That shrinkage feeds doubts about whether managers will be able to finish the project on time and on budget.
“That is certainly the goal, but there are challenges that remain,” said Patrick A. Nowakowski, the executive director of the Dulles rail project.
If the project goes over budget, the partners — Fairfax and Loudoun counties and the Metropolitan Washington Airports Authority — will have to make up a portion of the difference on the $2.8 billion project. Toll road drivers can also expect to pay more.
Airports authority board members said they are keeping a close watch on overall spending, which has totaled $1.4 billion so far.
“It is something we’re paying close attention to,” said Robert Brown, who chairs the airports authority board’s finance committee. “We’re watching what gets used because we don’t want to be over budget.”
The chairman of the Loudoun County Board of Supervisors, Scott K. York (I), said that if the project went over budget, all the partners would share the burden.
“We’re always concerned that something could go over budget,” York said. “They’ve told us that they were still well within the contingency.”
The chairman of the Fairfax County Board of Supervisors, Sharon Bulova (D), said that with 50 percent of the construction complete, she expects that those items that would have consumed large amounts of the contingency fund are mostly done.
“What I’m being told now from [the airports authority] and county staff is that they feel the project appears to be within budget and the contingency should not be used up and we will not be required to put in more money,” she said.
Fairfax monitors the project on a weekly basis, Bulova said. “I’m not losing any sleep yet, but I’m certainly paying attention,” she said.
Metro’s biggest expansion
The rail project, the biggest expansion of Metrorail since the system was built more than 35 years ago, has been fraught with controversy over its cost. Most recently the focus has been on whether the station at Dulles International Airport should be above or below ground.
The first phase of the 23-mile line, which is expected to be completed by December 2013, stretches 11.5 miles, branching off the Orange Line, running through Tysons Corner and terminating at Wiehle Avenue in Reston. Construction on that phase started in March 2009.
Nowakowski, who works for the airports authority, the entity responsible for building the Dulles rail line, said the most expensive parts of the first phase are done. A few items remain to bid, including pavers for station platforms, pedestrian bridges over roadways and the shifting of highway lanes back to their original locations.