optimistic bus rapid transit scheme projected 6,000 daily passengers in 2035 with the updated methodology. The draft environmental impact report was completed in 2013. The Federal Transit Administration (FTA) declined to review it, since "reasonable funding sources" were not available, and the project was placed on indefinite hold. The DEIR was never released for public review and comment. A proposal was advanced to create a "Phase I" service between the Redwood City Caltrain station and a new Willow Road Dumbarton Rail station. In the same meeting, the Alameda County Transportation Commission announced (in a letter from Scott Haggerty) that "For the new Measure BB funds identified for the Dumbarton Corridor Area Transportation Improvements, a rail project and/or activities to support a rail project cannot be funded with these funds," effectively ending Alameda County's participation in DRC. 2016–2020: Facebook revival In 2016, Facebook announced they were providing SMCTA with $1 million to study different methods to improve traffic over the Dumbarton corridor, both short and long-term, including traffic light timing, HOV lanes, and possible bus rapid transit over the old Dumbarton Rail Bridge. Facebook headquarters are within walking distance of the proposed Willow Road station and could be a potential source of new ridership that was not accounted in the prior studies. The draft final report for the Dumbarton Transportation Corridor Study (DTCS) was released in August 2017. DTCS proposes a phased approach, with improvements to bus service (over the Dumbarton [Road] Bridge) to be implemented by 2020, diesel trains over the Dumbarton Rail Bridge to Union City by 2030, and finally electrification of the rail line by 2035, at a total estimated cost of $1.6 billion. This combined phasing contrasts with earlier DRC studies, which assumed that enhanced bus or rail service as mutually exclusive alternatives. In August 2018, SamTrans partnered with Cross Bay Transit Partners (CBTP), a limited liability corporation formed by Facebook and the Plenary Group, to perform full environmental impact analyses and a fiscal impact analysis for the project or explore possible alternatives. The public-private partnership began an environmental review process in 2019. Four public meetings were held in February and March 2019 to publicize the partnership's efforts and to gather input on the proposed concepts. On the Peninsula, three rail stations have been proposed: the western terminus at the existing Redwood City station, Marsh station (in North Fair Oaks, near the intersection of Spring/15th and Bay/Florence),