Half the Work Is Done: The Clear-Cut Case for a Subway in the I-94 Trench: https://streets.mn/2026/04/28/half-the-work-is-done-the-clear-cut-case-for-a-subway-in-the-i-94-trench/ The I-94 trench is an open cut waiting to be covered. Before we fill it, build a subway that merges Minneapolis and St. Paul into one downtown.