Phase 2, which will run from Wiehle-Reston East to Dulles International Airport and into Loudoun County, was most recently projected to open in late 2018. This means it might not open until late 2019.
MWAA constructed Phase 1 of the Silver Line, which opened in July 2014 (about six months behind schedule). Phase 1 has five stops from Tysons Corner to Reston. It is also building Phase 2, which is projected to cost $2.7 billion and will expand the line from Wiehle-Reston East to Reston Town Center, Herndon, Route 28, Dulles International Airport and Ashburn.
More than 150 modifications have been made and integrated into the design for Phase 2, says MWAA. Many of these modifications parallel design changes made in the latter stages of Phase 1 and will enhance the safety and reliability of Phase 2. The modifications, when combined with associated weather and construction delays, have extended the Phase 2 construction schedule by about 13 months, MWAA officials said.
“Over 100 design changes were made in Phase 1 — a large number of them ordered in the final months of the construction process — requiring additional design, engineering, construction, management and oversight work,” Charles Stark, the Airports Authority’s executive director of the Silver Line project, said in a statement.
“For consistency, many of these same safety and reliability modifications needed to be incorporated into Phase 2 of the project, which then impacted the schedule.”
MWAA announced late last year that the entire 11-mile Phase 2 would need changes to comply with new stormwater regulations.
Meanwhile, MWAA said remaining work done to finalize Phase 1 of the project will add $76 million, or about 2.6 percent, to the previously announced Phase 1 cost of $2.8 billion.
The new Phase 1 cost of $2.982 billion remains within the original federally approved Phase 1 budget and toll rates on the Dulles Toll Road will not be affected, MWAA said. Toll rates will remain at current levels through 2018.
A recently concluded global settlement with the construction contractor for Phase 1, Dulles Transit Partners, along with the resolution of other outstanding matters – including the close-out of Virginia permits which allowed Phase 1 work within Routes 7 and 123 in Tysons Corner, and the execution of contracts to supplement certain Phase 1 work, as required by WMATA – has allowed the Airports Authority to project a final Phase 1 close-out cost of $2.982 billion, which represents an additional cost of about $76 million, and to move to the final close-out of the Phase 1 project.
The majority of the remaining work on Phase 1, which opened for business in July 2014, will be completed by the end of this year, including the delivery of 64 new rail cars at a cost of $189.4 million to expand the Metrorail fleet. Final close-out of Phase 1 is expected to occur in 2016.
“The Phase 1 global settlement is an important milestone in the Silver Line project, following its successful launch in July 2014,” Airports Authority CEO Jack Potter said. “It gives us closure on the most substantial cost component of Phase 1, ensures we will achieve the project’s federal budget targets and allows us to maintain the existing toll schedule for the Dulles Toll Road.”
The ultimate impact of the Phase 1 additional costs may be reduced or even eliminated if the contingency budget for Phase 2 of the Silver Line project is not fully used and the total project, both Phases 1 and 2, comes in at or under the overall project budget.
The Airports Authority also announced an update to the construction schedule for Phase 2 of the Silver Line project, which will extend service from the terminus of Phase 1 in Reston, Virginia, through Washington Dulles International Airport and into Loudoun County, Virginia.
Potter said, “The added costs arising from Phase 2 design modifications will remain within the Phase 2 contingency budget of $550 million and will have no effect on the toll rates on the Dulles Toll Road. With our project partners, we are committed to limiting future design changes. Phase 1 is already experiencing ridership beyond expectations, and significant construction and development is underway along its path in the Dulles Corridor. We are confident that Phase 2 will experience similar success.”