1982

Designated A Historic Landmark Of Agricultural Engineering The Massey-Harris No. 20 was the First Commercially- Successful Self-Propelled Combine Used to Harvest Small Grains Under a Wide Variety of Conditions, World-Wide. Engineered By Thomas Carroll, Chief Engineer, Aided by Robert Ashton and Albert Luke, Principal Assistants, it was First Marketed in 1938 by the Massey-Harris Company. This Combine Opened a New Era an Farm Mechanization and Revolutionized the Grain Harvesting Process. Forty-Four Years Later, This Same Harvesting Principle Continues to be Used Throughout the World.

The Sidehill Combine Developed By The Holt Brothers At Stockton, California In 1891, A Significant Milestone In Grain Harvesting And Agricultural Efficiency That Opened New Land For Wheat Farming, Is Designated A Historic Landmark Of Agricultural Engineering By The American Society Of Agricultural Engineers 1982

American Society of Agricultural Engineers Founded in this Building December 27, 1907

"Eads had to succeed in the face of conventional wisdom which doomed him to disaster. Entrenched authorities not only completely dismissed his theories, but pointed to the indifferent European experiences with what he proposed."  
 - ASCE Landmark Nomination Proposal, 1982   

Smaller and cheaper than a triple-expansion vertical engine, the horizontal cross-compound pumping engine, Pump No. 2, ran at relatively slow revolutions and was considered the height of engineering from the 1890s to World War I. This pumping engine at the York Water Company was built by the Worthington Pump & Machinery Corporation, Snow-Holly Works, Buffalo, New York.

The Watertown Arsenal was the first major engineering testing laboratory in America. It was created to store and manufacture cutting-edge military technology and weaponry. The United States Army Research and Materials Laboratory continued to use the site until 1989, employing soldiers and civilians to produce and test artillery.

The Turbinia was the world's first turbine-driven ship. It attracted worldwide attention at the 1897 Spithead Naval Review by traveling more than 34 knots. This remarkable performance accelerated the acceptance of the steam turbine as an alternative to the steam reciprocating engine on ships as well as for central electric light and power stations. Sir Charles A. Parsons (1854-1931) invented (1884), developed, and promoted the steam turbine, as well as the design of the Turbinia. For this, he is considered among the outstanding technological innovators of all time.

The Second Street Bridge is a simply ornamented, wrought-iron structure. It is 18 feet wide and spans 225 feet over the Kalamazoo River. It was built to replace a dilapidated wooden bridge that had served the area for nearly 50 years.

The bridge is anchored to fieldstone abutments on each shore, and the deck is composed of wood beams. Iron lattice work provides structural stability and iron finials on the end posts provide aesthetic appeal. It includes a wooden pedestrian walkway.

The Rogue River Bridge was the most advanced concrete bridge in America when it was built. Distinguished bridge engineer Conde McCullough employed the techniques of Frenchman Eugene Freyssinet to create thin, graceful concrete arches for this seven-span structure.

Pre-compression of the concrete arch was achieved and, as a result of its success, pre-stressing became one of the hallmarks of American bridge building techniques.