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MCLEAN, VA – Motorists are advised there will be continued ramp closures and detours during overnight hours this week at the exit ramp from the southbound I-495 (Capital Beltway Outer Loop) collector road to Georgetown Pike (Exit 44), and the on-ramp from northwest George Washington Memorial Parkway (GWMP) to southbound I-495. These closures and related work are scheduled to occur between the hours of 10 p.m. and 5 a.m.
Closures happening tonight, Monday, April 21, and Tuesday and Wednesday nights, April 22 and 23, are needed for crews to install beams for future ramps. The same ramp closures and detours are scheduled to occur Thursday night, April 24, and if needed, Friday night, April 25, to complete a traffic shift on the southbound I-495 collector road onto a newly realigned ramp.
Detour for motorists traveling on northwest GWMP to southbound I-495:
- From northwest GWMP, take exit to northbound I-495 toward Maryland
- Continue north on I-495 to Exit 41 for Clara Barton Parkway
- Stay left for westbound Clara Barton Parkway
- Take the exit to Carderock. Turn left at stop sign, followed by another left turn to merge back onto eastbound Clara Barton Parkway
- Continue on eastbound Clara Barton Parkway and exit and merge onto southbound I-495 toward Virginia
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