Source: https://www.arlingtontransit.com/about/art-news/art-43-45-and-55-detours-on-october-22-for-marine-corps-marathon/
Timestamp: 2019-04-23 20:12:51+00:00

Document:
On Sunday, October 22, the ART 43, 45 and 55 routes will be detoured due to the Marine Corps Marathon. The detours will last from the start of service for each route until 6:00 pm, unless otherwise noted. The ART 45 and 55 bus stops in Rosslyn will be relocated to N. Oak St., between Wilson and Key Blvds. The ART 43 Northbound bus stop in Rosslyn will not be served. See below for the detour for each route.
In Rosslyn, only the ART 43 Southbound bus stop, located at Wilson Blvd @ Fort Myer Dr, will be served during the detour. The ART 43 Northbound bus stop in Rosslyn will not be served.
Buses begin detouring from Clarendon Blvd onto Fort Myer Dr. after the Wilson Blvd @ Fort Myer Dr bus stop in Rosslyn. The route continues on to Crystal City and will serve the Crystal City Metro and VRE bus stops.
Buses begin detouring after the Crystal City VRE bus stop and will resume the regular route on Wilson Blvd at N Rhodes St in Rosslyn.
Due to race festivities, buses that stop at the Rosslyn Metro station, including ART 45, will be moved two blocks west to N Oak St, between Wilson and Key Blvds.
Buses begin detouring on Clarendon Blvd in Rosslyn and will go to the temporary Rosslyn Metro bus stop located at N Oak St, between Wilson and Key Blvds.
Buses begin detouring after the temporary Rosslyn Metro bus stop located at N Oak St, between Wilson and Key Blvds. The regular route resumes on Wilson Blvd at N Quinn St.
Last stop served before detour: Temporary Rosslyn Metro bus stop on N Oak St, between Wilson and Key Blvds.
Street closings in and around Rosslyn for race and post-race activities makes it necessary for ART 55 to have one detour from the start of service until 12:00 pm and a different detour from 12:00 pm until 6:00 pm. See below for information on both detours.
All buses that stop at the Rosslyn Metro station, including ART 55, will be moved two blocks west to N Oak St, between Wilson and Key Blvds.
The route will start at the temporary Rosslyn Metro bus stop located at N Oak St, between Wilson and Key Blvds and then start the detour. All westbound bus stops on Lee Highway between the Rosslyn Metro station and N Quincy St will not be served. The regular route will resume on Lee Highway after N Quincy St.
Buses begin detouring at Lee Highway and N Quincy Street. All eastbound bus stops on Lee Highway between N Quincy Street and the Rosslyn Metro station will not be served. The detour will go to the temporary Rosslyn Metro bus stop located at N Oak St, between Wilson and Key Blvds.
The route will start at the temporary Rosslyn Metro bus stop located at N Oak St, between Wilson and Key Blvds and then start the detour. The regular route will resume on Lee Highway at N Scott Street.
Buses begin detouring on Lee Highway at N Veitch Street and go to the temporary Rosslyn Metro bus stop located at N. Oak St., between Wilson and Key Blvds.

References: ART 43
 ART 45
 ART 43
 ART 43
 ART 43
 ART 45
 ART 55
 ART 55