This letter from Board of Supervisors Chairman Sharon Bulova pre-dates the MWAA Board decision on April 6, 2011, to build an underground Metrorail station at Dulles Airport. It clearly states, however, "Therefore, Fairfax County cannot and will not absorb the expense of any alternative other than the one that has the least impact on the Phase 2 budget and Fairfax County’s share of the costs. If the Airports Authority Board favors an alignment that is more costly than the aerial alignment, then the Airports Authority should fund the differential
without impacting Fairfax County or tolls on the Dulles Toll Road."
Fairfax Board Chairman Bulova Letter to MWAA re Metrorail Costs, February 25, 2011