The cost of renovating existing buildings in the Omaha (Neb.) school district could be as much as $650 million. The Omaha World-Herald says the district's latest facility study identifies $570 million in building upgrades for 79 schools. Additional work on alternative schools and outbuildings such as stadiums could send costs swelling to somewhere between $600 million and $650 million. The estimate addresses infrastructure needs at existing buildings and does not include costs, or recommendations, for building new schools.