Abt Bascule Bridge

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Abt bascule bridges follow Hugo A.F. Abt's U.S. patent #1,394,519. The patented bridges were built by American Bridge Company.

John A. Schultz Jr. of Hazelet and Erdal Inc. commented in a 1994 presentation at the 5th Biennial Symposium at Heavy Movable Structures Inc that there were only eight Abt bascule bridges built. This category identifies eight bridges, therefore this is believed to be a complete list of all Abt bascule bridges ever built.

Bacon Island Railroad Bridge (San Joaquin County, California)
Built 1929.
Pony/through plate girder bridge over Middle River on BNSF Railroad
Open to traffic

BNSF San Joaquin River Bridge (San Joaquin County, California)
Built 1930.
Through truss with pony truss bascule bridge over San Joaquin River on BNSF Railroad
Open to traffic

Manitowoc Bascule Railroad Bridge (Manitowoc County, Wisconsin)
Replaced an earlier bascule bridge in this location.
Through plate girder Abt bascule bridge over Manitowoc River on Railroad (Wisconsin Central)
Removed but not replaced

Pere Marquette Railroad Bridge (St. Clair County, Michigan)
Built 1931
Warren through truss with all verticals bridge over Black River on Pere Marquette Railroad (abandoned)
Closed to all traffic; the yacht club that owns the bridge plans to demolish it as of December 2011

Saginaw River Railroad Bridge (Saginaw County, Michigan)
Built 1944
Warren through truss with all verticals bridge over Saginaw River on CSX RR
Open to traffic

Southern Pacific Railroad Bridge (Jefferson County, Texas)
Opened in 1941, abandoned in 1967, and removed in 1969.
Lost Warren through truss Abt bascule bridge over Neches River on Railroad (Southern Pacific)
Removed but not replaced

Wabash Rouge River Bridge (Wayne County, Michigan)
Built 1922
Warren through truss with all verticals bridge over Rouge River on Norfolk Southern RR (formerly Wabash RR)
Open to traffic

Woodward Island RR bridge (Contra Costa County, California)
Built 1928.
Abt type Bascule Bridge over Old River on BNSF and Amtrak RR
Open to traffic