Bollman Truss Bridge
Coordinates: 39 ° 8 ′ 5 ″ N , 76 ° 49 ′ 31 ″ W.
| Bollman Truss Bridge | ||
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| use | Footpath , formerly a railway | |
| Convicted | Savage Mill Trail | |
| Subjugated | Little Patuxent River | |
| place | Savage (Maryland) | |
| construction | Bollman carrier | |
| overall length | 48.8 m | |
| Number of openings | 2 | |
| Longest span | 24.4 m | |
| completion | 1869 | |
| location | ||
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The Bollman Bridge , English Bollman Truss Bridge is a former railroad bridge over the Little Patuxent River near Savage in the US state of Maryland . It is the only surviving bridge with a Bollman girder and was included in its list of historical milestones in civil engineering by the American Association of Civil Engineers ( ASCE) as the first national engineering monument .
history
The first on a range of Baltimore and Ohio Railroad Bridge was built in 1869 and used to its present location in 1887 siding a flat mill built. It replaced an arched stone bridge that could no longer be used due to the redesign of the mill. The bridge was in operation until 1947 without ever being reinforced. The shunting work was finally carried out with additional wagons so that the locomotives no longer had to drive on the bridge themselves.
In the 1960s, people became aware of the bridge's historical significance. The building was repaired and freshly painted. The bridge is in a park and crosses a footpath. On February 16, 2000, the bridge was granted National Historic Landmark status .
Web links
Individual evidence
- ^ Bollman Truss Bridge. (No longer available online.) ASCE, archived from the original on October 31, 2013 ; accessed on November 17, 2013 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ^ Bollman Bridge. In: Bridgehunter.com. Retrieved December 20, 2013 .
- ↑ Listing of National Historic Landmarks by State: Maryland. National Park Service , accessed August 4, 2019.
