Special Glass Requirements Could Delay Minnesota Vikings Stadium Construction by Six Months

The Audubon Society is arguing the glass encased football stadium could kill thousands of migratory birds unless bird-safe glass is used

Minnesota Public Radio News

According to Minnesota Sports Facilities Authority chairwoman Michele Kelm-Helgen, adding bird-safe glass to the new football stadium could delay construction by six months and cost as much as $60 million extra. Currently the stadium plans to use clear glass, which some complain would pose a threat to birds. The stadium's glass maker has estimated changing to etched or fritted glass could take as long as 23 extra weeks.

Kelm-Helgren said they will test a number of 3M film coatings which could make the glass safer. As for now, Kelm-Helgren says stadium construction will proceed as planned.

(more on the Vikings' stadium glass controversy...)