| Special Bridge Conditions Legend |
| ! | Confirmed demolition date within one year or an especially historic bridge that is threatened with demolition at any level. |
| X | The bridge has been confirmed demolished or collapsed. |
| S | The bridge has been dismantled or moved to an offsite location and is not currently available for public viewing. |
| L | Most or all of the original bridge material has been demolished and replaced, including historically significant elements, but some original parts of the bridge remain. |
| Note: This website cannot guarantee the current condition of any bridge on this website. Bridges lacking these icons should not necessarily be considered condition-free. |
| Bridge Name | HSR Rating | Facility Carried / Feature Intersected | Location | Structure Type | Structure Dimensions | Construction Date / Builder or Contractor | Description | Thumbnail |
Barters To Hodgdon Bridge
Trevett Bridge |
 | Barters Island Road Over Back River | Trevett: Lincoln County, Maine | Metal 6 Panel Rivet-Connected Warren Pony Truss, Movable: Swing (Center Pier) and Approach Spans: Metal Stringer (Multi-Beam), Fixed |
Total Length: 288 ft Main Span Length: 110 ft Roadway Width: 20 ft Main Spans: 1 |
1931 By: Berlin Construction Company of Berlin Connecticut | This bridge stands out among historic bridges in Maine as a pony truss swing bridge. | 
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Patterson Road Bridge
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| Patterson Road (ME-197) Over Eastern River | Rural: Lincoln County, Maine | Metal 10 Panel Rivet-Connected Polygonal Warren Through Truss, Fixed and Approach Spans: Concrete T-Beam, Fixed |
Total Length: 296 ft Main Span Length: 262.2 ft Roadway Width: 22 ft Main Spans: 1 |
1936 By: Pittsburgh - Des Moines Steel Company | This impressive bridge is noted in Maine for the length of its truss span. | 
| ! |
Richmond-Dresden Bridge
Maine Kennebec Bridge |
| ME-197 (Ferry Road, Patterson Road) Over Kennebec River | Richmond: Sagadahoc County, Maine and Lincoln County, Maine | Metal Rivet-Connected Polygonal Warren Through Truss, Movable: Swing (Center Bearing Center Pier) and Approach Spans: Metal Rivet-Connected Polygonal Warren Through Truss, Fixed |
Total Length: 1239 ft Main Span Length: 177.2 ft Roadway Width: 20 ft Main Spans: 1 |
1931 By: American Bridge Company of New York, New York | This long multi-span through truss contains one of the few remaining historic movable bridges left in Maine, yet is slated for demolition. | 
| ! |
South Bristol Bridge
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| ME-129 Over The Gut | South Bristol: Lincoln County, Maine | Metal Through Girder, Movable: Swing (Center Bearing Bobtail) |
Total Length: 78 ft Main Span Length: 78 ft Roadway Width: 20 ft Main Spans: 1 |
1933 By: Unknown | This rare and frequently operated bobtail swing bridge is slated for demolition and replacement! | 
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Southport Bridge
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| ME-27 (Western Avenue, Hendricks Hill Road) Over Townsend Gut | Southport : Lincoln County, Maine | Metal Rivet-Connected Polygonal Warren Through Truss, Movable: Swing (Center Bearing Center Pier) |
Total Length: 374 ft Main Span Length: 180 ft Roadway Width: 22 ft Main Spans: 1 |
1939 By: Unknown | This is one of the only larger size swing bridges in Maine, and it still operates for boats. | 
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Wiscasset Railroad Bridge
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 | Railroad (Maine Central) Over Sheepscot River | Wiscasset: Lincoln County, Maine | Metal Through Girder, Movable: Bascule (Rolling Lift) and Approach Spans: Metal 16 Panel Rivet-Connected Pennsylvania Through Truss, Fixed | Main Spans: 1 | By: Unknown | This bridge has a rare Scherzer rolling lift bascule span, but it is the even larger through truss approach spans that draw the eye. | 
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