J4 College Park–Bethesda MetroExtra line
SystemMetrobus
OperatorWashington Metropolitan Area Transit Authority
GarageMontgomery
LiveryMetroExtra
StatusIn Service
Began serviceApril 15, 2002
LocalePrince George's County, Montgomery County
Communities servedCollege Park, Maryland, University Of Maryland, Langley Park, Maryland, Takoma Park, Maryland, Silver Spring, Maryland, Rock Creek Forest, Chevy Chase, Maryland, Bethesda, Maryland
Landmarks servedCollege Park–University of Maryland station, University Of Maryland, Langley Park, Maryland, Takoma Park, Maryland, Takoma Langley Crossroads Transit Center, Silver Spring station, Rock Creek Forest, Chevy Chase, Maryland, Bethesda station
StartCollege Park–University of Maryland station
ViaRiver Road, Paint Branch Parkway, Campus Drive, University Boulevard, New Hampshire Avenue, Piney Branch Road, Flower Avenue, Wayne Avenue, Colesville Road, East-West Highway
EndBethesda station
LevelWeekday Peak Hour Service Only
Frequency20 minutes
Operates5:20 AM – 9:30 AM, 3:25 PM – 7:45 PM
TransfersSmarTrip only