01
Gare de Lausanne
Project Manager / Senior Tunnel Engineer
Geotechnical inspection, structural analysis and risk management for the operational station transformation within the Leman 2030 programme.
Live rail operations
from concept to construction
Onur Koç / Senior Tunnel Engineer & Project Manager
Engineering clarity
below the surface.
Onur Koc leads the design of complex underground structures across rail, road, energy and utility infrastructure - from early studies to construction delivery.
- 17+
- Years in underground design
- 4
- Continents of project delivery
- C2
- German and English
Zurich, Switzerland
Available for complex underground challenges
Core expertise
Design leadership for the places the world cannot see.
Project managementGeotechnical designStructural analysisTBM & SCL tunnelsRisk managementConstruction support
Selected work
Projects shaped by rigorous thinking.
Rail, logistics and energy infrastructure delivered across demanding operational, geological and programme conditions.
02
Cargo Sous Terrain
Project Manager / Senior Tunnel Engineer
Design services for a 75 km autonomous cargo network, including a single-tube TBM and SCL tunnel, shafts and portals.
75 km network
03
Manara Pumped Storage
Senior Tunnel Engineer
Design of access tunnels, powerhouse cavern and low- and high-pressure waterways for a complex underground energy facility.
156 MW capacity
Project archive
Seventeen reference projects.
One continuous discipline.
Open any project for a concise view of Onur's role and engineering scope.
01Gare de LausanneSwitzerland2025 - Present
Project Manager / Senior Tunnel Engineer
Geotechnical inspection, structural analysis and risk management for a major operational station transformation.
02Cargo Sous TerrainSwitzerland2023 - 2025
Project Manager / Senior Tunnel Engineer
Design services for a 75 km TBM and SCL cargo tunnel network, including shafts and portals.
03Manara Pumped Storage Power PlantIsrael2021 - 2023
Senior Tunnel Engineer
Design of access tunnels, powerhouse cavern, waterways and pressure tunnel linings.
04Effluent Outfall TunnelUSA2021 - 2022
Senior Tunnel Engineer
Starter and tail tunnel design, plus squeezing-ground risk assessment and mitigation for the TBM drive.
05French Hill TunnelsIsrael2019 - 2022
Senior Tunnel Engineer
Detailed geotechnical and structural design for excavation and support under low cover and complex urban interfaces.
06Eglinton Crosstown LRTCanada2020 - 2021
Senior Tunnel Engineer
False-ceiling connection design and reinforced-concrete engineering for a major transit programme.
07Purple (D) Line, Section IIIUSA2018 - 2021
Senior Tunnel Engineer
Analysis and design of cross passages, including dewatering and ground-improvement requirements.
08Vienna U5-U2 StationsAustria2017 - 2018
Structural & Geotechnical Engineer
Design of two city-centre stations and settlement analysis for overlying buildings.
09Granitztal Tunnel ChainAustria2015 - 2017
Structural & Geotechnical Engineer
Structural analysis and design of a 600 m cut-and-cover section linking two mined tunnels.
10Geisswand Road TunnelAustria2015 - 2017
Structural Engineer
Tunnel refurbishment and pavement design for swelling-ground conditions.
11Arlberg Road TunnelAustria2015 - 2016
Structural Engineer
Structural analysis of multiple tunnel components for the refurbishment of Austria's longest road tunnel.
12Gleinalm Road TunnelAustria2014 - 2015
Structural Engineer
Final-lining analysis for the new tube and structural design for refurbishment of the existing tube.
13Semmering Base TunnelAustria2012 - 2016
Tunnel Engineer
Three-dimensional analysis of TBM advance through a fault zone.
14Eurasia Tunnel, NATM SectionTurkey2011 - 2013
Structural & Tunnel Engineer
Primary and final lining design at intersections, plus cut-and-cover section design.
15Himmelreich TunnelAustria2011
Structural Engineer
Reinforced-concrete section design and analysis of false-ceiling formwork stripping.
16RN43 Road Tunnels T2 & T3Algeria2008 - 2011
Tunnel Engineer
Analysis of typical cross-sections in heavily karstified limestone and block-breccia conditions.
17Tauern Road TunnelAustria2008 - 2011
Structural & Geotechnical Engineer
Final lining, false ceiling, ventilation cavern and retention-dam analysis and design.
Career
Built on both analysis and accountability.
More than 17 years spanning structural calculations, geotechnical design, multidisciplinary coordination, technical oversight and project leadership.
2023 - Present
Pini Group SA
Zurich, Switzerland
Senior Tunnel Engineer / Project Manager
2018 - 2023
Dr. Sauer & Partners GmbH
Salzburg, Austria
Senior Tunnel Engineer
2008 - 2018
IGT GmbH
Salzburg, Austria
Structural Engineer / Tunnel Engineer
Education & qualification
2008
MSc, Civil Engineering
Geotechnics and Engineering Management
TU Vienna
2001
BSc, Civil Engineering
TU Istanbul
MembershipOeGG - Austrian Society for Geomechanics
Languages
TurkishNative
GermanFluent - C2
EnglishFluent - C2
FrenchIntermediate - B1
Publications
Contributing to the discipline.
French Hill road tunnels: A pragmatic rock support approach
Proceedings of WTC 2023, Athens
Istanbul Strait Road Tube Crossing: Design of NATM Tunnels and Asian Transit Box Excavation
Geomechanics and Tunnelling, vol. 9, no. 4, pp. 338-344
Strategies for Design of the Support Measures in Tunneling on Basis of Eurocode
Third International Symposium on Underground Excavations for Transportation, Istanbul