Penobscot River

Penobscot River Bridge (Penobscot County, Maine)
Built 1946
Through truss bridge over Penobscot River on ME 155 in Howland
Open to traffic

Penobscot River Bridge (Penobscot County, Maine)
Built 1950
Through truss bridge over Penobscot River on Bridge Road in Chester
Open to traffic

Penobscot River Bridge (Waldo County, Maine)
Built 2006
Cable-stayed bridge over Penobscot River on US Hwy 1 & 3
Open to traffic

Waldo-Hancock Bridge (Waldo County, Maine)
Built 1931; bypassed by new bridge 2006-07; Demolished 2012-2013.
Demolished suspension bridge over Penobscot River on former US 1 in Prospect
Demolished, despite not being in the way of anything.