Bayberry Lane Bridge (Fairfield County, Connecticut)
Built 1939
Concrete arch bridge over Bayberry Lane on CT 15 in Westport
Open to traffic

Cross Highway Bridge (Fairfield County, Connecticut)
Built 1938
Concrete arch bridge over Cross Highway on CT 15 in Fairfield
Open to traffic

CT 243 Bridge (New Haven County, Connecticut)
Built 1948
Concrete arch bridge over CT 243 on CT 15 in New Haven
Open to traffic

CT 53 Bridge (Fairfield County, Connecticut)
Built 1937
Concrete arch bridge over CT 53 on CT 15 in Norwalk
Open to traffic

Norwalk River Bridge (Fairfield County, Connecticut)
Built 1938; rehabilitated 1988
Concrete arch bridge over Norwalk River on CT 15 in Norwalk
Open to traffic

Pumping Station Outlet Bridge (Hartford County, Connecticut)
Built 1941
Concrete arch bridge over Pumping Station Outlet on CT 15 in Hartford
Open to traffic

Rippowam River Bridge (Fairfield County, Connecticut)
Built 1936
Concrete arch bridge over Rippowam River on CT 15 in Stamford
Open to traffic

Saugatuck River Bridge (Fairfield County, Connecticut)
Built 1938; rehabilitated 1990
Steel arch bridge over Saugatuck River on CT 15 in Westport
Open to traffic

Taconic Road Bridge (Fairfield County, Connecticut)
Built 1936
Concrete arch bridge over Taconic Road on CT 15 in Greenwich
Open to traffic