Keystone columns

View Exhibit map

Bergfeld Pond Bridge (Dubuque County, Iowa)
Built as part of Dubuque Bridge in 1872, relocated to Whitewater Creek Drive in 1898, dismantled and relocated to present site in 2007
Pratt through truss bridge over Bergfeld Pond at Bergfeld Park on Pedestrian path
Open to pedestrians only

Heritage Trail - Truss Bridge (Dubuque County, Iowa)
Built 1872, Relocated to Road 1889, relocated here in 1992, restored in 2011
Pratt through truss bridge on Heritage Trail
Open to pedestrians only

IC - Buffalo Creek Bridge (Linn County, Iowa)
Replaced 1924
Lost Pratt through truss bridge over Buffalo Creek on Railroad (IC)
Replaced by a new bridge

IC - First Dubuque Bridge (Dubuque County, Iowa)
Built 1868, Approach Trusses added 1872, Swing Span Replaced 1896, Rest of Bridge Replaced 1900
Lost Pratt through truss bridge over Mississippi River on Former Illinois Central Railroad
Replaced by a new bridge

Independence Bowstring (Verdigris River) Bridge (Montgomery County, Kansas)
Built 1871 by the Wrought Iron Bridge Co.
Bowstring through truss bridge over Verdigris River at the end of Burns Street in Independence
Abandoned with deck missing and surrounded by overgrowth

Windsor Harbor Bridge (Jefferson County, Missouri)
Originally built 1874 by the Keystone Bridge Co. over River Des Peres at Lemay Ferry in St. Louis. Relocated to Kimmswick in 1930; bypassed by new bridge in 1985.
Wrought-iron through truss over Rock Creek on Windsor Harbor Road in Kimmswick
Open to pedestrians only