Historic Bridges of the U.S.

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Pilgrim River Bridge
Concrete arch bridge over Pilgrim River on US 41 in Houghton
Open to traffic
Built 1916; rehabilitated 1942

Portage Lake Bridge
Vertical lift bridge over Portage Lake on US 41 in Hancock
Open to traffic
Built 1960

Traprock River Bridge
Lost pony truss bridge over Traprock River on County Road S10
No longer exists
Replaced 2000

Houghton County