St.Louis Gateway Arch upgrade to cost $578 million

Michael Van Valkenburgh Associates(MVVA) recently presented the update plans for the Gateway Arch upgrade and a new estimate of $578.5 million was announced almost double the 2009 estimate (Parks Estimate before the Design Competition). The design has been updated since MVVA won the competition  in September and  has added key features such as the aerial gondola and a ‘lid’ on the I-70 interstate road.

Read more at stltoday.com