end of the venue, wrapping around the remainder of the horseshoe. The auxiliary video display currently adjacent to the easternmost section of the media areas would likely be relocated to atop the new third deck. The University of Minnesota could add all 30,000 seats in a single addition or in increments of 10,000 seats, meeting demand as it is needed (although the duplicated costs of such a plan make it unlikely). If expansion is ever undertaken, it can be completed in about 9 months so that there would be minimal interruption of a football season. 2014 changes For the 2014 and 2015 seasons, the Minnesota Vikings of the National Football League (NFL) used TCF Bank Stadium as their home venue while their new venue, U.S. Bank Stadium, was under construction at the site of the Metrodome. To help accommodate the Vikings, TCF Bank Stadium underwent several changes, including a new playing surface with heating coils, increased storage space throughout the stadium, and concession upgrades. In addition, temporary seats were installed that increased the stadium's capacity to 52,525. These accommodations were expected to cost about $7 million - an amount attributed to the overall construction cost of the new stadium. Funding The stadium's cost totals $288.5 million, of which the university will pay 52% and the state of Minnesota the remaining 48%. Including interest the state's cost is about $10 million per year or about $1.7 million per game for 25 years. About $50 million of the state's portion goes to the purchase of 2,840 acres (11.5 km2) of undeveloped university land, part of the Rosemount Research Center in Dakota County, over 25 years by the state of Minnesota who will assume responsibility for risks if the site requires environmental cleanup. The university retains its right to use the land for its "research, education and engagement mission" in perpetuity. The university's share was $111 million or 52%. TCF Financial Corporation of Wayzata is contributing $35 million over 25 years in exchange for the naming rights and other agreements. The university projected earnings of $2.5 million per year or $96 million over the life of agreements with TCF that will include marketing debit cards to alumni and ticketholders. If unable to fulfill its contractual obligations, TCF Financial Corporation must propose an alternate name subject to the approval of the university. Other corporate donations have been pledged as well, including Best Buy ($3