CHICAGO — The Chicago Bears are seeking $855 million in public funding for infrastructure in order to build an enclosed stadium in the suburbs that could also host Super Bowls and Final Fours, according to a team consultant report released on Tuesday.

Though the Bears have said they plan to pay for the stadium itself, they are seeking assistance to help complete the project.

The report by real estate consulting firm HR&A Advisors Inc. says the $855 million would “set the stage” for a mixed-use development anchored by a stadium on a 326-acre tract of land in Arlington Heights that the team owns. That would cover costs for roads, sewers and changes to an adjacent commuter rail line.

In a letter to fans three weeks ago, team president Kevin Warren said “this is the year” to finalize plans

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