 In May 2011, a critic estimated a range of probable cost of $3.1 to $10 billion for five miles of highway and transit work, to include a double-deck truss bridge with ten lanes for auto traffic on the top deck, with public transportation, bicycles and pedestrians below.Concerns about the tolling plan have been raised by state treasurers of both Oregon and Washington.A report by Oregon Treasurer Ted Wheeler found that "key assumptions in the traffic and toll revenue forecast used in the 2008 [Draft Environmental Impact Statement] are now outdated", and says that tolling will result in up to $598 million less than predicted earlier.