underway. The municipal governments of Denver, Boulder, and Lakewood had launched detailed studies of community redevelopment possibilities around station locations. The cities of Westminster, Thornton, Aurora, Greenwood Village, Englewood, Sheridan, and Arvada are also planning transit oriented development areas around some of their proposed rail stations. Central to the regional nature of the service package is Union Station. Special studies of its redevelopment and adaptation for multiple transport modes were conducted and engineering design work and property development work was underway in 2006. In May 2007, a $1.5 billion budget overrun was reported. Despite service and construction reductions, by January 2010 the budget had grown to $6.5 billion (a $1.8 billion overrun). At the same time, sales tax revenue forecasts for 2017 were projected to come in much less than originally anticipated leaving the project $2.45 billion short. On April 13, 2010, the RTD board of directors decided to postpone asking voters to further increase the current sales tax. If the tax increase fails to be implemented, the full build-out of the FasTracks plan may not take place until 2042. On August 31, 2011, US Transportation Secretary Ray LaHood announced that the US Department of Transportation had approved a $1 billion grant to the Eagle P3 project, which consists of the East and Gold commuter rail lines, covering half of the $2 billion cost of the construction of the two lines. In March 2012, RTD received an unsolicited proposal to build the I-225 Corridor line from Kiewit Infrastructure Co. After determining the proposal had merit and seeking other bids, RTD selected Kiewit to build the line. In 2013, RTD received a second unsolicited proposal this time to build the North Metro Line. RTD sought bids to build the line out in multiple phases. After receiving four bids, RTD selected the partnership of Graham Contracting Ltd., Balfour Beatty Rail Inc. and Harmon Contractors Inc. (GBBH), the same group that had submitted the unsolicited proposal. On April 26, 2013, the first completed segment of the FasTracks regional transit-expansion plan was opened to the public, the W Line. In November 2014, the first commuter rail cars arrived in Denver from the Hyundai–Rotem USA plant in Philadelphia, PA. Project details Eagle public-private partnership The Eagle public–private partnership (P3) combines two commuter rail lines, the East Line to DIA and the Gold Line to Wheat Ridge, plus a section of the Northwest Line up to