| 词条 | Iowa Primary Road No. 4 |
| 释义 | {{Infobox road |state=IA |type=Primary |route=4 |decommissioned=1926 |previous_type=IA |previous_route=4 |next_type=IA |next_route=5 }} Primary Road No. 4 was a state highway in western Iowa. It is related to the current highways:
1 : Former state highways in Iowa |
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