Engineering Innovations

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"Old Red" Cotton Picker

Washington, DC

The first commercial spindle cotton picker, "Old Red" picked 8,000 bales in California.
A.B. Wood Screw Pump

New Orleans, LA

One of the US's oldest surviving examples of the wind-driven Archimedes screw-pump.
AC Electrification of the New York, New Haven & Hartford Railroad (DUPE: IEEE+ASME)

Cos Cob, CT

The AC electrification program of New Haven was the first major electrification of a steam railroad. It allowed for New Haven to become the first railroad in the US to use...
Acequias of San Antonio

San Antonio, TX

This is one of the earliest uses of engineered water supply and irrigation systems in the US. The first of 8 original acequias was under construction in 1718 and 2 are still in...
Acquedotto Traiano-Paolo

Rome, RI

Built over 2,000 years ago, this 25 mile long aqueduct continues to supply water to the fountains of Rome.
Acueducto de Queretaro

Santiago de Querétaro, Querétaro

Queretaro's aqueduct, in Central Mexico, is one of the most eloquent symbols of colonial Mexico. As one of the early major hydraulic engineering projects in North America, it...
Acueducto de Segovia

Segovia, SEG

One of the best preserved Roman constructions, the Segovia Aqueduct was still in use as recently as 50 years ago. Constructed around 50 AD during the reign of Emperor Trajan, out...
Adams Hydroelectric Generating Plant

Niagara Falls, NY

The Adams Hydroelectric Generating Plant, built 1895, was the first large-scale, AC (Alternating Current) electricity-generating plant in the world.
Advanced Engine Test Facility at Marshall Space Center

Huntsville, AL

Unique cooling system for the testing of aerospace engines.
Alaska Highway

Delta Junction, AK

Built in 1942, the highway was a significant feat of critical engineering and construction. Besides being completed much sooner than expected, the Alaska Highway was the largest...
ALCOA 50,000-ton Hydraulic Forging Press

Cleveland, OH

This 50,000-ton die-forging press is among the largest fabrication tools in the world, and is dominant in aircraft/aerospace development.
Alden Research Laboratory Rotating Boom

Holden, MA

Early 20th-century test facility for current meters, aircraft propellers, ships' logs, pitot tubes, and mine-sweeping paravanes.
Alexanderson Radio Alternator

Schenectady, NY

The Alexanderson Radio Alternator was one of the very first instruments able to generate continuous radio waves, which was necessary for the transmission of sound by radio.
Allegheny Portage Railroad

Duncansville, PA

This thirty-six mile project included the first railroad tunnel in the United States, ten double-track inclined planes and four viaducts. In 1844, John A. Roebling replaced the...
Alligator Amphibian

Quantico, VA

Prototype of all tracked ship-to-shore landing vehicles. Located at the Marine Corps Air-Ground Museum
Alouette-ISIS Satellite Program

Ottawa, Ontario

Alouette 1 was the first satellite program contructed by a country other than the United States and Soviet Russia.
Alternating Current Electrification (DUPE: IEEE+ASME)

Great Barrington, MA

On March 20,1886, William Stanley demonstrated the first practical system for providing electric illumination with the use of alternating current, and transformers to adjust the...
Alvord Lake Bridge

San Francisco, CA

Built in 1889 by Ernest L. Ransome, this bridge, located in San Francisco's Golden Gate Park, is the oldest (and first to be constructed in the United States) concrete arch...
American Precision Museum

Windsor, VT

Site of first machine shop to achieve interchangeable manufacture on a practical scale.
Ames Hydroelectric Generating Plant

Ophir, CO

The Ames Hydroelectric Generating Plant was the very first commercial system that allowed for the production and transmittion of Alternating Current electricity.