The Design and Build Contract for Wakrah & Wukair Drainage Tunnel (WWDT) was awarded to the joint venture PHM.
Wakrah and Wukair districts are experiencing significant growth, and the need for an efficient, flexible and reliable waste water management system is vital. The current pace of growth is posing major challenges for the existing drainage infrastructure hence the commissioning of the 13km WWDT tunnel.
The project consists of a single tunnel with a 4.5m interior diameter which will be constructed by 2 tunnel boring machines working simultaneously.

Our Services:
Project Coordination & Interface
TBM Navigation Guidance
Survey Network Installation and Calculations
Wriggle Measurements and Calculation
Gyroscopic Measurements
3D Laser Scanning & Analysis
NATM Works
Metrology Measurements – Laser Tracker Measurements
Pre-Cast Segment Measurements