Ralph Modjeski

of Bochnia, Poland
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Ralph Modjeski (January 27, 1861 June 26, 1940) was a Polish-born American engineer who achieved prominence as a pre-eminent bridge designer in the United States. In 1893, in Chicago, Modjeski opened his own design office, which still exists as "Modjeski & Masters," after it was joined in 1924 by Frank M. Masters. Modjeski's first project as chief engineer was Government Bridge over Mississippi River at Rock Island, IL. He took over the mis-designed Quebec Bridge after the 1907 disaster that killed 75 workers, and succeeded in creating the longest truss span in the world. Modjeski was world-famous as a designer of bridges and built nearly 40 bridges spanning the great rivers of North America. He trained succeeding generations of American bridge designers and builders, including Joseph B. Strauss. Modjeski was considered "America's greatest bridge builder." He was the recipient of numerous awards and honorary degrees.

MODJESKI INFORMATION:

Wikipedia: http://en.wikipedia.org/wiki/Ralph_Modjeski

SOURCES:

Wikipedia: http://en.wikipedia.org/wiki/Ralph_Modjeski


Alaska - Mears Memorial Bridge (Yukon-Koyukuk Census Area, Alaska)
Chief Bridge Engineer, 1923
Pennsylvania through truss bridge over Tanana River on single track of the Alaska Railroad in Nenana
Open to traffic

Ambassador Bridge (Wayne County, Michigan)
Built 1929
Wire suspension bridge over Detroit River on US I-96 and Canada 3 in Windsor, Ontario Canada and Detroit
Open to traffic

Amtrak - Groton Bridge (New London County, Connecticut)
Chief Engineer, 1919
Vertical-lift through truss bridge over Thames River on Northeast Corridor (Amtrak)
Open to traffic

Arsenal Bridge (Scott County, Iowa)
Engineer, 1896
Baltimore through truss bridge over Mississippi River on 2 lanes of traffic and 2 rail lines in Davenport
Open to traffic

Arsenal Bridge Temporary Lifting Span (Scott County, Iowa)
Built 1899
Lost Post through truss bridge over Mississippi River on Railroad
Replaced by a new bridge

Benjamin Franklin Bridge (Philadelphia County, Pennsylvania)
Chief Engineer, 1926
Suspension bridge over Delaware River on I-676/US 30 in Philadelphia
Open to traffic

Blue Water Bridge (St. Clair County, Michigan)
Design, 1938
Through truss bridge over St. Clair River on Westbound I-94 in Port Huron
Open to traffic

BNSF - Celilo Bridge (Wasco County, Oregon)
Engineer, 1912
Vertical lift bridge over Columbia River on Oregon Trunk Railroad Line in Celilo, OR and Wishram, WA
Open to traffic

BNSF - Columbia River Bridge (Clark County, Washington)
Engineer, 1908
Swing span through truss bridge over the Columbia River
Open to traffic

BNSF - Columbia Slough Bridge (Multnomah County, Oregon)
Engineer, 1908
Pratt through truss bridge over Columbia Slough on BNSF Railway in Portland
Open to traffic

BNSF - Crooked River Bridge (Jefferson County, Oregon)
Engineer, 1911
Steel arch bridge over Crooked River on BNSF/Union Pacific Railroad in Terrebonne
Open to traffic

BNSF - Missouri River High Bridge (Burleigh County, North Dakota)
Chief Engineer, 1905
Pennsylvania through truss bridge over Missouri River on BNSF Railway
Open to traffic

BNSF - Oregon Slough Bridge (Multnomah County, Oregon)
Engineer, 1908
Swing span through truss bridge over Columbia River - Oregon Slough on BNSF Railway in Portland
Open to traffic

BNSF - Willamette River Bridge (Multnomah County, Oregon)
Built 1908
Vertical lift bridge over Willamette River on BNSF Railway Line in Portland
Open to traffic

Bridge Camp Bridge (King County, Washington)
Built 1902
Pratt pony truss bridge over White River on Pedestrian Walkway
Open to traffic

Bridge Street Bridge (LaSalle County, Illinois)
Built 1911
Deck plate girder bridge over Vermilion River on Eastbound IL 18
Open to traffic

Broadway Bridge (Multnomah County, Oregon)
Engineer, 1912
Rall-Bascule lift bridge over Willamette River on Broadway Street in Portland
Open to traffic

Cairo Ohio River Bridge (Alexander County, Illinois)
Design, 1937
Cantilevered through truss over the Ohio River on US 51/60/62 between Cairo, Illinois and Wickliffe, Kentucky
Open to two-lane traffic

Cherry Street Bridge (Lucas County, Ohio)
Chief Engineer, Adapted Plans By Others, 1914
Bascule bridge over Maumee River on Cherry Street in Toledo
Open to traffic

Clark Memorial Bridge (McCracken County, Kentucky)
Design, 1931
Three-span through truss bridge over Tennessee River on US 60 in Ledbetter
Demolished and replaced.

East Street Bridge (Wood County, West Virginia)
Designer, 1907
Lost Through truss bridge over Little Kanawha River on West Virginia 14A (Alternate 14)
Replaced by new bridge

Fessenden Street Bridge (Multnomah County, Oregon)
Engineer, 1909
Warren deck truss bridge over BNSF Railway on Fessenden Street in Portland
Open to traffic

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

George Rogers Clark Memorial Bridge (Jefferson County, Kentucky)
Design, 1929
Cantilevered through truss bridge over Ohio River on US 31 between Louisville and Jeffersonville
Open to traffic

Harahan Bridge (Shelby County, Tennessee)
Built 1916
Cantilevered through truss railroad bridge over the Mississippi River at Memphis
Open to railroad traffic on two tracks; road deck rebuilt for pedestrian use

Huey P. Long Bridge (Jefferson Parish) (Jefferson Parish, Louisiana)
Chief Engineer, 1935
Cantilevered through truss bridge over the Mississippi River on US 90 in Jefferson
Open to traffic

I-74 Bridge (Scott County, Iowa)
Chief Engineer, 1935
Pair of suspension bridges over the Mississippi River on I-74 between Bettendorf and Moline
Open to traffic

Illinois Terminal - McKinley Bridge (Peoria County, Illinois)
Built 1907
Lost Bascule bridge over Illinois River on Illinois Terminal Railroad in Peoria
No longer exists

L&N - Paoli Viaduct (Orange County, Indiana)
Built 1904
Lost Deck plate girder bridge over Lost River on former Monon Railroad in Paoli
Removed

Manhattan Bridge (New York County, New York)
Built 1909
Suspension bridge over East River in New York City
Open to seven lanes of highway traffic and four subway tracks

McKinley Bridge (St. Louis, Missouri)
Built 1910
Through truss bridge over the Mississippi River at St. Louis
Open to traffic

Metropolis Bridge (Massac County, Illinois)
Consulting Engineer, 1917
Six-span through truss bridge over the Ohio River on the Canadian National Railway at Metropolis
Open to railroad traffic

Mid Hudson Bridge (Ulster County, New York)
Chief Engineer, 1930
Suspension bridge over Hudson River on US 44 and NY 55 in Highland and Poughkeepsie
Open to traffic

North Lombard Street Bridge (Multnomah County, Oregon)
Engineer, 1909
Warren deck truss bridge over the BNSF Railroad on N. Lombard St. in Portland
Open to traffic

NS - Ohio River Bridge (Hamilton County, Ohio)
Built 1922
Through truss bridge over Ohio River on Norfolk Southern Railroad in Cincinnati
Open to traffic

Old Keokuk-Hamilton Bridge (Lee County, Iowa)
Chief Engineer, 1916
Through truss bridge over Mississippi River on Keokuk Junction Railway
Open to rail traffic only. The upper deck on the Iowa side has been converted to an observation deck; the upper deck on the Illinois side is closed to traffic. Roadway traffic has been shifted to the 1985 beam span to the southwest of the bridge

San Francisco-Oakland Bay Bridge (San Francisco County, California)
Consulting Engineer, 1936
Suspension bridge over San Francisco Bay on I-80 connecting San Francisco, Yerba Buena Island, and Oakland
Open to traffic

Simon Kenton Memorial Bridge (Mason County, Kentucky)
Design, 1931
Suspension bridge over Ohio River on Business US 62/68 in Maysville
Open to traffic

Smithland Bridge (Livingston County, Kentucky)
Design, 1931
Through truss bridge over Cumberland River on US 60 at Smithland
Open to traffic

Tacony-Palmyra Bridge (Philadelphia County, Pennsylvania)
Chief Engineer, 1929
Bascule bridge over Delaware River on NJ 73 in Philadelphia
Open to traffic

Thebes Bridge (Alexander County, Illinois)
Built 1905
Cantilevered through truss railroad bridge over the Mississippi River at Thebes
Open to railroad traffic on two tracks

Twin Bridges (Henderson County, Kentucky)
Design, 1932
Pair of cantilevered through truss bridges over the Ohio River on US 41. Rehabilitated 2008
Open to traffic

UP - Melville Bridge (St. Landry Parish, Louisiana)
Chief Engineer, 1929
Warren through truss bridge over Atchafalaya River on Union Pacific Railroad at Melville
Open to traffic

UP - Omaha Railroad Bridge (2nd) (Douglas County, Nebraska)
Assistant Engineer, 1887
Lost Whipple through truss bridge over Missouri River on Union Pacific Railroad
Replaced by new bridge

Walkway Over The Hudson (Dutchess County, New York)
1907 Rehab, 1888
Cantilevered deck truss bridge over the Hudson River between Poughkeepsie and Highland
Open to pedestrians

Willamette Blvd. Bridge (Multnomah County, Oregon)
Built 1909
Warren deck truss bridge over BNSF Railway on Willamette Blvd. in Portland
Open to traffic

Wissahickon Memorial Bridge (Philadelphia County, Pennsylvania)
Engineer, 1931
Open-spandrel arch bridge over Wissahickon Creek/Lincoln Drive on Henry Avenue
Open to traffic