WASHINGTON — There are new problems with plans to extend Metro’s Silver Line to Dulles by next summer.

At the transit agency’s Thursday board meeting, Metro officials laid out a litany of issues with construction being overseen by the Metropolitan Washington Airports Authority.  

Metro COO Joe Leader called deficiencies -- ranging from problems with pre-cast concrete to the alignment of a new track -- “cause for concern for Metro.”

RELATED: 6 Metro stations to reopen, but more shutdowns are coming to Maryland, Virginia

The meeting over the growings concerns over the extension occurred just days after six Blue and Yellow line Metro stations south of Reagan National Airport reopened Monday morning after being closed for summer repairs. 

Six metro stations will reopen next month


Metro General Manager Paul Wiedefeld said that track issues could cause more maintenance issues later, so he’s demanding that contractors make fixes now.

The extension was supposed to be completed in 2018, but structural problems and other changed have pushed that back.

Metro officials made it clear that if issues are not resolved by the July 2020 scheduled opening of the second phase of the Silver Line, Metro would not accept the work for revenue passenger service.

“The issues get compounded if they are not addressed,” Wiedefeld said, adding that Metro will lose money from lost passengers.

WATCH: Blue and Yellow Lines reopen after summer shutdown

RELATED: Crews lay first tracks of Purple Line in Maryland

RELATED: 6 Blue, Yellow line Metro stations reopen after summer shutdown

Download the brand new WUSA9 app here.

Sign up for the Get Up DC newsletter: Your forecast. Your commute. Your news.