1 ► Alaska, Fairbanks North Star Borough, Goldstream — 83 — Gold Dredge No. 8 — Gold Stream Valley 1928 - 1959 — National Historic Mechancial Engineering Landmark —

Dredges were brought in to mine gold-bearing deposits in the Fairbanks mining district after 1920. This bucket-line or ladder dredge has 68 buckets, each with a capacity of 6 cubit feet. The bucket line was driven by a 150 horsepower motor that . . . — — Map (db m144242) HM

2 ► California, Alameda County, Newark — Wind-Powered Archimedes Screw-Pump — Reported missing

Regional Historic Mechanical Engineering Landmark Wind-Powered Archimedes Screw-Pump ca. 1890 Newark, California This late example of the wind-driven Archimedes screw-pump shifted brine from on salt concentrating pond to one . . . — — Map (db m71365) HM

3 ► California, Amador County, Sutter Creek — 1007 — Knight Foundry —

Knight Foundry was established in 1873 to supply heavy equipment and repair facilities to the gold mines and timber industry of the Mother Lode. Samuel N. Knight developed a high speed, cast iron water wheel which was a forerunner of the Pelton . . . — — Map (db m100590) HM

4 ► California, Los Angeles County, Angeles National Forest — The Mount Wilson 100 Inch Telescope — International Historic Mechanical Engineering Landmark — 1918 —

The increased light-grasp of this telescope made possible many notable advances in structural cosmology between 1924 and 1930. They have revised our ideas about the universe in which we live. One of these advances was that spiral nebulae are . . . — — Map (db m200931) HM

5 ► California, Los Angeles County, Carson — Square Base Linotype Machine — Historic Mechanical Engineering Landmark — 1890 —

Into the 1890s, newspapers relied upon skilled compositors to set type by hand, one character at a time, just as Gutenberg had done four centuries earlier. Starting in 1882, instrument maker Ottmar Mergenthaler (1854-1899) developed an . . . — — Map (db m248093) HM

6 ► California, Los Angeles County, Pasadena, North Arroyo — The Voyager Spacecraft - Interplanetary Explorers — International Historic Mechanical Engineering Landmark — 1977 —

Voyagers 1 and 2 were launched in 1977 to meet a solar-system alignment that occurs only once every 176 years. Both spacecraft sent back valuable pictures and information of Jupiter and Saturn and their satellites. Voyager 2 sailed on to explore . . . — — Map (db m189649) HM

7 ► California, Nevada County, Grass Valley — 843 — North Star Mine Powerhouse —

The North Star Powerhouse, built by A.D. Foote in 1895, was the first complete water powered compressed air transmission plant of its kind. Compressed air, generated by Pelton Water Wheels, furnished power for the entire mine operation. The 30 foot . . . — — Map (db m44348) HM

8 ► California, Orange County, Anaheim — Disneyland Monorail System — Historic Mechanical Engineering Landmark — 1959 —

Disney engineers designed this monorail system, based on the system developed by Axel L. Wenner-Gren (ALWEG). Built at the Walt Disney Studios, the system is intended to apply to urban transit. Opened in 1959, it has been in daily passenger . . . — — Map (db m155278) HM

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9 ► California, San Francisco City and County, San Francisco, Nob Hill — San Francisco Cable Car System — Ferries & Cliff House Railway Company — Cable Car Museum —

California Historic Civil Engineering Landmark. San Francisco Cable Car System - 1873. San Francisco Section ASCE - 1976. National Historic Mechanical Engineering Landmark. Ferries & Cliff House Cable Railway - 1887. . . . — — Map (db m259555) HM

10 ► California, Santa Clara County, San Jose, Downtown San Jose — International Business Machines : RAMAC —

[ Main Marker: ] International Business Machines : RAMAC In 1952, IBM sent Reynold Johnson to San José to open its first West Coast development laboratory to research new data storage methods. At this site in 1955, IBM unveiled . . . — — Map (db m30095) HM

11 ► California, Santa Clara County, Sunnyvale, Heritage District — Joshua Hendy Iron Works — National Historic Mechanical Engineering Landmark —

From 1906 until 1946 this was the Joshua Hendy Iron Works. The works exemplifies the adaptability required for survival in a dynamic technological society. It was a major western producer of meghanical equipment used in mining, ship propulsion, . . . — — Map (db m154957) HM

12 ► California, Santa Cruz County, Felton — Heisler/Shay/Climax Locomotives — National Historic Mechanical Engineering Landmark — Felton, California —

Heisler Locomotive, built by Stearns Manufacturing Company, 1899. Shay Locomotive, built by Lima Locomotive Works, 1912. Climax Locomotive, built by Climax Manufacturing Company, 1928. The Shay locomotive, patented in 1881, and its two . . . — — Map (db m190694) HM

13 ► Delaware, New Castle County, Wilmington, Hagley Museum — Brandywine River Powder Mills — 1803 - 1921 — Historic Mechanical Engineering Landmark —

Founded by E.I. du Pont, the Brandywine Mills became the largest maker of explosive black powder in the United States. That success resulted directly from the firm's pioneering use of gunpowder processing machinery driven by water wheels and . . . — — Map (db m231885) HM

14 ► Florida, Duval County, Jacksonville, Urban Core — United States Railroad Administration Locomotive — Historic Mechanical Engineering Landmark —

United States Railroad Administration Locomotive Atlantic Coast Line Class P-5-A 4-6-2 No. 1504 1919 During the World-War I emergency, American Railroads were placed under the control of the United States Railroad Administration (USRA) . . . — — Map (db m152610) HM

15 ► Florida, Duval County, Jacksonville, Urban Core — #148 — United States Railroad Administration Locomotive — Reported missing

National Historic Mechanical Engineering Landmark United States Railroad Administration Locomotive Atlantic Coast Line Class P-5a 4-6-2 No. 1504   1919 During the World-War I emergency, American railroads were placed under the control . . . — — Map (db m59100) HM

16 ► Idaho, Butte County, Arco — EBR-I —

EBR-I World’s first Nuclear Power plant — — Map (db m103900) HM

17 ► Indiana, LaPorte County, La Porte — Meinrad Rumely — Historic Landmark of Agricultural Engineering — Rumely OilPull Tractor —

Meinrad Rumely Meinrad Rumely was the founder and guiding spirit of the Rumely Companies for more than 50 years. He came to America from Germany in 1848, and in 1853 on this site opened a blacksmith shop that was to grow into a large . . . — — Map (db m43463) HM

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18 ► Maryland, Worcester County, Snow Hill — Nassawango Iron Furnace — circa 1828 - 1850 — National Historic Mechanical Engineering Landmark —

Nassawango is structurally typical of its period while distinctive in several ways: it smelted bog ore; it is principally of brick rather than stone; and of greatest significance, it probably is the earliest surviving American furnace that employed . . . — — Map (db m42635) HM

19 ► Maryland, Worcester County, Snow Hill — Nassawango Iron Furnace —

The only furnace in Maryland ever to make extensive use of bog ore, this structure is the oldest surviving hot blast furnace in the United States. erected in 1829-1830 by the Maryland Iron Company, it was in use until 1847. About 700 tons of iron . . . — — Map (db m286630) HM

20 ► Massachusetts, Hampden County, Springfield, Metro Center — Springfield Armory — National Historic Mechanical Engineering Landmark —

The Springfield Armory (1794 — 1968) was the first National Armory in the United States. It was an outstanding, innovative center for the design and production of military small arms. Among its notable achievements are the Blanchard Lathe . . . — — Map (db m110888) HM

21 ► Mississippi, Warren County, Vicksburg — U.S.S. Cairo — Engine and Boilers, 1862 — National Historic Mechanical Engineering Landmark —

The Cairo is the sole survivor of the fleet of river gunboats built by the Union during the Civil War with the object of controlling the lower Mississippi River. Designed by Samuel Pook and built by James B. Eads, the 175-foot ironclad . . . — — Map (db m35953) HM

22 ► Mississippi, Warren County, Vicksburg National Military Park — U.S.S. Cairo Engine and Boilers — National Historic Mechanical Engineering Landmark — 1862 —

The Cairo is the sole survivor of the fleet of river gunboats built by the Union during the Civil War with the object of controlling the lower Mississippi River. Designed by Samuel Pook and built by James B. Eads, the 175-foot ironclad vessel . . . — — Map (db m109469) HM

23 ► Missouri, Clay County, Kearney — Watkins Mill — Clay County Historical Society Historic Landmark —

This farm established by Walthus L. Watkins, centered around his woolen factory built 1860-1861. It operated for 40 years with mass production machines. This farm (Bethany) also boasted a grist mill, flour mill and saw mill, church and octagonal . . . — — Map (db m46134) HM

24 ► New Jersey, Passaic County, Paterson — Great Falls Raceway and Power System — National Historic Civil and Mechanical Engineering Landmark —

Alexander Hamilton, with great vision, prompted the incorporation of the "society for establishing usefull [sic] manufactures" in 1791 to start America's economic and industrial independence. Pierre Charles L'Enfant, engineer and planner of the . . . — — Map (db m64189) HM

25 ► New Jersey, Passaic County, Ringwood — Ringwood Manor Iron Complex — National Historical Mechanical Engineering Landmark —

Ringwood Manor Iron Complex (1740-1931) was an important element in the early development of the iron industry in the United States. Among its leaders were the Ogdens, Peter Hasenclever, Robert Erskine – F.R.S., Martin Ryerson, Peter Cooper, . . . — — Map (db m40551) HM

26 ► New York, New York County, Manhattan, Hudson Square — Holland Tunnel — National Historic Civil And Mechanical Engineering Landmark — Constructed 1920-1927 —

The first long mechanically ventilated underwater tunnel in the world designed for motor vehicle use The 29.5 ft. diameter 3,500 ft. long twin tubes of this tunnel were shield driven by the pneumatic method through extremely difficult river . . . — — Map (db m237290) HM

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27 ► North Carolina, Rowan County, Spencer — Spencer Shops Roundhouse and Turntable — Historic Mechanical Engineering Landmark — 1924 —

This 37-stall roundhouse and 100-foot turntable built by the Southern Railway are among the few survivors of a distinctive type of locomotive repair facility that was once common across North America. The radial track and turntable arrangement was . . . — — Map (db m104588) HM

28 ► Pennsylvania, Cambria County, Westmont — Johnstown Incline — 1891 — Regional Historic Mechanical Engineering Landmark —

This is one of several, similar inclines built in western Pennsylvania during the late nineteenth century. It was designed by Samuel Diescher (1839-1915) after the great flood of 1889, to provide an efficient means of transportation between . . . — — Map (db m76884) HM

29 ► Pennsylvania, Philadelphia County, Philadelphia, Fairmount Park — Fairmount Water Works — 1815 - 1911 — National Historic Mechanical Engineering Landmark —

This station was powered at different periods by steam water wheels and water turbines — — Map (db m192675) HM

30 ► Rhode Island, Providence County, Pawtucket — 30 — Wilkinson Mill — 1810 — National Historic Mechanical Engineering Landmark —

Site of the shop of David Wilkinson (1771–1852). Father of the American machine tool industry. — — Map (db m1611) HM

31 ► Tennessee, Hamilton County, Chattanooga, St. Elmo Improvement League — Lookout Mountain Incline — 1895 — National Historic Mechanical Engineering Landmark —

The Incline, 4,972 feet long and rising 1,450 feet, is superbly designed to suit its location. It makes use of a variable grade, ranging up to 72.7 percent near the top, to compensate for the changing weight of the cables as its cars move. One . . . — — Map (db m297524) HM

32 ► Texas, Harris County, Houston, Clear Lake City — Saturn V Rocket —

National Historic Mechanical Engineering Landmark Saturn V Rocket 1967-1973 The largest rocket built at the time of the historic first missions to the Moon, the Saturn V carried aloft the 45-ton Apollo spacecraft on Earth orbital and lunar . . . — — Map (db m163135) HM

33 ► Texas, Harris County, La Porte — U.S.S. Texas — National Historic Mechanical Engineering Landmark —

Last steam engine-driven battleship Four cylinder triple expansion steam engines Largest afloat (27,000 h.p.) at commissioning (1914) Newport News Shipbuilding & Drydock Co. U.S. Navy Bureau of Ships The American Society of Mechanical . . . — — Map (db m36228) HM

34 ► Texas, Washington County, Burton — NL109 — Burton Farmers Gin 1914 — National Mechanical Engineering Landmark —

This is the earliest known survivor of an integrated cotton ginning system widely used to process cotton from wagon to bale in a continuous operation. The gin machinery was designed and built in 1914 by the Lummus Cotton Gin Company and can . . . — — Map (db m111947) HM

35 ► Vermont, Windsor County, Windsor — International Mechanical Engineering Heritage Collection —

The American Precision Museum Windsor, Vermont The museum contains the largest collection of historically significant machine tools in the nation, tracing their evolutionary development from the earliest period. Metal-cutting machine tools bring . . . — — Map (db m180355) HM

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36 ► Vermont, Windsor County, Windsor — Robbins and Lawrence Armory and Machine Shop — 1848 Windsor, Vermont — International Mechanical Engineering Heritage Site —

Where interchangeable manufacturing became a reality In fulfilling a contract for 25,000 U.S. Army rifles (Model 1841) and a like quantity for the British government, Robbins & Lawrence was the first to achieve interchangeability of parts on a . . . — — Map (db m180352) HM

37 ► Wisconsin, Milwaukee County, Milwaukee, East Town — Automatic Temperature Control System — 1895 — Historic Mechanical Engineering Landmark —

Warren S. Johnson (1847-1911) built and patented the first multi-zone temperature control system that could be economically manufactured, installed and maintained. The Johnson Controls pneumatic temperature control system, represented by artifacts . . . — — Map (db m38669) HM

38 ► Wisconsin, Milwaukee County, Milwaukee, East Town — Oneida Street Power Plant — National Historic Mechanical Engineering Landmark —

This facility, formerly known as the Oneida Street Power Plant, served from 1918-1920 as the pilot plant in the United States for the development and use of finely-pulverized-coal firing in the boilers of steam-electric power plants. The results of . . . — — Map (db m93662) HM

39 ► Wisconsin, Milwaukee County, Milwaukee, East Town — 57 — Oneida Street Station — T.M.E.R. & L. Co. — (Now Wisconsin Electric Power Co.) —

In this station pulverized coal was first successfully burned continuously and at high efficiencies in furnaces of stationary steam boilers November 11-15, 1919. This radical departure from conventional firing methods of the period was vigorously . . . — — Map (db m80527) HM

40 ► Wisconsin, Milwaukee County, Milwaukee, Northpoint — Milwaukee River Flushing Pump — 1888 — National Historic Mechanical Engineering Landmark —

This pump, designed by Edwin Reynolds (1831-1909) and built by the Edward P. Allis Company, is the major component of one of the earliest water-pollution control systems. It was capable of pumping more than a half billion gallons of water a day, the . . . — — Map (db m56904) HM

41 ► Wisconsin, Outagamie County, Appleton — First Edison Hydroelectric System in America —

On this site November 25, 1882 the Appleton Edison Light Co. began operating the first Edison Hydroelectric System in America. Plaque donated to Outagamie County Historical Society by the family of Harold F. Parish November, 1979 — — Map (db m20865) HM

42 ► Wisconsin, Ozaukee County, Port Washington — Port Washington Power Plant — National Historic Mechanical Engineering Landmark —

The Port Washington Power Plant of the Wisconsin Electric Power Company was the most thermally-efficient steam power plant in the world for many years following its opening in 1935. Its design reflected the cumulative experience of the utility's . . . — — Map (db m129369) HM

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