Union Depot's owner claims that escalators that were installed several years ago have been plagued with issues. Now the owner is suing construction manager M.A. Mortenson and a subcontractor.

They’ve shaved off marble finishes like artisans, analyzed paint layers like archaeologists, explored rotten bowels of 90-year-old infrastructure like spelunkers and even mapped out pigeon guano.

In St. Paul’s Lowertown neighborhood, readying the former Christos restaurant space for a new bar and grill in the Union Depot transit hub will cost Ramsey County taxpayers almost double the … ...