Enbridge project manager Amber Pastoor talks to Detroit media on July 10, 2019, about how rock sampling work aboard the Highland Eagle will shape Enbridge's Line 5 tunnel project in the Straits of Mackinac.

Fugro project manager Steve Williams talks to media aboard the Highland Eagle at Detroit on July 10, 2019. Fugro will be performing geotechnical work for Enbridge on the Highland Eagle in 2019; analysis of drilled rock samples will help to determine the characteristics of the tunnel boring machine (TBM), which will be custom designed to suit the geology of the Straits.

Guy Jarvis, Enbridge’s Executive Vice President, Liquids Pipelines, speaks to Detroit media at the Port of Detroit on July 10, 2019. “The vessel we are about to tour is tangible evidence of our commitment to the $40-million 2019 engineering and geo-technical program, which is being funded by Enbridge in the face of the State’s attempts to invalidate prior agreements and shut down the pipeline," Mr. Jarvis told media.

The London-based marine vessel Highland Eagle typically works in an offshore environment, performing investigative work for structures like wind turbines, bridges and subsea tunnels.

Detroit media members on a guided tour of the Highland Eagle in the Port of Detroit on July 10, 2019. The rock sampling work to be carried out aboard the Highland Eagle, and other vessels, will help determine the ultimate design and construction of Enbridge's Line 5 Straits of Mackinac tunnel.