Historic Bridges Encyclopedia

Back to Articles PageHome: HistoricBridges.org

Darnell Plus

A List of Bridge Companies, Locations, and Years of Operation. List created by Victor Darnell and expanded by James Stewart.

PDF Version



UNITED STATES OF AMERICA

[Capacity, thousands of gross tons per year, from 1903 A. I. S. A. Directory]

___________________________________________________________________________
ALABAMA___________________________________________________________________

Birmingham
Southern Bridge Company [1] <1903>

____________________________________________________________________________
CALIFORNIA_________________________________________________________________

Los Angeles
Mercereau Bridge & Construction Company <1912-1915>

Mesmer & Rice <1914>

Oakland
Cotton Brothers c1892-1913
Ernest J. Cotton, Charles E. Cotton, J. B. Agassiz

Mervy Ewell Company <1914>

Judson Manufacturing Company [12] <1903>

San Francisco
Pacific Construction Company c1886-c1920

San Francisco Bridge Company 1880-1908+
John McMullen, M. J. McPhetres,
Herman Krusi, George W. Katt

Stockton
Clark & Henery <1902>

___________________________________________________________________________
COLORADO_________________________________________________________________

Denver
Colorado Bridge and Construction Company <1919-1924>
Charles G. Sheely

Denver Bridge Company <1907>

M. F. Levy Construction Co. <1911>

Monarch Engineering Company <1917-1920>

Charles G. Sheely <1905-1911>

Pueblo
Pueblo Bridge Company <1900-1936>

____________________________________________________________________________
CONNECTICUT_______________________________________________________________

Berlin
American Bridge Company
Berlin Works [18] 1883-c1903

Berlin Construction Company [6] 1900-

____________________________________________________________________________
DELAWARE__________________________________________________________________

Wilmington
American Bridge Company
Edge Moor Works [30] 1873-1921

__________________________________________________________________________
GEORGIA__________________________________________________________________

Atlanta Austin Brothers
George L. Austin
see Dallas, TX

Augusta
Lombard Iron Works and Supply Company [--] <1903>
_________________________________________________________________________
IDAHO___________________________________________________________________

Caldwell
J. H. Forbes & Company, Ltd. <1910>

Lewiston see Security Bridge Company, Minneapolis

_________________________________________________________________________
ILLINOIS__________________________________________________________________

Chicago
American Bridge Company
American Bridge Works [24] 1891-

American Bridge Company
Lassig Works [54] 1886-

Chicago Bridge and Iron Works [12] 1889-2005>
Horace E. Horton
C. Q. Horton (Texas agent)
included Kansas City Bridge and Iron, 1889-c1890,
and George E. King Bridge Company, 1890-c1895

Continental Bridge Company <1903-1907>
office Chicago; plant at Peotone ?

Fitz Simmons and Connell Company <1908>

Great Lakes Dredge & Dock Company <1907-1908>

Illinois Bridge Company <1912>

Illinois Steel Company (North Works) [15] <1903>
plant in North Chicago

Kelly-Atkinson Construction Company <1907-1908>

Kenwood Bridge Company [10] <1903>

Morava Construction Company <1908>

Jules E. Roemheld <1908>

Western Bridge Company [--] <1903>

Decatur
Decatur Bridge Company [0.65] <1903>

East Saint Louis
Missouri Bridge and Iron Company [1.2] <1903>

Elizabeth
Elizabeth Steel Bridge Works [1] <1903>
George Skene; see Topeka Br. & Ir. Works (KS)

Jacksonville
Eli Bridge Company see Roodhouse, IL

Illinois Bridge and Machine Company [1.5] 1900-1906
name changed to
Illinois Steel Bridge Company 1906-1962
had an office in or moved to St. Paul, MN
liquidated
Commercial Steel Fabricators c1963-c1980
operated on the same site

Joliet
Joliet Bridge and Iron Company [10] <1903>

Peoria
A. Lucas & Sons [3] <1903>

Peotone
Continental Bridge Company (see Chicago)

Roodhouse
Eli Bridge Company 1906-2005>
William E. Sullivan
moved to Jacksonville, c1919
builder of Ferris wheels etc.

Springfield
Jerome Burtle and Company c1913-1924
Burtle Construction Company
erected steel structures
see Springfield Bridge and Iron Company

Springfield Bridge and Iron Company [5] 1895-1913
plant built in 1899; closed and dismantled 1913
Joseph E. Burtle, Jerome Burtle
Thomas J. Fullenwider, S. J. Willet

Sullivan
Illinois Bridge and Iron Company [1] <1903>

____________________________________________________________________________
INDIANA_____________________________________________________________________

Anderson
Anderson Bridge and Scraper Company [--] <1903>

Attica
Attica Bridge Company [1.5] 1897-
Lorenzo C. Curtis, Ernest J. Curtis

Elkhart
Elkhart Bridge and Iron Company [3]
Elkhart Bridge Company <1903>

Gary
American Bridge Company
Gary Works c1919-

Indianapolis
Brown-Ketcham Iron Works [45] <1903>
also see Greensburg, PA

Indianapolis Bridge and Iron Works [6] <1903>
J. D. Adams and Company

National Bridge Company
Daniel B. Luten
see York, PA

New Castle Bridge Company [5] 1897-1905
moved to Indianapolis from New Castle, c1900
Central States Bridge Company (name changed, 1905) 1905-1930s
Eugene Runyan, Thomas Campbell, John Campbell,
J. E. Troyer

Noelke-Richards Iron Works [6 to 7] <1903>



Lafayette
American Bridge Company
Lafayette Works [3.6] 1889-c1903

Lafayette Engineering Company 1903-1920s
former owners of Lafayette Bridge Company

Muncie
Indiana Bridge Company [10] 1886-1920s
John R. Marsh, Charles M. Kimbrough

New Castle
see New Castle Bridge Company and Central States Bridge
Company, Indianapolis

Pan-American Bridge Company [6] <1903>

Rochester
Rochester Bridge Company [0.7] 1896-1930s
Frank N. Hoffman, Robert C. Wallace,
Lorenzo C. Curtis, William H. Deniston,
Arthur L. Densiton, Guy R. Barr

Terre Haute
Thatcher A. Parker [2] <1903>

Vincennes
Vincennes Bridge Company [5] 1898-1932>
John Oliphant, Frank Oliphant, Jacob Riddle

Wabash
Wabash Bridge and Iron Works [7.5] 1895-1903?

Winamac
Winamac Bridge Company [1] <1903>
Frain, Wade & Company

____________________________________________________________________________
IOWA_______________________________________________________________________

Clinton
Clinton Bridge Company [10] 1875-1964
Artemus Lamb
sold to C. C. Keeper, 1880s and name changed to
Clinton Bridge and Iron Works
G. E. Wilson bought in 1892
son Orrin A. Wilson was west coast agent
name changed to Clinton Bridge Company
third generation Wilsons sold, 1964, to
Allied Steel Company

Des Moines
Federal Bridge Company c1911-
Edwin S. Carpenter, Hamilton Carpenter

Iowa Bridge Company c1902-c1929
James S. Carpenter, D. S. Carpenter

George E. King Bridge Company c1889-c1912
see Chicago Bridge and Iron, Chicago (1890-c1895)

Marsh Bridge Company 1896-1909+
Marsh Engineering Company
James B. Marsh (had worked for King Bridge Co.
and George B. King Bridge Company, 1882-1896)

N. M. Stark and Company 1894-1921>
Nathaniel M. Stark, Lynn J. Tuttle

Des Moines Bridge and Iron Works [4] 1900-2000>
Des Moines Bridge and Iron Company
Pittsburgh-Des Moines Steel Company (1918)
William H. Jackson, Berkeley M. Moss, Edward W. Crellin
office opened in Pittsburgh, 1907

Marshalltown
Marshalltown Bridge, Boiler, and Machine Shops [2.5] <1903>
A. E. Shorthill Company, Inc.

Ottumwa
Fair-Williams Bridge and Manufacturing Company [2] <1903-
Ottumwa Supply & Construction Company <1908-1919>
E. D. Fair, George A. Zika, J. F. Colson

____________________________________________________________________________
KANSAS_____________________________________________________________________


Leavenworth
Leavenworth Bridge and Iron Company
John B. Tearney

Missouri Valley Bridge and Iron Works [12] 1874-1975+
Missouri Valley Bridge and Iron Company
Edwin I. Farnsworth and D. W. Eaves (1874)
A. J. Tullock, Katherine S. Tullock
J. V. Jenkins (Texas agent)

John B Tearney and Company 1875-1929
Rohr and Tearney
Al Rohr

Topeka
Fred Luttjohann {{1931}}

Topeka Bridge and Iron Works [1] <1903>
see Elizabeth Steel Bridge Works, Elizabeth, IL

Wichita
Southwestern Bridge and Iron Company, Wichita Works [4.2] <1903>
see Enid (OK) Works

____________________________________________________________________________
KENTUCKY__________________________________________________________________

Louisville
Louisville Bridge and Iron Company [7.5] <1903>

____________________________________________________________________________
MAINE______________________________________________________________________

Portland
Fletcher and Crowell Company [1] <1903>

Megquier and Jones Company [3] <1903>

____________________________________________________________________________
MARYLAND__________________________________________________________________

Baltimore
Baltimore Bridge Company [7] <1903>

Westport
Lauer and Harper Company [5] <1903>

____________________________________________________________________________
MASSACHUSETTS____________________________________________________________

Boston
Boston Bridge Works [15] 1876-1938
D. H. Andrews, John C. Moses

East Everett
New England Structural Company [17] 1899-1938
Walter B. Douglas, Charles N. Fitts

Springfield
R. F. Hawkins Iron Works [4] <1903>

Norton Bridge Works [2.5] <1903>

Springfield Construction Company [6] <1903>

Winchester see Ellis & Buswell, Woburn

Woburn J. M. Ellis & Company 1879-
Ellis & Buswell -1920s

Worcester
Eastern Bridge & Structural Company [3] 1900-1961
Ralph A. Brown, A. Sherman Miller, Jr.,
John C. Stewart

____________________________________________________________________________
MICHIGAN___________________________________________________________________

Detroit
American Bridge Company
Detroit Works [16.8] 1863-c1903

Port Huron
W. G. Jenks and R. M. Norton <1915>

Tunnel City Bridge and Iron Works <1903>

____________________________________________________________________________
MINNESOTA_________________________________________________________________

Mankato
Mayer Brothers <1904>

Minneapolis
American Bridge Company
Gillette-Herzog Works [16.8] c1891-c1903

A. Y. Bayne and Company <1909-1910>


Great Northern Bridge Company 1911-1923
S. M. Hewitt, W. E. Hewitt, C. P. Jones,
R. C. Jones, Charles T. Glasser

William S. Hewitt and Company 1899-1904>
Security Bridge Company (relocated to Billings, MT, 1911 ?) 1905-1926
Hewitt Systems (prestressed concrete) 1913>
W. S. Hewitt, son of S. M. Hewitt
Arthur L. Hewitt, cousin of W. S.
William P. Roscoe; branch office Lewiston, ID

Minneapolis Steel and Machinery Company [12] <1907-1950>
Lewis Gillette, George Gillette former owners of Gillette-Herzog
Arthur H. Allen (see Montana Br. and Ir. Co., Livingston, MT)

Red Wing
William P. Glardon <1907-1908>

Saint Paul
Saint Paul Foundry Company [7] <1903>

____________________________________________________________________________
MISSOURI___________________________________________________________________

Kansas City
A. M. Blodgett <1904>

Interstate Bridge Company <1902>

Kansas City Bridge Company <1893-1924>
G. H. Wheelock, A. Blodgett
see Chicago Bridge and Iron, Chicago

Midland Bridge Company
Freygang and Trocon 1900-c1927
Midland Bridge and Construction Company, 1921
Henry Freygang, A. A. Trocon, Ray L. Cargill

Pioneer Construction Company 1910s
Fred Hoover, Edward Appleby

Saint Louis
American Bridge Company
Koken Works, acquired c1912 c1912-

Banner Iron Works [2] <1903>

Koken Iron Works [10] 1893-c1912

Miller & Borcherding <1914>

Miller's Garage & Construction Company <1929>

Missouri Bridge & Iron Company <1908>

South Saint Louis Iron Works (1856) 1880s-2005>
John Stupp
Stupp Brothers Bridge and Iron Company (1890) [6]
George Stupp, Peter Stupp, Julius Stupp

Township Supply Company <1914>

____________________________________________________________________________
MONTANA___________________________________________________________________

Billings
see Security Bridge Company, Minneapolis

Livingston Montana Bridge and Iron Company 1909-1912?
apparently related to Minneapolis Steel and Machinery Company
Arthur H. Allen, Jacob F. Sohl, Carl Christianson

Missoula
O. E. Peppard 1890-1916>

____________________________________________________________________________
NEBRASKA__________________________________________________________________

Lincoln
Lincoln Construction Company <1914-1915>

Omaha
Empire Bridge Company <1912-1913>

Omaha Structural Steel Works <1915-1919>

Pioneer Construction Company <1920-1921>

Standard Bridge Company <1908-1909>

Western Bridge and Construction <1918>

____________________________________________________________________________
NEW JERSEY________________________________________________________________

Aldene
Jackson Architectural Iron Works [--] <1903>

Hackensack
F. R. Long and Company 1896-1911
Frank R. Long (had worked at Dean and Westbrook)

Manasquan
New Jersey Bridge Company c1890-1910
New Jersey-West Virginia Bridge Company
Wyckoop, Braly
see Wheeling, WV

New Brunswick
Raritan Structural Steel Company [20] c1903>
projected in the 1903 Directory

New Market
Levering and Garrigues Company [15] <1903>


Paterson
Passaic Rolling Mill (Bridge Division) 1876-
Passaic Steel Company, 1903 [60]
projected to increase to [100]
Passaic Structural Steel Company, 1910s

Trenton
American Bridge Company
New Jersey Steel and Iron Works [36] 1866-1921+

John A. Roebling's Sons Company <1903>


____________________________________________________________________________
NEW YORK__________________________________________________________________

Albany
American Bridge Company
Hilton Works [4.8] 1880-c1903

United Construction Company c1902-1930s
Homer R. Briggs, James R. Warr, John H. Hoff
Arthur H. Ketteredge, Walter R. Marden
independent but associated with American Bridge Co.

Brooklyn (Greenpoint)
American Bridge Company
Post & McCord Works [30] 1877-c1903

Milliken Brothers Iron Works [36] 1887-1907
moved to or second plant at Staten Island, c1906

Buffalo
American Bridge Company
Buffalo Works [7.2] 1891-c1903

Buffalo Structural Steel Company [6] <1903>

Lackawanna Bridge Company <1909-1919>
John W. Cowper, 1909-1915 (also see Worden-Allen,
Milwaukee)

Cold Spring
West Point Foundry c1818-c1889
probably did not build bridges
purchased by Cornells, c1897
J. B. and J. M. Cornell Company [50] 1897-1909
A. Gordon Murray, Michael Blake, receivers, 1910

Elmira
Elmira Bridge Company 1889-1900
American Bridge Company [31.8] 1900-1960+
Charles Kellogg, Walter Hawxhurst, Robert Grimes,
W. S. McCord
sold to American Bridge Company, 1900
one of American Bridge's main plants into the 1960s

Groton
American Bridge Company
Groton Works 1877-1902

Groton Bridge Company and similar names [6] 1877-1920
Ellery E. Colby, H. P. Colby, Frank Conger
sold to American Bridge Company, 1900
repurchased by former owners, 1902
Frank Conger and his brothers

Horseheads
American Bridge Company
Horseheads Works 1890-c1903

Horseheads Construction Company <1917-1919>
William L. Perkins
former owner(s) of Horseheads Bridge Company

Marathon
Climax Road Machinery Company 1887-1913>

Good Roads Machinery Company c1915

Montour Falls
Rochester Bridge and Construction Company [5] <1903>

New York
American Bridge Company 1900-
see various locations

Concrete-Steel Engineering Company 1900-1933
William Mueser, Edwin Thacher
consulting engineers

Empire Bridge Company 1900-1914
subsidiary of American Bridge Company
operated the A. B. shops in New York State

The Foundation Company 1902-1925>

Hamilton & Chambers <1912>

McArthur Brothers

McHarg-Barton & Company 1900s-1928
McHarg Company, Inc. 1928-


National Construction Company <c1906>
National Construction and Equipment Company
E. E. McKernan, E. W. Jackson

Owego
Owego Bridge Company [9] 1891-c1928 Ellery E. Colby and his four brothers
purchased by Frank Conger and his brothers, 1902
closed c1913-c1914; purchased by Clarence Mallery
and his brother Arlington, 1915; closed in 1917
sold to Edward S. Klausner, 1923

Painted Post
Lane Bridge Company [1] <1903>

Rochester
American Bridge Company
Rochester Works [7.2] 1886-c1903

Staten Island
see Milliken Brothers, Brooklyn

____________________________________________________________________________
NORTH CAROLINA___________________________________________________________

Burlington
Carolina Bridge and Steel Company [10] <1903>

Charlotte
Atlantic Bridge Company <1921>

____________________________________________________________________________
NORTH DAKOTA______________________________________________________________

Fargo
Fargo Bridge and Iron Company [--] <1903>
projected in the 1903 Directory

____________________________________________________________________________
OHIO_______________________________________________________________________

Bellfontaine
Bellfontaine Bridge and Iron Company [5] <1903>

Brookville
Brookville Iron Works [1] <1903>
Brookville Bridge Company <1920>
Herman S. Fox

Canton
American Bridge Company
Canton Works [12] 1864-1903+

Canton Bridge Company [5] 1876-1917>
reorganized or incorporated, 1891

Cincinnati
Lomas Forge and Bridge Works 1887-1890
Brackett Bridge Company [10] 1890-1900s
Brackett Construction Company 1900s-1924
Thomas Morris, Francis E. Morris, F J. P. Brackett

Stewart Iron Works [--] <1903>
Stewart Brothers

Cleveland
Forest City Steel and Iron Company [--] <1903>

Garry Iron and Steel Company [5] <1903>

Interstate Engineering Company [--] <1903>
projected in the 1903 Directory

King Bridge Company [30] 1871-1921?

National Iron and Wire Company [4 to 5] <1903>

Variety Iron Works [10] <1903>

Columbus
American Bridge Company
Columbus Works [4.8] c1885-c1903

Iron Substructure Company [5] <1903>

Rarig Engineering Company [15] <1903>

Findlay
Adams Brothers Company [1] <1903>

Kenton
Champion Iron Company [--] <1903>

Martins Ferry
Riverside Bridge Company [15] <1919>

Massillon
Massillon Bridge Company [8] 1869-1930s
Joseph Davenport, 1869-
Andrew J. Sprague, 1881-
Toledo-Massillon Bridge Company, reorganized, c1905
T. H. Tracy, Charles A. Peckham, W. S. Stephenson
Massillon Bridge and Structural Company, 1909
became a division of Fort Pitt Bridge Works in 1930s
see Toledo

Mount Vernon
Mount Vernon Bridge Company <1924>

Oregonia
Oregonia Bridge Company [2] <1903>

Springfield
Rogers Iron Company [1] <1903>

Toledo
American Bridge Company
Toledo Works [36] 1890-1903+

Massillon Bridge Company 1880s-1910+
Toledo-Massillon Bridge Company, reorganized, c1905
T. H. Tracy, Charles A. Peckham, W. S. Stephenson
see Massillon

Standard Engineering and Contracting Company 1918-1938

Wilmington
Champion Bridge Company [3] 1872-1930
Robert L. Owens, Abel C. Briggs, H. H. Spain
after 1930 primarily other than bridges

Youngstown
American Bridge Company
Youngstown Works [14.4] c!889-1903+


____________________________________________________________________________
OKLAHOMA__________________________________________________________________

El Reno
Fox Construction Company 1911-
John W. Fox, W. C. Armstrong, A. W. Lippe

Enid
Southwestern Bridge and Iron Company, Enid Works [1.8] <1903>
see Wichita (KS) Works

____________________________________________________________________________
OREGON____________________________________________________________________
Portland
Portland Bridge and Building Company [--] <1903>

____________________________________________________________________________
PENNSYLVANIA______________________________________________________________

Allegheny (Pittsburgh)
Pittsburgh Steel Construction Company [1.5 to 2] <1903>

Allentown
Allentown Rolling Mills [3] <1903>

Ambridge (Economy)
American Bridge Company
Ambridge Works [180 to 240] 1903-

Athens
Union Bridge Company [15] 1884-1910
sold to American Bridge Company, 1900
merger of Kellogg & Maurice, Athens, and Central
Bridge Company, Buffalo, NY
Charles Kellogg (sold his interest to Macdonald, 1887),
C. S. Maurice, George S. Field, Edmund Hayes,
Charles S. Macdonald. American Bridge dismantled
the plant in 1910

Beaver Falls
T. (Timothy) B. White & Sons Company 1868-1887
Penn Bridge Works, Penn Bridge Company [10] 1887-1920s

Canonsburg
Fort Pitt Bridge Works (see Pittsburgh)

Chambersburg
A. Buchanan 1909-1912

Nelson & Buchanan <1901-1910>
Nelson-Merydith 1907-1914
Gilbert & Nelson
Nelson Construction Company
agents for Pittsburg Bridge Co. prior to c1900

Dallastown
G. A. and F. M. Wagman <1917-
George A. Wagman, Fred M. Wagman

Dauphin
Dauphin Bridge and Construction Company [5] <1903>


Greensburg
Brown-Ketcham Iron Works [30] <1903>
also see Indianapolis, IN

Homestead
American Bridge Company
Walker Plant [16.8] <1903>

Kenton
Champion Iron Company <1903>

Pencoyd
American Bridge Company
Pencoyd Works [84] 1887-1903+

Phoenixville
Phoenix Bridge Works [50] 1884-1903>

Pittsburgh
American Bridge Company
Keystone Works [48] 1865-

American Bridge Company
Pittsburgh Works [18] 1878-

American Bridge Company
Schultz Works (McKees Rocks) [10.8] c1890-

American Bridge Company
Shiffler Works [24] 1870s-

G. L. Bollinger Company [--] <1903>

Columbia Bridge Company [10] <1903>

John Eichleay, Jr., Company [8] <1903>

Fort Pitt Bridge Company [30] 1896-1946+
Fort Pitt Bridge Works
purchased by Electric Welding Company, 1946

Hyel & Patterson <1903>

McClintic-Marshall Construction Company [50] 1900-1931
Howard H. McClintic, Charles D. Marshall
employees of Shiffler Bridge Works prior to 1900
sold to Bethlehem Steel in 1931
also see Pottstown, PA

Riter and Conley [100] 1873-1898
Riter-Conley Manufacturing Company 1898-1910>
moved to or also in Leetsdale, PA

William B. Scaife and Sons Company [30] <1903>

Pottstown
McClintic-Marshall (see Pittsburgh) [35]

Lewis F. Shoemaker and Company [10] <1903-1930>
(Schuylkill Bridge Works)

Pottsville
Eastern Steel Company [7.5] <1903>

Royersford
Keystone Structural Company [6] <1903>

South Bethlehem
Bethlehem Steel Bridge Corporation <1919>

Steelton
Pennsylvania Steel Company [30 to 40] c1891-1916
sold to Bethlehem Steel Corp., 1916

Bethlehem Steel Bridge Corporation <1918>

Waynesboro
Smith Manufacturing Company [3] <1903>

York
National Bridge Company 1902-1930
Luten Bridge Company of York
Daniel B. Luten

York Bridge Company [3] <1902-1912>

____________________________________________________________________________
TENNESSEE_________________________________________________________________

Chattanooga
Chattanooga Bridge Company [--] <1903>
projected in the 1903 Directory

Converse Bridge Company [2.5] 1890-1957
William H. Converse
sold to Mississippi Valley Steel Company, 1957

Knoxville
Luten Bridge Company 1914-1922>
George Daugherty, W. H. Long, L. G. Brown
see York, PA

Memphis
Virginia Bridge and Iron Company
see Roanoke, VA

Nashville
Nashville Bridge Company [4] 1902-1969+
Nashville Bridge and Construction Company
Arthur Dyer, W. T. Young, Leslie M. Ross
sold by Dyer family in 1969

Foster-Creighton Company <1907>
Gould Company (Louisville)
Foster-Creighton-Gould Company
Wilbur F. Creighton


____________________________________________________________________________
TEXAS______________________________________________________________________

Dallas
Austin Brothers 1908-
Austin Brothers Bridge Company 1918-
Austin Bridge Company 1923-
George L. Austin, Frank E. Austin, Charles R. Moore
also see Atlanta
prior to 1908 agents for George E. King Bridge Co., Des Moines

San Antonio
Alamo Construction Company 1914-1918
G. H. Bradford, H. L. Miller, C. G. Sheely, R. S. Dahlberg

____________________________________________________________________________
VIRGINIA____________________________________________________________________

Roanoke
Virginia Bridge and Iron Company [10] 1889-1951
offices Atlanta, Little Rock
became part of American Bridge, 1951

____________________________________________________________________________
WASHINGTON________________________________________________________________

Seattle
Puget Sound Bridge and Dredging Company [--] <1903>

____________________________________________________________________________
WEST VIRGINIA______________________________________________________________

Clarksburg
Concrete Steel Bridge Company 1912-1931
Frank D. McEnteer

Glennova (Wheeling)
West Virginia Bridge and Construction Company [10] 1894-1906?
see Manasquan, NJ

____________________________________________________________________________
WISCONSIN__________________________________________________________________

LaCrosse
LaCrosse Bridge and Steel Company [--] <1903>

Lowell
E. Kunert Manufacturing Company 1883-
Dornfeld-Kunert Company 1903-1915

Milwaukee
American Bridge Company
Milwaukee Works [12] 1891-1903+

Milwaukee Steel Structural Company 1902-1961
Milwaukee Bridge Company, 1903
Christopher Stark, Conrad Trimborn,
Max W. Nohl, F. W. Moore

Wisconsin Bridge and Iron Company [15] <1903>

Worden-Allen Company 1902-
John W. Cowper, 1909-1915 (also see Lackawanna
Bridge Co., Buffalo, NY)

Waukesha
The Modern Structural Steel Company [10] 1900-1924
P. E. Ryan, Mable Granger, W. P. Sawyer, George Harding

Wausau
Wausau Iron Works 1910-1984
Tony Heinzen, John Heinzen, Fred W. Krause

____________________________________________________________________________
WYOMING___________________________________________________________________

Sheridan
Gregg and Stout Bridge Company <1914-1915>
Jack Gregg



CANADA

____________________________________________________________________________
MAINTOBA___________________________________________________________________

Winnipeg
Manitoba Bridge and Iron Works <1920>
James A. Counter, Hugh B. Lyall
____________________________________________________________________________
ONTARIO____________________________________________________________________

Hamilton
Hamilton Bridge Company 1872-1984

Sault Sainte Marie
Algoma Steel Bridge Company <1909-1910>

Toronto
Dominion Bridge Company, see Montreal

Ontario Bridge Company 1907-1958

Windsor (Walkerville)
Canadian Bridge Company <1907-1953>

____________________________________________________________________________
QUEBEC____________________________________________________________________

Montreal (Lachine)
Dominion Bridge Company 1882-1982>
Phelps Johnson, George H. Duggan

Montreal
Saint Lawrence Bridge Company 1911-1919>?
Phelps Johnson, George H. Duggan
relation to d. b. c. ??