In Iowa, United States
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This celebrates the old "High Bridge" over the Mississippi River that was replaced by the current highway bridge.
It was often said of the High Bridge that the toll of 25 cents was actually 10 cents toll, 15 cents life insurance.
(No hints available.)
Last Updated: on 08/29/2016 02:19:57 Pacific Daylight Time (09:19 GMT)
Coordinates are in the WGS84 datum