WMATA Reroutes C41 C51 for Construction Work

WMATA C41, C51 routes detour via 17th St SE starting March 9 for Pennsylvania Ave construction

2026-04-20, Moovit News Team

Headline

WMATA C41, C51 Routes Detour for Construction

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Two WMATA bus routes will detour around construction starting March 9, affecting riders traveling through Southeast Washington. The C41 and C51 southbound routes will bypass Pennsylvania Ave SE at Potomac Ave until further notice, transit officials said. Northbound service on both routes won't be affected by the construction work.
WMATA bus on Pennsylvania Avenue SE in Southeast Washington with construction barriers visible in background. Alt text: WMATA bus route C41 detour construction Pennsylvania Avenue SE Potomac Avenue. Composition: Street-level view showing bus approaching intersection with orange construction signs and cones, residential buildings visible, daytime lighting.

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The detour affects a key corridor connecting Anacostia to neighborhoods north of the Anacostia River. Pennsylvania Ave SE serves as a major arterial route through the Capitol Hill area, carrying multiple bus lines that link Southeast Washington communities to Metro rail stations and employment centers. Officials didn't specify what type of construction work necessitates the detour or how long the project will take. Transit agencies typically reroute buses when roadwork blocks regular routes or creates unsafe conditions for large vehicles.

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The C41 southbound to Anacostia will detour via 17th St SE at Potomac Ave, then resume its regular route on Potomac Ave SE at 14th St. The C51 southbound to Anacostia follows the same detour pattern. Northbound C41 service to West Hyattsville and northbound C51 service to Tenleytown will operate on regular routes without changes. Officials advised passengers to allow additional travel time and avoid the area if possible.
WMATA bus stop sign showing route C41 and C51 information with detour notice posted. Alt text: WMATA bus stop C41 C51 detour sign Southeast Washington Potomac Avenue. Composition: Close-up of bus stop pole with route information and temporary detour notice, residential street in background, clear focus on signage.

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The detour takes effect March 9 and will continue until further notice, according to WMATA. Officials haven't announced when construction will be complete or when buses will return to regular routing. The agency typically provides advance notice before service changes, though specific timelines for updates on this detour weren't available.

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Riders using the affected routes should plan for longer trip times during the detour period. WMATA encouraged passengers to sign up for MetroAlerts for service updates, though officials didn't say whether the agency will provide advance notice before buses return to normal routing. Moovit provides real-time bus tracking and alternative route suggestions for WMATA riders navigating service changes.