A Ledyard woman is dead following a crash last week.
A passenger was also injured.
Three people were injured when two motorcycles struck each other on Sunday.
A pedestrian was killed near Electric Boat Tuesday night.
Thames Street is closed between Ledyard Avenue and the intersection of Eastern Point Road at Smith Street for retaining wall repair.
Starting Dec. 16, the Gold Star Memorial Bridge sidewalk between Groton and New London will be closed for around two weeks for repair work.
State police said work on downed power wires will require highway shut downs on an alternating basis.
A new report names the worst local roads in town. Did they miss any?
Police ask drivers and pedestrians to avoid the area.