|
gptkbp:instanceOf
|
gptkb:bridge
gptkb:historic_building
|
|
gptkbp:addedToNationalRegisterOfHistoricPlaces
|
1966
|
|
gptkbp:architecturalStyle
|
gptkb:Bollman_truss
|
|
gptkbp:builtYear
|
1869
|
|
gptkbp:crosses
|
gptkb:Little_Patuxent_River
|
|
gptkbp:currentUse
|
gptkb:bridge
|
|
gptkbp:designer
|
gptkb:Wendel_Bollman
|
|
gptkbp:engineeringSignificance
|
first successful all-metal bridge design used on a railroad
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Bollman Truss Bridge
|
|
gptkbp:latitude
|
39.1375
|
|
gptkbp:length
|
160 feet
|
|
gptkbp:location
|
gptkb:Savage,_Maryland,_United_States
|
|
gptkbp:longitude
|
-76.8253
|
|
gptkbp:material
|
wrought iron
cast iron
|
|
gptkbp:namedAfter
|
gptkb:Wendel_Bollman
|
|
gptkbp:NRHPReferenceNumber
|
66000392
|
|
gptkbp:numberOfSpans
|
1
|
|
gptkbp:owner
|
gptkb:Howard_County,_Maryland
|
|
gptkbp:partOf
|
gptkb:Savage_Mill_Historic_District
|
|
gptkbp:purpose
|
gptkb:bridge
|
|
gptkbp:restored
|
1978
2000
|
|
gptkbp:significance
|
oldest surviving iron railroad bridge in the United States
only surviving example of the Bollman truss system
|
|
gptkbp:type
|
through truss
|
|
gptkbp:width
|
25 feet
|
|
gptkbp:bfsParent
|
gptkb:Berlin_Iron_Bridge_Company
|
|
gptkbp:bfsLayer
|
7
|