Alden & Lassig Bridge & Iron Works

of Chicago, Illinois
In 1881, John Alden and Moritz Lassig, the former general superintendent of the original American Bridge Company, founded the Alden & Lassig Bridge & Iron Works

This partnership dissolved in 1886.

Astico County Park Bridge (Dodge County, Wisconsin)
Scofield Road pony truss
Pratt through truss bridge over Crawfish River on Trail
Open to pedestrians

CNW - Des Plaines River Bridge (Cook County, Illinois)
Built 1883
Lost Through truss bridge over Des Plaines River on Chicago & North Western Railway
Replaced by a new bridge

Poplar Grove Road Bridge (Dodge County, Wisconsin)
Built 1883
Double-intersection Warren pony truss bridge over Union Pacific RR on Poplar Grove Road in Town of Lebanon


Scofield Road Overpass (Dodge County, Wisconsin)
Scofield Road, ca. 1891
Double-intersection Warren pony truss bridge over Union Pacific Railroad (Formerly Chicago & Northwestern) on Scofield Road near Lebanon
Relocated