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B&O Roundhouse Turning Bridge (Cuyahoga County, Ohio)
Pony/through plate girder bridge on Baltimore & Ohio Railroad
Open to traffic

Bagby Turntable (Mariposa County, California)
Timber stringer bridge on Yosemite Valley Railroad
Intact but closed to all traffic

C&O - Turntable Bridge (Sanilac County, Michigan)
Installed 1960 by reusing a railroad turntable from Ottawa, WV to replace an older wooden structure; railroad abanded in 1991
Abandoned deck plate girder bridge over Black River on Chesapeake & Ohio RR (abandoned)

Dairy Road Overpass (Chester County, Pennsylvania)
Overhead wooden trestle 1883.Replaced by an old Pennsylvania Railroad Turntable in 1908
Bridge over former Pennsylvania Railroad Schuylkill Division on Dairy Road
Open to limited local traffic

Forrest RR Turntable (Livingston County, Illinois)
Installed 1917, replacing a 70 ft. turntable installed June 1904
Abandoned deck plate girder bridge over former roundhouse pit on Wabash Ry

Milby Street Roundhouse (Harris County, Texas)
Pony/through girder turntable on Union Pacific Railroad Co., Galveston Subdivision
Intact but closed to all traffic

MILW - South Cle Elum Turntable (Kittitas County, Washington)
Built 1910
Lost Pony/through girder bridge on Chicago, Milwaukee, St. Paul & Pacific Railroad
Removed but not replaced

Port Jervis Turntable (Orange County, New York)
Restored 1996
Deck plate girder bridge on Railroad
Don't know

Reith turntable (Umatilla County, Oregon)
Lost Pony/through plate girder bridge
No longer exists

St. Johnsbury Turntable (Caledonia County, Vermont)
Built 1912 by American Bridge Co.;
Abandoned deck plate girder bridge over Turntable Pit

UP - Hinkle Turntable (Umatilla County, Oregon)
Built at Ogden Utah, Moved here 1998
Warren pony truss turntable
Open to traffic

WB&A - Crain Highway Overpass (Anne Arundel County, Maryland)
1921 cantilevered railroad turntable
Lost Bridge over Jabez Branch on WB&A RR
Removed but not replaced