Belfast Armistice Bridge[Map · Street View] Steel stringer bridge over Passagassawakeag River on a pedestrian trail (former Route 1) in Belfast Open to pedestrians only Built 1921, reopened as a pedestrian bridge in 2010
Branch Mills Road Bridge[Map] Lost stringer bridge over West Branch Sheepscot River on Branch Mills Road Replaced by a new bridge
Brooklyn Rd Bridge[Map · Street View] Parker pony truss bridge over Marsh Stream Seems to have been recently painted as of 2018 Built 1908 by American Bridge Co.
Burnham Bridge[Map] Lost Pratt pony truss bridge over Sebasticook River on Troy Road Replaced by a new bridge
CMQ - Marsh Stream Bridge[Map · Street View] Deck plate girder bridge over Marsh Stream & Stream Road on Railroad (Central Maine and Quebec Railway) Built 1905
CMQ - Mount Waldo Road Overpass[Map] Steel stringer bridge over Mount Waldo Road on Railroad (Central Maine and Quebec Railway) Open to traffic Built 1905
CMQ - US 1 Overpass[Map · Street View] Pony/through plate girder bridge over US 1 & ME 3 on Central Maine and Quebec Railway (Searsport Branch) Open to traffic Built 1960
CMQ - US1A Overpass[Map · Street View] Girder bridge over US 1A on Railroad (Central Maine and Quebec Railway) Open to traffic Built 1951
Ducktrap River Bridge[Map] Lost Concrete tee beam bridge over Ducktrap River on US 1 Replaced by new bridge Lower deck built in 1920; upper deck built in 1932; Replaced in 1999
Waldo-Hancock Bridge[Map · Street View] Demolished suspension bridge over Penobscot River on former US 1 in Prospect Demolished, despite not being in the way of anything. Built 1931; bypassed by new bridge 2006-07; Demolished 2012-2013; Removed from NRHP 12-18-2013