ADA questions answered

http://rapidcityjournal.com/news/local/ada-questions-answered-experts-address-arena-closure-grandfathering-safe-harbor/article_4d7c40d5-355e-5db3-9020-2b2d0759ed32.html

"Meeting the Challenge assisted with a survey of the Rushmore Plaza Civic Center. The survey identified 400 ADA issues and estimated the cost of repairs and retrofits to be $36 million. On Tuesday, voters will consider the $180 million expansion that, instead of merely fixing the arena, would add on a new 100,000-square-foot arena, re-purpose the Barnett Arena as a multi-use space, and add a parking garage, correcting all ADA issues along the way.
The required ADA fixes are spelled out in a voluminous settlement agreement between the city and the federal Justice Department, which was signed by the feds this week after being signed by Mayor Sam Kooiker in November. The agreement resulted from negotiations following a 2012 Justice Department inspection of the arena."

There's that $36 million price tag for fixing 400 ADA issues.  So where does Mayor Kooiker and the proponents of the expansion come up with $72 million?