Engineering

Of glance...
Edgar António of Mosque Cardoso was born in the Port in 11 of May of 1913 and formou­se in Civil Engineering in the College of Engineering of the University of the Port in 1937.
Professor University professor of the Upper Institute Technician - University Technique of Lisbon.
Honoris doctor Cause for the Federal University of Rio De Janeiro.
He was Together Engineer in the Autonomous one of the Roads up to 1951.
He is as draftsperson of Bridges that more if notabiliza.

Eugene Figg, Jr., loves bridges. His company, the Figg Engineering Group, of Tallahassee, Florida, is the only national engineering firm in America that does nothing but bridges. He loves to talk about the bridges he’s built, how they’re faring, how the people who own them feel about them now.

He’s proud of the ones that came in early and under budget (like the Natchez Trace Parkway Arches, budgeted for $15 million, brought in for $11 million). He’s equally proud of the ones that won major design awards. The National Endowment for the Arts began giving Presidential Design Awards in 1984. A total of 41 awards have been given, only five for bridges, and Figg got three of those: Lin Cove Viaduct in North Carolina (1984), Sunshine Sky Bridge in Florida (1988) and the Natchez Trace Parkway Arches in Tennessee (1995). Figg’s pride in his bridges doesn’t come off like vanity; it’s more like a parent talking to anyone who’ll listen about a child who is doing well in the world.

He was in Buffalo last week for a conference of the Association for Bridge Construction and Design, where he spoke about bridge permitting and community involvement issues, and about the community design charettes for which he has become famous. He also managed to talk with a good number of people involved in the Peace Bridge expansion: Buffalo Development Commissioner Joseph Ryan, Common Council President James Pitts, the Buffalo News editorial board, the Public Bridge Review Panel’s Technical Review Subcommittee, and about 75 people at D’Youville College, a meeting incorporated into one of the New Millennium Group’s informational sessions.

The Louisville-Nashville Railroad Bridge, constructed in 1857-1859 as part of the Louisville-Nashville Railway System, spans the Green River and is still used by trains of the current CSX system in its reconstructed form. During the construction of the L&N railroad, the Green River presented a formidable obstacle that had to be surmounted. A well-known construction engineer from Germany, Albert Fink, was hired to design and supervise the construction of a massive structure over the Green River. He planned to support the tracks and all trains over this bridge by constructing an elaborate trusswork of his own design supported by four enormous and intricately detailed stone piers. John W. Key of Woodsonville and his two sons, Abner David Lewis Key and John Martin Key, all stonemasons, were hired to construct the piers.

Mid-19th century advertisement for Wendell Bollman from a City Directory , a civil and constructing engineer noted for his truss bridges. An engraving in the ad. shows a truss bridge with a Civil War era locomotive about to cross it. The address for Bollman's works was given as Clinton Street and Second Avenue, Canton.

Between 1901 and 1903, the New York City Department of Bridges presented plans for a new swing bridge at 207th Street (Fordham Road) before the Board of Estimate. Gustav Lindenthal, the commissioner of the newly created New York City Department of Bridges, favored a lift bridge, then a new development in bridge engineering. The city was not eager to spend on this expensive design, and when the opportunity was presented to make use of the original Broadway Bridge span (which was about to be replaced by a dual-deck swing span), the city seized it. In August 1903, the War Department approved plans for the bridge, provided that allowances were made for navigable vessels at Fordham Landing, and the Board of Estimate subsequently approved the bridge.

Alfred P. Boller, who designed the Madison Avenue, 145th Street and Macombs Dam swing spans, created the design for the University Heights Bridge. In November 1903, work began on dredging and building the center pier on which the draw span was to rest. The center pier and side piers were constructed of masonry. The steel draw span, which was originally constructed over the Harlem River Ship Canal in 1895, was lifted from its pier, floated down the river and lifted onto the new center pier in June 1906. New machinery was installed to control the draw span.

It was called the most beautiful bridge in the world. At the time of its 1931 opening, it certainly was the longest single span. To honor the engineering feat it represented, a stamp with its picture was issued, and the bridge became the subject of music, even a children's book.

Yet, a section of suspension cable for the George Washington Bridge in the collections of the National Museum of American History can only hint at such glories. Three feet in diameter and ten feet long, the massive cylinder weighs an ungainly 34,000 pounds. From its ends protrude 26,474 individual steel wires, compacted under 400 tons of pressure. Before computers, this experimental section helped engineers model the effects of compression on the finished bridge's cables. Today, it represents an engineering marvel, whose creation spanned half a century of depressions, politics and the passions of two of America's greatest bridge designers.

Ralph Modjeski, considered "America's greatest bridge builder", was born in Bochnia, near the city of Krakow, Poland on January 27, 1861. He immigrated to America at the age of 15 with his mother, famous Shakespearean actress, Helen Modjeska, in July, 1876. Even though Modjeski seemed destined to become an accomplished concert pianist, he went on instead to become a highly successful civil engineer and "one of the twentieth century's most famous designers and builders of bridges". In 1929, Modjeski was awarded the John Fritz Gold Medal, the highest American engineering medal, with a citation for his genius in combining strength and beauty. He was also honored by the Pennsylvania state legislature in 1966 by a resolution citing him as one of America's "greatest inventors".

Take a virtual walk across the Mid-Hudson Bridge!! Discover various facts about the bridge. Find out about attractions in the area of the Mid-Hudson Bridge. Learn about how the bridge was conceived, designed, and built.

Eleven major bridges unite New York City together and with the rest of the nation. One engineer was responsible for more than half of them, yet hardly anyone knows his name.

Othmar Ammann came to America as a graduate of Swiss engineering schools and learned bridge building from the reigning bridge engineer, Gustav Lindenthal. As his protégé, Ammann worked on the Hell Gate Railroad Bridge, an arch bridge of unprecedented strength and beauty. Lindenthal had plans for an enormous rail bridge across the Hudson River, but they were rejected as too expensive. Ammann proposed a lighter, less expensive span for automobiles and trucks. In a painful parting, he left Lindenthal and built the landmark George Washington Bridge, a span twice as long as any suspension bridge in the world.

June 13 -- Dr. D.B. Steinman, designer of the St. John's Bridge, chose a gothic style of architecture with the determined purpose of making the span his most beautiful work, "The gothic arch was made of stone in the mideval days because steel had not been developed. It is really more appropriate in steel. Until recently the public took it for granted that steel bridges had to be utilitarian and unattractive, but now the interest is turning to the development of forms of beauty in steel."

Though accustomed to having the type of bridge left to his discretion, Dr. Steinman & Robinson, Consulting Engineers, worked out and submitted to the county commissioners plans and estimates for both the suspension and the canti- lever forms before the former was finally chosen. His estimate showed that the suspension type, beside from being more suitable for the site, would be $640,000 cheaper than the cantilever style.