining structures Slope stability and landslides Geotechnical monitoring Liquefaction assessment Site response analysis Seismic microzonation Dams and hydraulic structures Tunnels and underground structures

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28 projects · Page 1 / 3

• 2026

  İzmir — Detailed Design of Two Grade-Separated Interchanges (Karşıyaka and Karabağlar)

  Karşıyaka and Karabağlar, İzmir Highways and interchanges

  Geotechnical assessment; settlement and bearing capacity; shallow/deep foundation design; liquefaction analysis and technical coordination.

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  2025–2026

  Completion Works of the Şile–Ağva Road (Km 61+900–84+800) and Ağva–Kandıra Road (Km 84+800–109+000)

  İstanbul – Kocaeli Highways and interchanges

  Geotechnical assessment; settlement and bearing capacity; foundation design; liquefaction analysis and ground improvement design.

• 2025–2026

  Ankara–İzmir High-Speed Railway, Salihli–Manisa Section (Km 439+000–501+000)

  Manisa Railways

  Geotechnical and numerical analyses for viaducts and bridges; bearing capacity, slope stability, deep foundation and ground improvement design.

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  2026

  Ankara–İstanbul High-Speed Railway, Doğançay Realignment Phase I — Ali Fuat Paşa–Doğançay Section, Sakarya Bridge

  Sakarya Railways

  Settlement and bearing capacity for the Sakarya Bridge; deep foundation, liquefaction and cantilever pile shoring design.

• 2025–2026

  Çorum–Delice High-Speed Railway Line — K-19 Bridge

  Çorum – Kırıkkale Railways

  Geotechnical and numerical analyses for the K-19 Bridge; bearing capacity, slope stability, deep foundation and ground improvement design.

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  2025–2026

  Adana — Detailed Design of Four Grade-Separated Interchanges (Çukurova and Yüreğir)

  Çukurova and Yüreğir, Adana Highways and interchanges

  Geotechnical assessment; settlement and bearing capacity; foundation, liquefaction and cantilever pile shoring design.

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  2025–2026

  D130 Highway Başiskele Interchange Corridor Project, Phase I — Revision of Detailed Design

  Başiskele, Kocaeli Highways and interchanges

  Geotechnical design report; settlement and bearing capacity; foundation, liquefaction and anchored pile shoring design.

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  2025–2026

  Uşak (Eşme)–Salihli Railway Line Project

  Uşak – Manisa Railways

  Geotechnical assessment; settlement and bearing capacity; shallow/deep foundation design and liquefaction analysis.

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  2025

  Çeşmeli–Erdemli–Silifke–Taşucu Motorway — V1 and V4 Viaducts

  Mersin Highways and interchanges

  Geotechnical and numerical analyses for the V1 and V4 viaducts; bearing capacity, slope stability and deep foundation design.

• 2025

  Road and Highway Structures Projects in Kocaeli — Ro-Ro Junction–Seka Tunnel Section

  Kocaeli Highways and interchanges

  Bearing capacity, slope stability, deep foundation and ground improvement design for bridges and connecting roads.