| 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 | ! |
Bar Mills Bridge
Memorial Bridge |
 | ME-4A (Main Street) Over Saco River | Hollis and Buxton: York County, Maine | Metal Continuous Rivet-Connected Warren Through Truss, Fixed |
Total Length: 512 ft Main Span Length: 224 ft Roadway Width: 22 ft Main Spans: 3 |
1937 By: Boston Bridge Works of Boston, Massachusetts | This rare Warren continuous through truss is at risk for demolition despite its decent condition and historic significance. | 
| ! |
Bar Mills Canal Bridge
|
 | ME-4A (Main Street) Over Saco River Canal | Hollis: York County, Maine | Metal Continuous 6 Panel Rivet-Connected Warren Through Truss, Fixed |
Total Length: 139 ft Main Span Length: 134.8 ft Roadway Width: 22 ft Main Spans: 1 |
1937 By: Boston Bridge Works of Boston, Massachusetts | This truss span is a companion to the nearby Bar Mills continuous truss. | 
|
Bartlett Mills Bridge
|
 | US-1 (Portland Road) Over Kennebunk River | Bartlett Mills: York County, Maine | Concrete T-Beam, Fixed |
Total Length: 76 ft Main Span Length: 36 ft Roadway Width: 40 ft Main Spans: 2 |
1928 By: Unknown | A good representative example of a concrete t-beam in Maine. | 
| X |
Bonny Eagle Bridge
|
 | ME-35 (Bonny Eagle Road) Over Saco River | Hollis: York County, Maine and Cumberland County, Maine | Metal 8 Panel Rivet-Connected Polygonal Warren Through Truss, Fixed |
Total Length: 160 ft Main Span Length: 155 ft Roadway Width: 22 ft Main Spans: 1 |
1939 By: American Bridge Company of New York, New York | This historic bridge could have been rehabilitated or could have been left standing next to its replacement. | 
|
Factory Island Bridge
North Dam Mill Bridge |
| Abandoned Pipe Line Over Saco River South Channel | Biddleford: York County, Maine | Metal 9 Panel Rivet-Connected Pratt Through Truss, Fixed | Main Spans: 1 | By: Unknown | This truss bridge appears to have been built to carry a pipe line that no longer exists. | 
|
Kennebunkport Bridge
|
| ME-9 (Western Avenue) Over Kennebunk River | Kennebunkport: York County, Maine | Metal Through Girder, Movable: Swing (Bobtail) |
Total Length: 110 ft Main Span Length: 52.2 ft Roadway Width: 22 ft Main Spans: 1 |
1933 By: American Bridge Company of New York, New York | This is a good and increasingly rare surviving example of a plate girder swing bridge in Maine. | 
|
Sand Pond Road Bridge
Nasons Mills Road Bridge |
| Sand Pond Road (Nasons Mills Road) Over Little Osipee River | Rural: York County, Maine | Metal 4 Panel Rivet-Connected Pratt Full-Slope Pony Truss, Fixed |
Total Length: 111 ft Main Span Length: 53.2 ft Roadway Width: 16 ft Main Spans: 2 |
1923 By: American Bridge Company of New York, New York, United Construction Company of Albany, New York Contractors | This is an unusual bridge with its two short pony truss spans. | 
|
Sarah Mildred Long Bridge
|
| US-1 Bypass and Railroad (Boston and Maine) Over Piscataqua River | Portsmouth and Kittery: Rockingham County, New Hampshire and York County, Maine | Metal 8 Panel Rivet-Connected Warren Deck Truss, Movable: Vertical Lift and Approach Spans: Metal Deck Girder, Movable: Retractile |
Total Length: 2804 ft Main Span Length: 227 ft Roadway Width: 30 ft Main Spans: 1 |
1940 By: Phoenix Bridge Company of Phoenixville, Pennsylvania and Harrington and Cortelyou | This unique bridge has an unusual design of vertical lift, but its approach span that is a retractile type movable bridge is exceedingly rare. | 
|
Steep Falls Bridge
|
| ME-11 (Sokokis Avenue and Main Street) Over Saco River | Steep Falls: York County, Maine and Cumberland County, Maine | Metal 8 Panel Rivet-Connected Polygonal Warren Through Truss, Fixed |
Total Length: 226 ft Main Span Length: 220 ft Roadway Width: 22 ft Main Spans: 1 |
1936 By: Boston Bridge Works of Boston, Massachusetts | This impressive bridge has been denied the benefits of a maintained coat of paint. | 
|
West Buxton Bridge
|
| West Buxton Road (Moderation Street) Over Saco River | Hollis and Buxton: York County, Maine | Metal Continuous Rivet-Connected Polygonal Warren Through Truss, Fixed and Approach Spans: Metal Stringer (Multi-Beam), Fixed |
Total Length: 607 ft Main Span Length: 234 ft Roadway Width: 22 ft Main Spans: 1 |
1937 By: Harris Structural Steel Company of New York, New York | One of three very rare and unusual continuous through truss bridges in Maine. | 
| X |
World War Memorial Bridge
|
| US-1 Over Piscataqua River | Portsmouth and Kittery: Rockingham County, New Hampshire and York County, Maine | Metal 10 Panel Rivet-Connected Warren Through Truss, Movable: Vertical Lift and Approach Spans: Metal 10 Panel Rivet-Connected Polygonal Warren Through Truss, Fixed |
Total Length: 1201 ft Main Span Length: 297 ft Roadway Width: 28 ft Main Spans: 1 |
1923 By: American Bridge Company of New York, New York and J. A. L. Waddell | A memorial to soliders, this rare and technologically significant landmark historic bridge was demolished. | 
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