George S. Morison

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Alton Railroad Bridge (Madison County, Illinois)
Built 1894
Lost through truss swing bridge over the Mississippi River on the Burlington Northern Railroad at Alton
Removed after the railroad line was abandoned

Bellefontaine Bridge (St. Louis County, Missouri)
Consulting engineer, 1893
Four-span through truss bridge over the Missouri River on the BNSF Railway, next to US 67
Open to one track of railroad traffic

Butler Bridge (Berkshire County, Massachusetts)
Engineer, 1882
Pratt deck truss bridge over Housatonic River on Butler Road
Open to pedestrians

Connecticut Avenue Bridge (Washington, District of Columbia)
Built 1907
Concrete arch bridge over Rock Creek on Connecticut Avenue
Open to traffic

First Bismarck Railroad Bridge (Burleigh County, North Dakota)
Chief engineer, 1882
Lost through and deck truss bridge over the Missouri River carrying the Northern Pacific Railway in Bismarck
Orginal Whipple truss spans replaced with through Warren truss spans, reusing the original piers

First Cairo Railroad Bridge (Alexander County, Illinois)
Built 1889
Lost through and deck truss bridge over the Ohio River carrying the Illinois Central Railroad in Cairo
Replaced by the current bridge, reusing many of the piers in the process

Frisco Bridge (Shelby County, Tennessee)
Built 1892
Cantilevered through truss railroad bridge over the Mississippi River at Memphis
Open to railroad traffic

Kate Shelley High Bridge (Boone County, Iowa)
Engineer, 1901
Deck truss bridge over Des Moines River on Union Pacific Railroad west of Boone
Closed to traffic

Leavenworth Railroad Bridge (Leavenworth County, Kansas)
Built 1893
Lost through truss swing bridge over the Missouri River at Leavenworth
No longer exists

Merchants Bridge (St. Louis, Missouri)
Consulting engineer, 1890
Three-span through truss railroad bridge over the Mississippi River between St. Louis and Venice, Illinois
Open to two tracks of railroad traffic. Only one train is allowed to cross the bridge at a time, due to its age.

Nebraska City Railroad Bridge (Otoe County, Nebraska)
Chief engineer, 1888
Lost Whipple through truss bridge over Missouri River
Removed

Old Blair Railroad Bridge (Washington County, Nebraska)
Chief engineer, 1883
Lost Whipple through truss bridge over Missouri River on Union Pacific Railroad
Superstructure replaced

Old Plattsmouth Railroad Bridge (Cass County, Nebraska)
Chief engineer, 1880
Lost Whipple through truss bridge over Missouri River
Replaced by new bridge

Old Rulo Railroad Bridge (Richardson County, Nebraska)
Chief engineer, 1887
Lost Whipple through truss bridge over Missouri River
Superstructure replaced

Second Omaha Railroad Bridge (Douglas County, Nebraska)
Built 1887
Lost Whipple through truss bridge over Missouri River on Union Pacific Railroad
Replaced by new bridge

Winona Railway (Chicago Burlington and Quincy) Bridge (Winona County, Minnesota)
Built 1891
Lost Through truss bridge over Mississippi River on Chicago, Burlington and Quincy Railroad (later BN RR)
Removed

Wyoming Heritage Trail Bridge (Fremont County, Wyoming)
Chief engineer, 1925
Whipple through truss bridge over Wind River on Wyoming Heritage Trail (former railroad)
Open to pedestrians