Keystone Bridge Co.
of Pittsburgh, Pennsylvania
View Exhibit map
Aden Road Bridge (Prince William County, Virginia)
Built 1882Through truss bridge over Southern Railroad on Aden Road in NokesvilleOpen to traffic.
Air Line Railroad Bridge (Middlesex County, Connecticut)
Built 1872Lost Linville-Piper Variant Whipple through truss bridge over Connecticut River on New York, New Haven & Hartford RailroadReplaced by a new bridge
Bergfeld Pond Bridge (Dubuque County, Iowa)
Built 1872Pratt through truss bridge over Bergfeld Pond at Bergfeld Park on Pedestrian pathOpen to pedestrians only
Blevins Bridge (Carter County, Tennessee)
Built 1889Pin-connected Pratt through truss bridge over Doe River on Old Tweetsie RailroadOpen to single-lane traffic
BNSF - S&S Canal Bridge (Cook County, Illinois)
Built 1898Two track Pratt through truss bridge over Sanitary & Ship Canal on BNSF (former Santa Fe) RailroadOpen to traffic
BNSF - Sun River Bridge (Cascade County, Montana)
1899 Span, 1928Warren through truss bridge over Sun River on Railroad (BNSF)Open to traffic
BO - Arthur Kill Bridge (Richmond County, New York)
Built 1899Lost Through truss bridge over Arthur Kill Creek on former Baltimore & Ohio RRReplaced by a new bridge
BO - Bellaire Bridge (1871) (Belmont County, Ohio)
Linville-Piper Variant Whipple Trusses, 1871Lost Linville-Piper Variant Whipple through truss truss bridge over Ohio River on Baltimore & Ohio RailroadReplaced by a new bridge
BO - Parkersburg Bridge (Old) (Wood County, West Virginia)
Built 1871Lost Whipple through truss bridge over Ohio River on Baltimore & Ohio RailroadReplaced by a new bridge
Brown Street Bridge (Crawford County, Pennsylvania)
Built 1899Lost through truss bridge over Oil Creek on Brown StreetReplaced by new bridge
C&A - Louisiana Bridge (Pike County, Missouri)
Short Warrens, 1873Lost Whipple through truss bridge over Mississippi River on Chicago & Alton RailroadReplaced by a new bridge
C&S - Mill Gulch Bridge (Jefferson County, Colorado)
Built 1870Pratt through truss bridge over South Platte River on Denver, South Park & Pacific Railroad, rail bed and bridge converted to road use in 1935. Bridge relocated from this location and preserved in Bailey, CO in 1985Relocated and preserved
Callowhill Street Bridge (Philadelphia County, Pennsylvania)
Built 1875Lost Whipple deck truss bridge over Schuylkill RiverReplaced by a new bridge
Capital Crescent Trail - C&O Canal Bridge (Washington, District of Columbia)
Whipple span, 1885Whipple through truss and Pratt through truss bridge over Canal & Arizona Avenue on Capital Crescent Trail (formerly B&O Railroad)Open to pedestrians
Cedar Creek Bridge (Adams County, Illinois)
Built 1875Lost Through truss bridge over Cedar CreekNo longer exists
Chouteau Bridge (Jackson County, Missouri)
Built 1887Lost three-span Whipple truss bridge over the Missouri River in Kansas CityReplaced by new bridge in 2001
Cincinnati Southern Ohio River Bridge (1st) (Hamilton County, Ohio)
Built 1877Lost Linville variant Whipple through truss swing bridge over Ohio River on the Cincinnati Southern Railroad at CincinnatiSuperstructure replaced
Cloie Bridge (Dubuque County, Iowa)
Built 1890Relocated Pratt through truss bridge formerly over Little Maquoketa River on Clay Hill DriveReplaced by new bridge; truss bridge sitting next to Heritage Trail just NW of Access Road
CN - Dubuque Bridge (Dubuque County, Iowa)
Swing Span, 1899Mississippi River crossing on BNSF Railway, Canadian National Railway in DubuqueOpen to railroad traffic
CNTP - New River Viaduct (1st) (Scott County, Tennessee)
Per ASCE Proceedings Volumes 18-21, 1879Lost Fink deck truss bridge over New River on Cincinnati Southern Railway/Cincinnati, New Orleans, & Texas Pacific RailwayReplaced by a new bridge
CNW - Little Wind River Bridge (Fremont County, Wyoming)
Built 1927Whipple through truss bridge over Little Wind River on Chicago & North Western RailwayRemoved but not replaced
CSX - Spottsville Swing Bridge (Henderson County, Kentucky)
Built 1926Through truss swing bridge over Green River on CSX Railroad (formerly L&N Railroad)Open to traffic
CSX - White River Bridge (Marion County, Indiana)
Built 1886Through truss bridge over White River in IndianapolisDerelict/abandoned
CTA Green Line/IC Overpass (Cook County, Illinois)
Built 1892Lost Pennsylvania through truss bridge over Illinois Central Railroad on Chicago Transit Authority Green LineRemoved
DN - Tounge River Bridge (Pembina County, North Dakota)
Built 1899Pony/through plate girder bridge over Tounge River on Dakota Northern RailroadOpen to traffic
Dravosburg Bridge - Older (Allegheny County, Pennsylvania)
Built 1889Lost Pennsylvania through truss bridge over Monogahela RiverReplaced by a new bridge 1951
Eads Bridge (St. Louis, Missouri)
Substructure, 1874Three-span steel arch bridge over the Mississippi River and N. Leonor K. Sullivan Blvd. in downtown St. LouisUpper vehicular deck open to vehicular traffic on weekdays. Closed on weekends; Lower railroad deck open
Fairground Street Bridge (Warren County, Mississippi)
Built 1895Abandoned Pratt through truss over Illinois Central Railroad on Fairground St; one span was approach span Dubuque RR Bridge (1868 bridge) shortened by 1 panel (approx. 12 ft). 2nd span was also a RR bridge of unknown origin - shortened by 13.5 ft.Abandoned
Frisco Bridge (Shelby County, Tennessee)
Union Bridge Co. Superstructure Subcontractor, 1892Cantilevered through truss railroad bridge over the Mississippi River at MemphisOpen to railroad traffic
Hannibal Bridge (First) (Jackson County, Missouri)
Superstructure Contractor, 1869Lost Linville-Piper Variant Whipple through truss bridge over Missouri River on Railroad in Kansas CityNo longer exists
IC - Argyle South Bridge (Lafayette County, Wisconsin)
Likely Builder, 1888Lost Whipple through truss bridge over Pecatonica River on Illinois Central RailroadReplaced by a new bridge
IC - Buffalo Creek Bridge (Linn County, Iowa)
Lost Linville variant Whipple through truss bridge over Buffalo Creek on Railroad (IC)Replaced by a new bridge
IC - Central City Bridge (Linn County, Iowa)
Lost Linville variant Whipple through truss bridge over Wapsipinicon River on Railroad (IC)Replaced by a new bridge
IC - First Dubuque Bridge (Dubuque County, Iowa)
Built 1868Lost Pratt through truss bridge over Mississippi River on Former Illinois Central RailroadReplaced by a new bridge
IC - Pecatonica River Bridge (Green County, Wisconsin)
Built 1900Lost Linville variant Whipple through truss bridge over Pecatonica River on Illinois Central RailroadDestroyed by flooding
Keokuk Bridge (Old) (Lee County, Iowa)
Fabricator, 1871Lost Linville-Piper Variant Whipple through truss bridge over Mississippi River on Railroad/RoadReplaced by a new bridge
Keystone Bridge (Park County, Colorado)
Built 1870Wrought-iron through truss bridge over North Fork South Platte River at BaileyOpen to pedestrians only
LN - Newport & Cincinnati Bridge (Hamilton County, Ohio)
Built 1872Lost Linville-Piper Variant Whipple through truss bridge over Ohio River on L&N RailroadSuperstructure replaced
Lower Trenton Bridge (1875) (Mercer County, New Jersey)
Built 1875Lost Pratt through truss bridge over Delaware River on PRRSuperstructure replaced
Mead Avenue Bridge (Crawford County, Pennsylvania)
likely fabricator of the entire 1871 superstructure, 1871Two-span Whipple through truss bridge over French Creek on Mead Avenue in MeadvilleIn storage or disassembled
MSTL - Tracy Bridge (Mahaska County, Iowa)
Built 1907Lost Whipple through truss bridge over over Des Moines River on RailroadRemoved
NH - Seymour Covered Bridge (New Haven County, Connecticut)
1879 Pratt, 1849Lost Bridge over Naugatuck River on New York, New Haven & Hartford RailroadReplaced by a new bridge
NH - Shetucket River Bridge (1876) (New London County, Connecticut)
Built 1876Lost Whipple through truss bridge over Shetucket River on Norwich & Worcester Railroad in NorwichReplaced by a new steel bridge
NM - Missouri River Bridge (St. Charles County, Missouri)
Built 1868North Missouri Railroad Fink deck truss and Trellis through truss bridge at St. Charles, MOUpgraded 1880-1884
NYLB - Raritan River Bridge (Old) (Middlesex County, New Jersey)
Built 1875Lost Whipple through truss bridge over Raritan River on New York & Long Branch RailroadReplaced by a new bridge
Oak Ridge Bridge (Nelson County, Virginia)
Built 1882Pratt through truss bridge over Norfolk Southern Railway on Wilson Road (Route 653)Replaced by a new bridge December 2019
Omaha Bridge #15 (Old) (Ramsey County, Minnesota)
Built 1885Lost Lattice through truss bridge over Mississippi River on Chicago, St. Paul, Minneapolis & Omaha RailwayReplaced by a new bridge
Pierceville Road Bridge (Plymouth County, Massachusetts)
Built 1878Pony truss bridge over Massachusetts Coastal Railroad on Pierceville Road in WarehamOpen to traffic
Pine Creek Park Bridge (Fairfield County, Connecticut)
Built ca 1870-72Pratt pony truss bridge over Pine Creek on a pedestrian path in Pine Creek ParkOpen to pedestrians
PRR - Arsenal Bridge (Old) (Philadelphia County, Pennsylvania)
Built 1862Lost Whipple through truss bridge over the Schuylkill River on Pennsylvania RailroadNo longer exists
PRR - Maumee River Bridge (1880) (Lucas County, Ohio)
3 south Whipple spans, 1880Lost Pratt through truss bridge over Maumee River on Pennsylvania RRReplaced by a new bridge
PVRR - Third Level Canal Outflow Bridge (Hampden County, Massachusetts)
Built 1879Pratt through truss bridge over Third Level Canal Outflow on Pioneer Valley RailroadOpen to traffic but track currently used for storage
Smith Avenue High Bridge (Old) (Ramsey County, Minnesota)
Built 1889Lost deck truss bridge over Mississippi River and Canadian Pacific Railway on MN 149 at St. PaulReplaced by new bridge
South High Street Bridge (Franklin County, Massachusetts)
Built 1880Abandoned pony/through plate girder bridge over NH/B&M Turners Falls Branch on South High Street in MontagueDerelict/abandoned
The Overhead Bridge (Crawford County, Ohio)
Lost Pratt through truss bridge over Railroad on StreetNo longer exists
UP - Blair Bridge (Old) (Washington County, Nebraska)
Built 1883Lost Whipple through truss bridge over Missouri River on Union Pacific RailroadSuperstructure replaced
Valley Road Bridge (York County, Pennsylvania)
Fabricator, 1870Wrought iron Pratt pony truss bridge over Valley Road on the Stewartstown RailroadIntact, but out of service since 2004
Wabash - First Missouri River Bridge (St. Charles County, Missouri)
Built 1884Lost bridge over the Missouri River with Trellis through truss and Whipple through truss spansReplaced by new bridge erected about 1/2 mile north (downstream)
White Water Creek Bridge (Dubuque County, Iowa)
Built 1872Through truss bridge over White Water Creek on Whitewater DriveReplaced by a new bridge; Truss bridge relocated to a park in Dubuque
Windsor Harbor Bridge (Jefferson County, Missouri)
Built 1874Wrought-iron through truss over Rock Creek on Windsor Harbor Road in KimmswickOpen to pedestrians only