Dorval Very High Frequency Omni-Direction Range (VOR) Replacement

NAV CANADA proposes to replace the existing Standard Very High Frequency Omnidirectional Range (SVOR) navigation aid with a more modern Doppler Very High Frequency Omnidirectional Range (DVOR). The purpose of a VOR is to provide navigational aid to aircrafts operating in the area. This is part of NAV CANADA's Air Navigation Modernization Program which is designed to upgrade aging and obsolete technology with more modern versions.

The site is comprised of, the VHF Omnidirectional Range (VOR), the Distance Measuring Equipment (DME) and the Emergency/Interruptible Power Unit (EPU). The VOR and DME equipment are housed in the east trailer, along with a wall mounted air conditioning unit. The emergency diesel generator and 900 L above ground fuel tank are located in the west EPU trailer. These trailers are both located under the main VOR/DME antenna canopy. The trailers are one-storey buildings with aluminum exterior finishes and a foundation that consists of wood beams on a concrete slab. The interior finish of the VOR/DME trailer is vinyl floor tiles and the interior finish of the EPU trailer is vinyl sheet flooring and wood panelling on the walls.

The VOR site is located approximately 1 km south of St. Augustin and 890 m southwest of Chemin du Chicot S along an unnamed VOR access road and there is metal fencing surrounding the VOR structures/equipment. The ground surface occupied by the trailers is covered with gravel and the surrounding land outside the fenced area is comprised mostly of agricultural land. The fenced area of the VOR site is approximately 225 m2.

The new DVOR is going to be built in the same general location as the current SVOR. The current SVOR and associated shelters/structures will be demolished prior to the construction of the new DVOR, and shelters/structures being installed. The current fuel tank will be removed and disposed of, and a battery backup system will be used for the new DVOR. The fencing around the current SVOR will be removed and replaced with new fencing. The existing transformer is to be removed and replaced with a new outdoor transformer in a new location. A portion of existing unused underground power and telecommunication cabling is to be demolished, and new cabling is to be installed.

This project is expected to start May 1st, 2026.

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Latest update

April 14th, 2026 – Transport Canada has determined that Dorval Very High Frequency Omni-Direction Range (VOR) Replacementis not likely to cause significant adverse environmental effects.

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Key documents

Key documents
Document number Document title File Date
1 Notice of Determination - Dorval Very High Frequency Omni-Direction Range (VOR) Replacement DOCX (54 KB) February 16, 2026

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

    • Dorval (Quebec) (Quebec)

  • Nature of Activity

    • Airport and Airfields

  • Assessment Status

    Completed

  • Start Date

    2026-02-16

  • Proponent

    NAV CANADA

  • Authorities

    • Transport Canada

  • Assessment Type

    Project on federal lands

  • Reference Number

    90229

Nearby assessments

...within 200 kilometres
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