Rehabilitation of the retaining wall on the approach to the wharf in Harrington Harbour, Quebec

The Harrington Harbour Marine Terminal, located on Quebec's Lower North Shore, consists mainly of a fish warehouse and factory, a hangar owned by Transport Canada and a Société des traversiers du Québec (STQ) floating dock where the water taxi, shuttling between Harrington Harbour and Chevery, can dock.

The retaining wall on the south side of the Harrington Harbour wharf approach was constructed in 1974 as part of the wharf repair and improvement work. This retaining wall is composed of two types of structures. The first, located the westernmost, is composed of a reinforced concrete wall and the second, located the easternmost, is composed of a wall of Creosote wood backfilled with stones. To the east of the retaining wall is a boat launch. The condition of this retaining wall has reached the end of its useful life. TC is to rehabilitate the boat and demolish the condemned boat launch.

The area of the concrete wall, where significant erosion has been observed in its lower part, will be repaired in excess thickness with local formwork. This repair will be coordinated according to the tides in order to carry out the dry work. Note that if the contractor deems it necessary, a cofferdam could be installed. For damage located in the higher part of the wall, the concrete will be demolished locally until the reinforcement is cleared, which will be cleaned. Repairs without extra thickness will then be put in place. The repair work on the concrete wall could take about two weeks.

The area of the wood casing wall is heavily damaged. The first step consists of the demolition of the existing wooden casing and its ramp, followed by the placement of the Creosote wood in an authorized site. Rehabilitation consists of the installation of a precast concrete wall, with a footing, firmly anchored to the rock to ensure its stability. This repair work could be spread over a period of about four weeks and will be coordinated according to the tides in order to carry out the dry work. It should be noted that if the contractor deems it necessary, a cofferdam could be installed for certain portions of the work.

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Latest update

May 1, 2025 – The authority issued its Notice of Determination and determined that the project is not likely to cause significant adverse environmental effects.

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Contacts

Environmental and Aboriginal affairs - Québec region
Email: aea-eaa@tc.gc.ca


Disclaimer

This map is for illustrative purposes. The markers represent the approximate locations based on available data. More than one marker may be identified for a given assessment.

  • Location

    • Harrington Harbour (Quebec)

  • Nature of Activity

    • Ports and Harbours

  • Assessment Status

    Completed

  • Start Date

    2025-03-05

  • Proponent

    Transport Canada

  • Authorities

    • Transport Canada

  • Assessment Type

    Project on federal lands

  • Reference Number

    89343

Nearby assessments

...within 200 kilometres
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