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REPLACEMENT OF THE PERLEY BRIDGE ABOVE THE OTTAWA RIVER
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CLIENT
Public Works Canada
LOCATION
between Grenville (Québec) and Hawkesbury ( Ontario )
DURATION
1995-2000
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SERVICES RENDERED
Teknika HBA, in partnership with PSA (Montréal) and DS-LEA (Toronto), participated in all engineering and work supervision activities, including, among others, the following:
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Preliminary studies to determine the optimal layout of spans and piers for two types of superstructures: steel and concrete; |
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Elaboration of two alternatives to the superstructures:
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concrete deck with steel box beams; |
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concrete deck with prefabricated, variable-length, pre-stressed concrete beams. |
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Hydraulic and hydrological studies including bathymetric measures and mathematical model of the river on a distance of 100 km between Ottawa and the Carillon hydroelectric power plant. This study aims at checking the flow conditions with the existing bridge, during the construction and operation of the new bridge; |
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Detailed engineering for the abutments, piers in up to 8-meter deep water and both types of superstructures: steel and concrete; |
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Detailed engineering for road infrastructures linking this new bridge to the existing road network: route 344 in Grenville and John Street in Hawkesbury; |
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Road lighting integrated to the structure and traffic lights. |
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PROJECT DESCRIPTION
Public Works Canada wanted to replace the existing two-lane bridge by a new 650-meter long, four-lane bridge. The existing bridge consisted of 34 variable-length spans while the new structure is made of ten spans (eight 69.5-meter long spans et two 51-meter long spans at the extremities).
The project also included modifications to road infrastructures on both shores, lighting and road signs as well as the demolition of the existing bridge. |
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