MINNEAPOLIS (WCCO) — The new Minnesota Vikings Stadium will not include bird-safe glass, despite months of impassioned pleas.

The Minnesota Sports Facilities Authority made the final decision Friday.

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Members have said for months they’re against using a special glass, which they say could add as much as $80 million to the project.

Bird supporters say the stadium threatens migration patterns, and thousands of birds could crash into the glass.

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The MSFA is still working with 3M Corporation to come up with a product to apply to the glass that could help prevent bird collisions.

Glass installation at the stadium could start as early as February.

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The stadium is slated to be finished in July of 2016.