| 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 |
11th Street Bridge
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 | 11th Street Over Power Canal | Turners Falls: Franklin County, Massachusetts | Metal Rivet-Connected Double-Intersection Warren Through Truss, Fixed |
Total Length: 205 ft Main Span Length: 167 ft Roadway Width: 24 ft Main Spans: 1 |
1915 By: Eastern Bridge and Structural Company of Worcester, Massachusetts | One of the oddest bridges in the country; consisting of two through trusses on either side of the roadway, this bridge is essentially a massive pony truss. | 
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Ambridge Bridge
Ambridge-Aliquippa Bridge / Ambridge-Woodlawn Bridge |
 | 11th Street Over Ohio River | Ambridge and Aliquippa: Beaver County, Pennsylvania | Metal Cantilever 22 Panel Multiple-Type-Connected Baltimore Through Truss, Fixed and Approach Spans: Metal 8 Panel Rivet-Connected Warren Pony Truss, Fixed |
Total Length: 1995.2 ft Main Span Length: 530 ft Roadway Width: 27 ft Main Spans: 5 |
1927 By: American Bridge Company of New York, New York and T. J. Wilkerson of Beaver Falls, Pennsylvania | This gorgeous and unique multi-cantilever span design is a testimony to why Ambridge is even in existence! | 
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