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Tunnels are a very important part of the transportation systems. They are unavoidable because of the consistency, efficiency and fluency of the networks. Although they remain out of sight, their uninterrupted service is vital for hydroelectric power generation, railway transportation, urban transit, mining, defense, cable crossings under roads, water distribution, sewerage systems, subway in urban areas and many other uses.

ECAP is a multidisciplinary firm providing its customers with the best solution in the engineering and management problems of any type of tunnels including cut and cover, bored, and mined tunnels in any type of soil condition. It is dedicated to provide cost effective and fully integrated engineering and management services from planning, investigation and design through supervising the construction to the timely delivery of the project.


Our services include;

Feasiblity studies and planning
Preliminary design for tender
Cost Estimates
Procurement contractors and suppliers
Final design for construction
Engineering consultancy services including Quality Assurance and Quality Control
Construction management
Supervising the construction


Geotechnical Engineering
Hydraulic Engineering
Project Management
BAT- Kabataş – Baltalimanı Tunnels, TURKEY
ISK- Fatih, Haliç & Eyüp Tunnels, TURKEY
KHK - North Golden Horn Collectors, TURKEY
CLT - Lakhdaria - Bouria Highway Tunnel, ALGERIA