Lackawanna Steel Co.

Garretson Outlet Bridge (Monona County, Iowa)
Built 1913
Riveted polygonal Warren pony truss bridge over Farmers Garretson Ditch on 100th Street
Open to traffic

Mallory Township Bridge (Clayton County, Iowa)
Built ca. 1890
Pratt pony truss bridge over unnamed stream on Kale Avenue
Replaced by a new bridge

Manchester Street Bridge (Merrimack County, New Hampshire)
Built 1933
Lost Pratt through truss bridge over Merrimack River on Manchester Street
Replaced by new bridge

Quarry Bridge (Marshall County, Iowa)
Built 1885
Through truss bridge over Iowa River on 3 Bridges Road
Closed to all traffic