Two Canadian companies are looking at the possibility of a new dedicated truck and rail tunnel at the Ontario/Michigan border.

Canadian Pacific Railway and Borealis Transportation Infrastructure Trust, owned by the Ontario Municipal Employees Retirement System, announced that the Detroit River Tunnel Partnership is examining the potential for a new dedicated truck and rail corridor between Windsor and Detroit using the existing rail tunnel under the Detroit River.
DRTP, which owns the existing rail tunnel and rail corridor between Highway 401 in Ontario and I-75 in Michigan, will examine converting the existing tunnel's two rail tubes into a state-of-the-art truck route.
The work will also examine the development of a new rail tunnel in the same corridor.
"With the necessary approvals and support, and the use of existing infrastructure, a new, free-flowing Windsor-Detroit border crossing could be reality in five years," said DRTP General Manager Michael Sheahan. "With the experience and resources of our partnership, this project could move quickly from concept to completion. Our plan could improve commercial traffic movement at existing crossings, which is essential for continued economic growth in the Detroit/Windsor region."
Twenty-five percent of all Canada-U.S trade passes between Windsor and Detroit and the crossing is often congested. Making matters worse, projections indicate that trade between the two countries will triple over the next 20 years.