| 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 |
Elm Avenue Bridge
Iowa Bridge Number 87210 |
 | Elm Avenue Over Beaver Creek | Rural: Butler County, Iowa | Metal 5 Panel Pin-Connected Pratt Through Truss, Fixed and Approach Spans: Wood Stringer (Multi-Beam), Fixed |
Total Length: 138 ft Main Span Length: 99 ft Roadway Width: 14.8 ft Main Spans: 1 |
1910 By: Unknown | Located in a scenic agricultural setting, this is an attractive truss bridge. | 
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Forest Avenue Bridge
Iowa Bridge Number 87340 |
 | Forest Avenue Over Beaver Creek | Rural: Butler County, Iowa | Metal 9 Panel Rivet-Connected Warren Pony Truss, Fixed |
Total Length: 185 ft Main Span Length: 90 ft Roadway Width: 17.1 ft Main Spans: 2 |
1922 By: Unknown | A beautiful two-span example of a standard plan Iowa pony truss. | 
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Willow Avenue Bridge
Iowa Bridge Number 86640 |
 | Willow Avenue (CR-T63) Over West Fork Cedar River | Rural: Butler County, Iowa | Metal 8 Panel Rivet-Connected Parker Through Truss, Fixed and Approach Spans: Pre-Stressed Concrete Stringer (Multi-Beam), Fixed |
Total Length: 330 ft Main Span Length: 150 ft Roadway Width: 16.7 ft Main Spans: 1 |
1920 By: Unknown | A standard plan Parker truss span is an example of a longer span standard plan truss bridge in Iowa. | 
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