These maps show the highway evolution in Tama and Benton counties and the immediate surrounding area. State spur highways are in light blue, state highways in purple, US highways in red, and interstates in green.
October 16, 1926: US 30 replaces IA 6; US 218 replaces
IA 40 to Youngstown Station. IA 13 and 58 truncated; IA 150 and IA 8
replace them. |
December 5, 1933: IA 73 extended northward to Dysart,
replacing all of 212 |
1941: IA 150 replaces IA 11; IA 74 created |
1956: Paving of IA 74 causes IA 399 to be created to
serve downtown Palo; route of IA 283 probably straightened with paving |
May 27, 1980: Tama County Supervisors accept IA 135,
212, and 318. Article in Traer Star-Clipper
neglects to mention 171, but it is also turned over. |
2001: East-west segment of IA 131 turned over |
This map shows the near-future state of highways in Tama and Benton counties and their immediate surroundings. Notice how bare it seems compared to some of the years above.
Maps on this page © Jeff Morrison 2005-06
Page created 6/26/05; last updated 7/21/11