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Druid Lake Dam
Society: ASCEMain Category: CivilSub Category: DamsEra: 1870-1879DateCreated: 1871Druid Hill ParkBaltimoreState: MDCountry: USAWebsite: http://www.asce.org/Project/Druid-Lake-Dam/Creator: Martin, Robert

Like other American cities in the late 19th century, Baltimore had grown so quickly its supply system was unable to provide city residents with a dependable supply of water. Two reservoirs built outside the city helped increase capacity, but heavy rainfalls in the largely agricultural area tended to foul this additional water supply. City officials elected to construct a holding reservoir within the city - contained by an earthen dam - where silty water would be allowed to settle. No such project had ever been undertaken in the United States.

YearAdded:
1971
Image Credit: Courtesy Flickr/Jeff Covey (CC BY-SA 2.0)Image Caption: Druid Lake DamEra_date_from: 1871
Society: ASMEMain Category: MechanicalSub Category: Research and DevelopmentEra: 1930-1939DateCreated: 1939Taylor Blvd
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BethesdaState: MDZip: 20817Country: USAWebsite: http://www.asme.org/about-asme/history/landmarks/topics-m-z/research-and-development/-197-david-taylor-model-basin-%281939%29Creator: Taylor, David
The David Taylor Model Basin is among the largest facilities of its kind in the world, containing a shallow water basin, a deep water basin and a high-speed basin. Using its sophisticated combination of towing carriages, wave makers, and measuring equipment, engineers are able to determine the sea-keeping qualities and propulsion characteristics of ship and craft models up to 40 feet in length. Since it became operational, the facility has provided key support in the development of naval architecture for the Navy, the Coast Guard, the Maritime Administration, and the maritime industry.
YearAdded:
1998
Image Credit: Public Domain (United States Navy)Image Caption: David Taylor Model BasinEra_date_from: 1939
Society: ASMEMain Category: MechanicalSub Category: Food ProcessingEra: 1890-1899DateCreated: 18928801 Citation RoadEssexState: MDZip: 21221Country: USAWebsite: http://www.asme.org/about-asme/history/landmarks/topics-a-l/food-processing/-174-crown-cork-and-soda-filling-machine-%281892%29Creator: Painter, William
Although bottled carbonated beverages were popular by the 1880s, sealing the bottle was a constant problem. Most "stoppers" were of metal and intended for reuse. None sealed adequately, and contact with the cap often contaminated the drink. In 1892 (Feb 2), William Painter (1838-1906) patented a cheap, single-use metallic cap, crimped over a lip formed on the bottle neck and lined with a thin cork wafer that both formed a leakproof seal and separated drink and metal.
YearAdded:
1994
Image Credit: Courtesy Wikipedia/KMJ (CC BY-SA 3.0)Image Caption: Crown Cork and Soda Filling MachineEra_date_from: 1892
Carrollton Viaduct
Society: ASCEMain Category: CivilSub Category: BridgesEra: 1800-1829DateCreated: 1829Gwynns FallsBaltimoreState: MDCountry: USAWebsite: http://www.asce.org/Project/Carrollton-Viaduct/Creator: Wever, Caspar , Lloyd, James

The Carrollton Viaduct over Gwynn's Falls was the first masonry railroad viaduct constructed in the United States. This structure proved the feasibility of using a viaduct to transport railway vehicles across wide and deep valleys.

YearAdded:
1982
Image Credit: Public Domain (National Park Service)Image Caption: Carrollton ViaductEra_date_from: 1829
Cabin John Aqueduct
Society: ASCEMain Category: CivilSub Category: Bridges, Transportation, Water Supply & ControlEra: 1860-1869DateCreated: 1864Cabin JohnState: MDCountry: USAWebsite: http://www.asce.org/Project/Cabin-John-Aqueduct/Creator: Meigs, Montgomery

Cabin John Aqueduct, designed by Montgomery C. Meigs, conveys drinking water from Great Falls, Maryland to Washington, D.C. It was the longest stone masonry arch in the world for nearly 40 years. The segmental arch of the bridge has a span of 220 feet and a rise of only 57 feet. The main arch ring is built of cut and dressed granite. The secondary arch ring is radially-laid sandstone, of which the rest of the bridge is also constructed. 

YearAdded:
1972
Image Credit: Public Domain (Author's Choice)Image Caption: Cabin John AqueductEra_date_from: 1864
Aberdeen Range, Aberdeen Proving Ground
Society: ASMEMain Category: MechanicalSub Category: Research and DevelopmentEra: 1940-1949DateCreated: 1943US Army Test & Evaluation Command - Ryan BuildingAberdeenState: MDCountry: USAWebsite: https://www.asme.org/about-asme/who-we-are/engineering-history/landmarks/80-aberdeen-range-aberdeen-proving-groundCreator: U.S. Army

During the 1930's, research into advanced ballistic measurement techniques began at Aberdeen Proving Ground—the world's first large-scale, fully-instrumented ballistic range producing data on the aerodynamic characteristics of missiles in free flight.

YearAdded:
1982
Image Credit: Courtesy U.S. Army RDECOMImage Caption: High Explosive shells at Aberdeen Proving GroundEra_date_from: 1943
Discovery of Camptothecin and Taxol
Society: ACSMain Category: ChemicalSub Category: MedicalEra: 1950sDateCreated: 1966Research Triangle InstituteRockvilleState: MDCountry: USAWebsite: https://www.acs.org/content/acs/en/education/whatischemistry/landmarks/camptothecintaxol.html, https://www.acs.org/content/dam/acsorg/education/whatischemistry/landmarks/camptothecintaxol/discovery-of-camptothecin-and-taxol-commemorative-booklet.pdfCreator: Wani, Mansukh, Wall, Monroe

Monroe Wall, Mansukh Wani and colleagues at the Natural Products Laboratory of the Research Triangle Institute discovered and elucidated the structure Taxol®and camptothecin, two life-saving compounds for the treatment of cancer. These natural products kill cancer cells via unique mechanisms of action and in ways scientists had not previously imagined. The work of this research team led to the eventual development and marketing of drugs that have been approved for treatment of ovarian, breast, lung, and colon cancer and Kaposi’s sarcoma.

YearAdded:
2003
Image Credit: Courtesy ACSImage Caption: Mansukh C. Wani
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