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  NEWS:
BURLINGTON LIFT BRIDGE
 

The State Group has been awarded a contract to replace the existing bridge control system (including the controls, drives and overhead cables) at the Burlington Lift Bridge which are used to operate the Bridge which is east of the QEW/Burlington skyway, and serves both commercial vessels and pleasure craft that wish to pass from Hamilton Harbour into Lake Ontario. The Burlington Lift Bridge structure is comprised of two towers with a moveable lift span in between that can be lifted and lowered. The lift span is 116 m long, weighs approximately 2000 tons and can be lifted to a height of 36 m to facilitate navigation of large vessels. The span has two-way vehicular traffic and a pedestrian walkway along the west side. The existing control system originating in the towers contains the lift mechanism consists of machinery, sheaves and cables. There is one 150 horsepower drive motor in each tower to supply power to the machinery and one 150 horsepower motor in each tower to synchronize the drive motors (4 motors in total). The project involves the replacement of controls, drives and overhead cable. The components of the existing system which are to be replaced include:  All four main drive motors; The main drive motor control cubicles in the control house electrical room; The feedback tachometers (pilot generators) and over speed switches located in the tower top machinery rooms; The resistor and reactor banks located in the control house electrical room; and all miscellaneous components associated with the existing main drive system. The existing motor control centres located in the tower top machinery rooms will be replaced with new motor control centres. Two new main drive motors will be installed in each tower top machinery room to take the place of the existing main drive motors. The four roadway traffic gates located closest to the lift span and currently referred to as “barrier gates” will be removed and replaced with true resistance barrier gates. The new barrier gates will be capable of stopping a 2000 kg vehicle impacting the gate at 70 km/h. The existing tower-to-tower aerial cables will be replaced.   Substantial Performance is scheduled for April 2016 and Final Completion in June 2016.

 
 
           
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