| 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 |
Bertram Bridge
Ely Street Bridge |
 | Ely Street Over Big Creek | Bertram: Linn County, Iowa | Metal 5 Panel Pin-Connected Pratt Through Truss, Fixed |
Total Length: 208 ft Main Span Length: 89 ft Roadway Width: 13.5 ft Main Spans: 2 |
1891 By: J. E. Jayne and Son of Iowa City, Iowa | A well-preserved truss bridge built by an obscure bridge company. | 
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Bertram Road Bridge
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 | Bertram Road Over Indian Creek | Near Cedar Rapids: Linn County, Iowa | Metal 8 Panel Pin-Connected Hammond Through Truss, Fixed |
Total Length: 191 ft Main Span Length: 115.2 ft Roadway Width: 15.7 ft Main Spans: 1 |
By: Wrought Iron Bridge Company of Canton, Ohio | One of the most important bridges in the state, this bridge has an extremely rare truss design and follows several patented designs. | 
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Big Creek Road Bridge
Iowa Bridge Number 220880 |
| Big Creek Road Over Big Creek | Bertram: Linn County, Iowa | Metal 6 Panel Pin-Connected Pratt Through Truss, Fixed and Approach Spans: Wood Stringer (Multi-Beam), Fixed |
Total Length: 118 ft Main Span Length: 100 ft Roadway Width: 15.4 ft Main Spans: 1 |
By: Unknown | This attractive structure appears to have been well maintained. | 
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Bloomington Road Bridge
Iowa Bridge Number 220800 |
 | Bloomington Road Over Big Creek | Rural: Linn County, Iowa | Metal 8 Panel Rivet-Connected Parker Through Truss, Fixed |
Total Length: 154.2 ft Main Span Length: 150 ft Roadway Width: 19.7 ft Main Spans: 1 |
1925 By: Unknown | Located on original Lincoln Highway alignment, this bridge is an attractive standard plan bridge. | 
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Old Bridge Road Bridge
Iowa Bridge Number 220430 |
 | Old Bridge Road Over Prairie Creek | Near Cedar Rapids: Linn County, Iowa | Metal 6 Panel Pin-Connected Pratt Through Truss, Fixed |
Total Length: 102 ft Main Span Length: 100 ft Roadway Width: 14.4 ft Main Spans: 1 |
1906 By: Indiana Bridge Company of Muncie, Indiana | This bridge was built by a long-lived and noteworthy bridge company. | 
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Rosedale Road Bridge
Iowa Bridge Number 220750 |
| Rosedale Road Over Indian Creek | Near Cedar Rapids: Linn County, Iowa | Metal 5 Panel Pin-Connected Pratt Through Truss, Fixed and Approach Spans: Wood Stringer (Multi-Beam), Fixed |
Total Length: 105 ft Main Span Length: 89 ft Roadway Width: 13.8 ft Main Spans: 1 |
1890 By: Unknown | An attractive, traditionally composed truss bridge that has been carefully maintained. | 
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