JEC Project:
Boom, Mast, and Hydraulic Doors for Stonecutters Bridge, Hong Kong

DeveloperHighways Department, HKSAR Government
JEC ScopeDesign, Supply and Installation of Boom, Mast & Hydraulic Doors at Stonecutters Bridge
LocationHong Kong
Project Completion Date2009

Jardine Engineering Corporation (JEC) designed, supplied and installed booms, masts and hydraulic doors for the Stonecutters Bridge, the second longest cable-stayed bridge in the world with a height of 298m. JEC was responsible for two main parts of this project:

a. Ten booms and ten masts on the bridge deck
b. One pair of booms, one pair of masts and one pair of hydraulic doors at two tower tops


Project Scope
Both booms and masts were erected for the installation of electrical and mechanical equipment, such as CCTV, leading lights for vessels and planes, lightning conductors and wind speed detectors. The hydraulic door, at the topmost part of the bridge (which is the first outdoor hydraulic door installed on such a high level) houses the Building Maintenance Unit (BMU) for the Stonecutters Bridge.

Installation Challenges
The project presented a number of challenges to the project team. The 10 booms on the bridge deck were located at the edge of the bridge and were extremely close to the bridge cables. The space for installation was therefore very limited. The project team made precise calculations and retuned the installation progress to satisfactorily complete the installation and eliminate risk to nearby utilities.

Unique Services
Many structural parts were specially manufactured according to the project requirements and designs. Testing was carried out with the client before the assembly left the factory. The JEC team also provided extra services requested by client, such as making a temporary structural support for opening the hydraulic door to ease the installation of other equipment from other contractors.

Image A member of the Jardine Matheson Group