[2] In 1904 the company renamed itself Waterloo, Cedar Falls and Northern Railway and began expanding outward, completing a 22-mile line from Waterloo north to Waverly in 1910 and a 60-mile line south to Cedar Rapids, where connection was made with the Cedar Rapids & Iowa City interurban, in 1914.

[4] In 1956 the railway was jointly purchased by the Illinois Central and Rock Island railroads, who renamed it Waterloo Railroad and converted its freight operations to diesel power.

Illinois Central became sole owner in 1968 and abandoned most of the Waterloo Railroad in the 1970s.

[1] A section of former WCF&N track near Waterloo remains in use for freight service by Illinois Central's successor Canadian National.

[5] The former depot in Center Point (on the Waterloo-Cedar Rapids line) is used as a museum and rest stop.