• Bayonne Bridge

    Owner / Operator: The Port Authority of New York and New Jersey.

    Finished in 1931, this steel arch bridge, designed principally by Othmar Ammann, Hon. M.ASCE, was the greatest span (1675 feet) of its type in the world and remained so until the New River Gorge Bridge at West Virginia exceed it by 25 feet in 1977. It was the first major bridge to use manganese steel for its main structural members. Its innovative system of falsework, developed to preclude the need for heavy anchorages, was an outstanding success. Nominated by the Metropolitan and New Jersey Sections. Designated in 1985.

  • Fink Through Truss Bridge

    Possibly the oldest metal truss bridge in the nation (1858), this bridge was constructed of cast and wrought iron and demonstrated a major breakthrough in patented railroad bridge design and construction. Unfortunately, this bridge was destroyed by a car collision in 1978. Nominated by the Virginia Section. Designated 1979.

  • Great Falls Raceway and Power System

    The basis of the oldest (circa 1800) extant American integrated water power, industrial development and urban planning system. The Great Falls Raceway and Power System was jointly designated in 1977 as an Historic Engineering Landmark with the American Society of Mechanical Engineers.

  • Hydraulic-Powered Inclined Plane System of the Morris Canal

    This system was the key civil engineering feature which permitted the successful completion of the Morris Canal project in 1831. The bold concept of using water turbine power to supply the energy necessary to lift canal boats over the 914-foot topographic barrier was a technical feat conceived by engineering consultant Professor James Renwick, which enhanced American engineering prestige worldwide. Designated 1980.

  • Newark Airport (Newark Liberty International Airport)
    Current Operator: Port Authority of New York and New Jersey

    This pioneer major airport was opened on October 1, 1928. It's 1,600-foot runway was one of the first hard surfaced runways to be constructed at any municipal airport in the United States and, as such, it served as a prototype for today's modern airport runways. Designated in 1978.

  • Northampton Street Bridge

    Current Owner/Operator: Delaware River Joint Toll Bridge Commission

    Completed in 1986, the Northampton Street Bridge is the only existing through-type cantilever eyebar bridge in the US serving solely highway traffic. Its graceful lines were a prototype for aesthetic appeal in bridge design. Nominated by the Lehigh Valley and New Jersey Sections of ASCE. Designated in 1995.

  • Cranetown Triangulation Site

    From Field work begun in 1816, this triangulation point was established in 1817 as an essential part of the first precise geodetic survey in the United States. The present Coast and Geodetic Survey, at the request of the History and Heritage Committee, relocated this point, which is monument to the skill and fortitude of early American civil engineer surveyors, especially Ferdinand Hassler. Designated in 1986.

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