Vancouver Island’s Esquimalt Harbour, west of downtown Victoria, B.C., is home to Canadian Forces Base Esquimalt and the Esquimalt Graving Dock, the largest dry dock and ship repair facility on Canada’s West Coast. The facility’s massive jetties provide essential staging and berthing space, with much of the fitting-out, maintenance and repair work performed alongside them when vessels do not require dry-dock access. FRPD, in joint venture with SPAL General Constructors Corporation, was selected to reconstruct the South Jetty while this busy marine facility remained fully operational.


Problem

Originally built in 1927 on relatively short timber piles, the South Jetty had deteriorated significantly and was assessed as vulnerable to collapse in the event of a major earthquake. Replacing the aging structure required construction within an active harbour and ship repair facility, without disrupting operations or compromising environmental remediation completed during previous projects.


Solution

The FRPD–SPAL joint venture implemented a detailed construction and logistics plan that ensured safety, environmental protection and continuous access for tenants. Work was sequenced to minimize operational impacts, marine equipment moves were carefully coordinated with harbour authorities and strict environmental controls were maintained throughout. The project was successfully completed on schedule, providing a modernized dock and berthing structure that supports ongoing ship repair and maintenance activities at the facility. Read more about this project.


Key Facts

Dredging

  • 1,000 m³ of contaminated material dredged and disposed of upland

Pile installation

  • 164 × 914 mm and 762 mm diameter driven steel pipe piles, installed using vibratory and impact hammers
  • 52 × 914 mm and 762 mm diameter drilled, rock-socketed steel pipe piles, installed using down-the-hole hammer drilling
  • Longest drilled pile: 55 m, including a 3.5 m open-hole rock socket

Precast and concrete construction

  • 600 precast concrete components, including underwater displacement tubs, pile caps, deck panels and 60-tonne fender drops
  • 6,100 m³ of cast-in-place concrete, including overwater engineered formwork tying together precast components
  • 800 m³ of lightweight concrete placed in precast duct-bank trenches
  • Foam-filled precast concrete tug float with gangway and access platform

Dock and berth improvements

  • 10,000 m² of usable dock area created
  • 300 m of ship berthing capacity
  • 320 lineal metres of heavy-duty stainless steel seismic joints and transfer plates installed between the existing and new dock structures

Corrosion and pile protection

  • New impressed-current corrosion protection system for both the new dock and existing piling
  • Tidal-wrap protection system installed on existing steel pipe piles

FRPD’s marine construction expertise, careful coordination and integrated management of multiple trades enabled the successful delivery of a complex seismic upgrade while the Esquimalt Graving Dock remained fully operational.