McLEAN, Va. (AP) — The construction of Metro’s silver line through the Tysons Corner area in northern Virginia will cause some closures on local roads in the coming weeks.

Three right lanes at Route 7 and the ramp from eastbound Route 7 to eastbound Route 267 will close each night through Friday from 9 p.m. to 5 a.m. They will also be closed April 22-24 during the same hours.

Three left lanes will also close April 25-27 and April 29-30 from 9 p.m. to 5 a.m.

The silver line will run through Fairfax County and eventually into Loudoun County. The first part of the project is expected to be done in August 2013. Construction on the second phase is expected to start in January 2013.

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