Our Projects - ThunderBay, Ont.

Harbour Dredging:

The Port of Thunder Bay is a busy commercial harbour with typically 6 million tonnes of grain shipments per year. Riggs Engineering was retained to address navigation concerns, exacerbated by low Lake Superior water levels.

Our scope of services included:

- Pre- and post-dredging surveys.

- Side scan surveys.

- Sediment sampling and analysis.

- Canadian Environmental Assessment Act Screening report.

- Determination of channel width based on navigation review.

- Plans and specifications for dredging contract.

- Contract administration.

- Field review services during the project.

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