From WMATA:
“On Saturday June 28 and Sunday June 29, free shuttle buses replace trains between Rhode Island Avenue and Takoma stations. There will be no Red Line service at Fort Totten Station and Brookland-CUA Station. There will be Normal Service frequencies between Shady Grove and Rhode Island Avenue stations and between Takoma and Glenmont stations.
On the Red Line, crews will be renewing switches and crossties. They will also be replacing fence and chain markers, fiber-optic cables, and electrical equipment.
Service Information
Red Line: Free shuttle buses replace trains between Rhode Island Avenue and Takoma. No Red Line service at Fort Totten Station and Brookland-CUA Station closed. Normal Service frequencies between Shady Grove and Rhode Island Avenue stations and between Takoma and Glenmont stations.
Silver Line: Normal Service
Blue Line: Normal Service
Green Line: Normal Service
Yellow Line: Normal Service
Orange Line: Normal Service”