Home > Our Civil Works > Transportation > Laviolette Bridge - Phases II and III

Laviolette Bridge - Phases II and III

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  • Pont Laviolette - Ph II et III_1g.jpg
  • Pont Laviolette - Ph II et III_2g.jpg
  • Pont Laviolette - Ph II et III_3g.jpg
  • Pont Laviolette - Ph II et III_4g.jpg

Phase II:

Phase 2 of the work on this bridge represented the major portion of the investment in this project.  This phase itself was executed in two steps.  From February to August 2006, the work was done on the two southbound lanes (towards Bécancour, QC) and the 625 m approach on the northbound side in Trois-Rivières was completed in December 2006.

This work involved:

  • demolishing the sidewalks
  • demolishing the passageways
  • replacing the 200 deck slabs weighing 45 tons each
  • replacing all the exterior glide rails
  • repairing the piles
  • installing a central curb
  • installing an antiglare screen
  • installing a new lighting system
  • replacing the expansion joints
  • laying membranes and pavement on sections of the bridge and
    part of Highway 55
  • painting the entire length of the bridge

The hydro-demolition technique was used to demolish the concrete. This clean and precise time-saving process prevented damage to the structural steel.

In addition to this complex civil work, Pomerleau was also responsible for managing the traffic.  The 2 lanes on the bridge were closed only at night, during the hours set by the Ministry of Transport.

Phase III:

After completing Phase II of the rehabilitation work on this bridge, Pomerleau was awarded the Phase III contract for the southern approach (in Bécancour, QC), a total length of 675 m. The work involved replacing over 325 m of slabs and 22 slabs of 30 m of prestressed concrete girders and slabs on the rest of the bridge section with steel girders and new slabs.

The new deck sections and slabs were constructed on lift platforms on the ground. To replace a span, from pile to pile, the existing deck was cut in three longitudinal sections and removed by two 400TM cranes.  Next, the new slab was lifted into place.  The entire removal and replacement process had to take place within a 10-hour time frame.  The 22 slabs were replaced over 11 weekends, while keeping 2 lanes open to traffic at all times.

This work involved:

  • demolishing the sidewalks and passageways
  • replacing 100 deck slabs (45 tons each)
  • replacing 22 slabs weighing 176 tons each and measuring 30 m long
    by 7 m wide, including a new steel structure
  • replacing the exterior glide rails
  • repairing the piles
  • installing a central curb, an anti-glare screen and new lighting system
  • replacing the expansion joints
  • laying membranes and pavement on sections of the bridge and part
    of Highway 55.
  • maintaining all the painted surfaces on the bridge.

As in Phase II, the hydro-demolition technique was used to demolish the concrete.  It saved time and was also cleaner and more precise, therefore avoiding damage to the structural steel. In addition to this complex civil work, Pomerleau was also responsible for managing the traffic.  The 2 lanes on the bridge were closed only at night, during the hours set by the Ministry of Transport.

Type of project :
Transportation
Type of contract mode :
Stipulated price
Tags :
bridge, traffic
Location :
Trois-Rivières View map
Type of service :
Self-performed work, Health and safety, Insurance
Year of construction :
2007
Similar projects :
  • Le Gardeur Bridge
  • Taschereau Interchange
  • Rivière-aux-Mulets Bridge (reconstruction)
  • Promenade Samuel-De Champlain
  • Galipeault Bridge
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Pomerleau
521, 6th Avenue
Saint-Georges, QC
Canada G5Y 0H1

Phone: (418) 228-6688
Fax: (418) 228-3524
E-mail: eric.lessard @ pomerleau.ca

Website: www.pomerleau.ca
Printed on: September 22, 2014