Statements (16)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:company
|
| gptkbp:activePeriod |
early 20th century
late 19th century |
| gptkbp:country |
gptkb:United_States
|
| gptkbp:field |
civil engineering
|
| gptkbp:foundedBy |
gptkb:John_Alexander_Low_Waddell
gptkb:Ira_G._Hardesty |
| https://www.w3.org/2000/01/rdf-schema#label |
Waddell & Hardesty
|
| gptkbp:notableWork |
gptkb:Hannibal_Bridge
gptkb:South_Halsted_Street_Bridge gptkb:ASB_Bridge |
| gptkbp:specialty |
movable bridges
railroad bridges |
| gptkbp:bfsParent |
gptkb:Anthony_Wayne_Bridge
gptkb:Arthur_Kill_Vertical_Lift_Bridge_(freight_only) |
| gptkbp:bfsLayer |
6
|