Historic Bridges of the U.S.

Bridge 150 (Carroll County, Indiana)
Built 1901
Stone arch bridge over Old Erie Canal on Bicycle Bridge Road in Delphi
Open to traffic

Deer Creek IN 25 Bridge (Carroll County, Indiana)
Built 1931; rehabilitated 1992
Two-span concrete arch bridge over Deer Creek on IN 25 in Delphi
Open to traffic

FT. W&WV Interurban viaduct under Monon Railroad (Carroll County, Indiana)
Built to allow the Interurban line from Lafayette to Ft. Wayne to cross under the elevated Monon line. Interurban line abandoned in 1932, CSX line abandoned in 1990's, but this structure still remains.
Abandoned concrete culvert bridge over Fort Wayne and Wabash Valley Traction Company(ex-Lafayette & Logansport Traction Company, Indiana Service Corporation, others) on CSX Transportation(ex-L&N, Monon Railroads)
Abandoned

Gilmore Bridge (Carroll County, Indiana)
Built 1905 in Pulaski County over Big Monon Ditch, moved to Carroll County and restored in 2006-07
Stearns through truss bridge over Wabash & Erie Canal on Trail in Delphi
Open to pedestrians only on a trail.

Hamilton Street Bridge (Carroll County, Indiana)
Damaged in 1995; replaced by a modern structure in 1996
Lost Whipple Through Truss over Deer Creek on 800 West in Delphi
Replaced by new bridge

Monon Railroad Deer Creek "High Bridge" (Carroll County, Indiana)
Part of the former Monon Railroad's Indy to Chicago "Air Line", this is one of two large bridges of similiar design on this route. Owasco is the other. Abandoned in 1987 and rails quickly removed and it has sat silent but intact since..
Abandoned steel trestle over Deer Creek on the Monon Railroad near Delphi
Abandoned, but still intact. Rails are removed.

Monon Railroad SR 25 Bridge (Carroll County, Indiana)
Built 1963. Once carried the famed "Hoosier" and "Tippecanoe" Passenger trains of the Monon Railroad. Was built when a new alignment of State Road 25 was constructed. Old Highway went further West to another underpass of the Monon closer to Delphi.
Steel stringer bridge over Sr 25 on Abandoned Monon Rr
Open to pedestrians

Monon Railroad Wabash River Bridge (Carroll County, Indiana)
Another slow point on the Monon Route, at one time a timber bridge, later through truss, and finally a plate girder bridge removed when rail line was abandoned in early 1990's.
Lost Deck plate girder bridge over Wabash River and County Roads either side. formerly CSX Transportation (ex-Family Lines, Louisville and Nashville, Monon 'Indianapolis, Chicago, and Louisville' Railroads) in Delphi
Lost

Red Bridge (Carroll County, Indiana)
Rehabilitated in 1999 and moved to Canal Park
Bowstring pony truss bridge over Old Wabash & Erie Canal on Delphi Historic Trails in Delphi
Open to pedestrians

State Bridge 1788 (Carroll County, Indiana)
Built 1935; rehabilitated 1990
Bridge over Us 421 on North Street in Delphi
Open to traffic

Stearns Truss (Carroll County, Indiana)
Moved from Pulaski County and Rehabilitated in 2008
Stearns through truss bridge over Old Wabash & Erie Canal on Delphi Historic Trails in Delphi
Open to pedestrians

Wabash River US 421 Bridge (Carroll County, Indiana)
Built 1934; replaced 1996
Lost six-span concrete arch bridge over Wabash River on US 421
Replaced by new bridge

Washington Street Bridge (Carroll County, Indiana)
Built 1901
Stone arch bridge over Old Erie Canal on Washington Street in Delphi
Open to traffic

Delphi, Indiana