Our Buildings and Projects
These two 4 span continuous, 2 lane, 157 m long prestressed concrete girder bridges were part of the Fredericton – Moncton Trans Canada Highway project constructed by MRDC in 2000. The superstructures consist of 4 span pre-cast, pre-stressed 1900 mm deep bulb tees. These bridges replaced a 1960s era two lane highway bridge. Technical challenges included designing the substructures for a very soft and deep over burden requiring monitored pre-loading, tied-back abutments and sleeved piles. In addition, the river piers had unique pipe piled elevated bath tub type pier footings which precluded the use of more expensive deep seated steel sheet piled cofferdams.