Norwalk River Railroad Bridge was created in 1896.
Pequonnock River Railroad Bridge was created in 1998.
Housatonic River Railroad Bridge was created in 1904.
Saugatuck River Railroad Bridge was created in 1905.
Mianus River Railroad Bridge was created in 1904.
Blackledge River Railroad Bridge was created in 1912.
River Road Stone Arch Railroad Bridge was created in 1887.
Hudson River Railroad was created in 1846.
Flint River Railroad was created in 1871.
West River Railroad was created in 1905.
Illinois River Railroad was created in 1853.
Maurice River Railroad was created in 1887.
Red River Railroad was created in 1835.