Baker Road Bridge Wooden bridge over Quaddick Lake on Baker Road in Thompson Open to traffic Built 1940; rehabilitated 1987
Bigelow Brook Bridge Wooden bridge over Bigelow Brook on Boston Hollow Road in Ashford Open to traffic Built 1910; rehabilitated 1985
Brandy Hill Road Bridge Wooden bridge over Quaddick Lake on Brandy Hill Road in Thompson Open to traffic Built 1940; rehabilitated 1986
Butts Bridge Through truss bridge over Quinebaug River on CT 668 (Butts Bridge Road) in Canterbury Open to traffic Built 1937 by the Fort Pitt Bridge Works; rehabilitated 1988
Canal Bridge Stone arch bridge over Canal on CT 12 in Thompson Open to traffic Built 1928
Central Vermont Railroad Bridge Pony truss bridge over Central Vermont Railroad on CT 66 in Windham Open to traffic Built 1937; rehabilitated 1988
Chase Road Bridge Wooden bridge over Cady Brook on Chase Road in Putnam Open to traffic Built 1940; rehabilitated 1991
File Mile River Bridge Stone arch bridge over Five Mile River on Attawaugan-Ballouville Road in Killingly Open to traffic Built ca. 1860
Five Mile River Bridge Concrete arch bridge over Five Mile River on US 44 in Putnam Open to traffic Built 1931
Kitt Brook Bridge Wooden bridge over Kitt Brook on Tracy Road in Canterbury Open to traffic Built 1928; rehabilitated 1986
Mill Brook Bridge Lost stone arch bridge over Mill Brook on Packerville Road No longer exists Built ca. 1850; replaced 2003
Moosup River Bridge Lenticular through truss bridge over Moosup River on Brunswick Avenue Closed to all traffic Built 1886 by the Berlin Iron Bridge Co.
Moosup River Bridge Lenticular through truss bridge over Moosup River on River Street #1 in Plainfield Open to traffic Built 1886 by the Berlin Iron Bridge Co.; rehabilitated 2001
Natchaug River Bridge Concrete arch bridge over Natchaug River on CT 198 in Chaplin Open to traffic Built 1926
Peep Toad Road Bridge Stone arch bridge over Whetstone Brook on Peep Toad Road in Killingly Open to traffic Built ca. 1850; rehabilitated 1974
Putnam Memorial Bridge Concrete arch bridge over Quinebaug River on US 44 in Putnam Open to traffic Built 1925; rehabilitated 1957
Shepard Hill Road Bridge Wooden bridge over Prov & Worc Railroad on Shepard Hill Road in Killingly Open to traffic Built 2000
Willimantic River Bridge Two-span stone arch bridge over Willimantic River on CT 601 (Windham Road) Unknown status Built 1869
Willimantic River Bridge Stone arch bridge over Willimantic River on CT 32 (Bridge Street) in Windham Open to traffic Built 1868
Windham Road Bridge Two-span stone arch bridge over Willimantic River on Windham Road in Windham Closed to traffic(?) Built 1857