WASHINGTON - The Virginia Department of Transportation will close all lanes of northbound Interstate 495 near Gallows Road and Route 50 in order to narrow and shift the lanes to the right.

The closure will occur by 11 p.m. Friday. By 7 a.m. Saturday, the northbound lanes will reopen.

Saturday night the southbound lanes will be closed for the same construction. The lanes will be closed by 11 p.m. and reopen by 9 a.m.

Drivers will be directed to the exit ramp lanes for Route 50 and continue through the ramp lanes for access back onto I-495 north.

Fannie Mae Help The Homeless Walkathon

Streets along the route of the walkathon will begin closing at 7:30 a.m. Saturday. The walkathon is scheduled to begin at 9 a.m. and end at approximately 11:30 a.m.

Walkathon Route: Participants will gather on the National Mall and proceed eastbound to 7th Street, NW, then southbound on 7th Street, NW, to Independence Avenue, SW, westbound on Independence Avenue to Raoul Wallenberg Drive, SW, southbound on Raoul Wallenberg Drive, SW, to Ohio Drive, SW, around the Tidal Basin back to Independence Avenue, SW, eastbound on Independence Avenue, SW, across 14th Street and end at the intersection of 14th Street and Madison Drive, NW.

Metro work

Metro will be conducting maintenance on 4 rail lines and re-routing multiple bus lines this weekend.

Orange Line

People traveling between the East Falls Church and Ballston-MU stations should add 20 minutes to their trips as Metro will be replacing crossties. Trains will share one track from 8 p.m. on Friday to midnight on Sunday.

Red Line

People traveling between the Medical Center and Grosvenor-Strathmore stations should add 20 minutes to their trips because Metro will be replacing rail fasteners that stabilize tracks as wall as be making tunnel repairs. Trains will share one track between these locations from 9:30 p.m. Friday to midnight on Sunday.

Blue and Yellow Line

People traveling between the Van Dorn Street and King Street stations should add 30 minutes to their trips as Metro will be trimming leaves and weeds along the rail tracks. Trains will share one track between these locations from 7 a.m. to 6 p.m. on Saturday and Sunday.