| 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 |
Arrowsic Bridge
Max L. Wilder Memorial Bridge |
 | Arrowsic Road (ME-127) Over Sasanoa River | Rural: Sagadahoc County, Maine | Metal Cantilever (Arched) Rivet-Connected Polygonal Warren Through Truss, Fixed |
Total Length: 838 ft Main Span Length: 300 ft Roadway Width: 24 ft Main Spans: 3 |
1950 By: Harris Structural Steel Company of New York, New York and Max L. Wilder, Maine State Highway Commission | This rare example of an arched cantilever truss is also significant as a substantial work designed by a noted state bridge engineer. | 
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Bowdoinham Bridge
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 | ME-24 (River Road, Bay Road) Over Cathance River | Bowdoinham: Sagadahoc County, Maine | Metal 6 Panel Rivet-Connected Warren Through Truss, Fixed |
Total Length: 155.8 ft Main Span Length: 155.8 ft Roadway Width: 24.3 ft Main Spans: 1 |
1953 By: Unknown | This bridge is a good representative example of a very late state-designed riveted truss bridge in Maine. | 
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Carlton Bridge
|
 | Railroad (Maine Eastern Railroad) and US-1 (Abandoned Alignment) Over Kennebec River | Bath: Sagadahoc County, Maine | Metal 9 Panel Rivet-Connected Warren Deck Truss, Movable: Vertical Lift and Approach Spans: Metal 12 Panel Rivet-Connected Warren Deck Truss, Fixed |
Total Length: 3098 ft Main Span Length: 330 ft Roadway Width: 24 ft Main Spans: 1 |
1926 By: Unknown and J. A. L. Waddell | This impressive vertical lift bridge originally carried a highway deck on top in addition to a railroad deck below. | 
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Little River Plate Girder Railroad Bridge
|
 | Railroad (Maine Central) Over Little River | Lisbon Falls: Androscoggin County, Maine and Sagadahoc County, Maine | Metal Through Girder, Fixed | Main Spans: 1 | By: Unknown | This is a small, traditional plate girder bridge. | 
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Little River Truss Railroad Bridge
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| Railroad (Abandoned Maine Central) Over Little River | Lisbon Falls: Androscoggin County, Maine and Sagadahoc County, Maine | Metal Rivet-Connected Double-Intersection Warren Pony Truss, Fixed | Main Spans: 1 | By: Unknown | This interesting bridge is a rare variety of railroad truss bridge. | 
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Paul L. Davis Memorial Bridge
High Street Bridge |
 | High Street (ME-209) Over US-1 (Leeman Highway) | Bath: Sagadahoc County, Maine | Concrete Rigid-Frame, Fixed |
Total Length: 123 ft Main Span Length: 43 ft Roadway Width: 30 ft Main Spans: 1 |
1947 By: Unknown | Although partially altered, this bridge is a rare and good example of a rigid-frame overpass. | 
| ! |
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. | 
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