Many streets along the Boston Marathon course will be closed to traffic on race day, Monday, April 20. Some streets in Boston will be closed even earlier to allow officials to set up the finish area. Here is a list of road closings by community.

Boston

Monday, April 20 All streets around Copley Square will be closed at 6 a.m.
All streets inside of Massachusetts Avenue will be closed at 9 a.m.
All streets outside of massachusetts Avenue will be closed at 9:30 a.m.

Commonwealth Avenue From Newton Town Line (Lake Street) to Chestnut Hill Avenue
Chestnut Hill Avenue From Commonwealth Avenue to Brookline Town Line (Ayr Road)
Beacon Street From Chestnut Hill Avenue to Brookline Town Line (Cleveland Circile)
Beacon Street From Beacon Street through Brookline
Beacon Street From Brookline Town Line (St Mary's Street) to Commonwealth Avenue
Berkeley Street From Stuart Street to Newbury Street
Commonwealth Avenue From Beacon Street to Gloucester Street
Massachusetts Avenue From Beacon Street to Belvidere Street
Boylston Street From Massachusetts Avenue to Arlington Street
Dalton Street From Belvidere Street to Boylston Street
Hereford Street From Commonwealth Ave to Boylston Street
Gloucester Street From Commwealth Ave to Boylston Street
Fairfield Street From Boylston Street to Newbury Street
Exeter Street From Commonwealth Avenue to Huntington Avenue
Dartmouth Street From St James Avenue to Newbury Street
Clarendon Street From Commonwealth Avenue to Stuart Street
Berkeley Street From Columbus Avnue to Newbury Street
St James Avenue From Arlingtonton Street to Dartmouth Street
Stuart Street From Arlington Street to Dartmouth Street
Trinity Place From St James Avenue to Mass Turnpike on-ramp
Public Alley No. 440 From Exeter Street to Dartmouth Street
Providence Street From Arlington Street to Berkeley Street

Suburbs

Brookline: Beacon Street (Rte. 9A) will be closed Monday from approximately 9:30 a.m. to 4:30 p.m.

Newton: Washington Street (Rte. 16) and Commonwealth Ave. (Rte. 30) will close Monday from approximately 9:00 a.m. to 3:30 p.m.

Wellesley: Central Street (Rte. 135) and Washington Street (Rte. 16) will close Monday from approximately 8:45 a.m. to 2:30 p.m.

Natick: East and West Central streets (Rte. 135) will close Monday from approximately 8:45 a.m. to 2 p.m.

Framingham: Waverly Street (Rte. 135) will close Monday from approximately 8:45 a.m. to 1:30 p.m.

Ashland: Union Street and Waverly Street (Rte. 135) will close Monday from approximately 7:30 a.m. to 1 p.m.

Hopkinton: East Main Street (Rte. 135) will close Monday from approximately 7:30 a.m. to 11:30 a.m.