The results after 93 votes:The results after 93 votes (from 46 participants):
%
( votes)
The Bridges of Pittsburgh, Pennsylvania
22.58%
(21 votes)
Article: https://www.pittsburghmagazine.com/does-pittsburgh-really-have-more-bridges-than-any-other-city/ & Tour Guide: https://www.visitpittsburgh.com/blog/25-famous-pittsburgh-bridges/
The Bridges along the Sheyenne River in North Dakota
17.2%
(16 votes)
Tour Guide Part 1: https://ghostsofnorthdakota.com/2015/11/03/historic-bridges-of-the-sheyenne-valley-part-one/ & Part 2: https://ghostsofnorthdakota.com/2015/11/10/more-historic-automobile-bridges/