From The Windsor Star

The companies behind a $400-million proposal to build a second Detroit River rail tunnel have issued a pre-bid notice — a call for companies to prove qualifications — to conduct the environmental assessment for the project.

Borealis Infrastructure and CP Rail, co-owners of the 100-year-old Windsor-Detroit rail tunnel, plan to build an adjacent tunnel to accommodate larger double-stacked railway cars and possibly high-speed cross-border passenger service.

http://www.windsorstar.com/Rail+tunnel+proposal+moves+closer+reality/2483399/story.html