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Displaying results 81 of 100 - 256
Date Image Innovation City State Country Sort ascending
1846 Duck Creek Aqueduct Duck Creek Aqueduct Metamora IN USA
1929 Navajo Bridge Navajo Bridge Page AZ USA
1855 Whipple Truss Bridge Whipple Truss Bridge Schenectady NY USA
1835 Canton Viaduct Canton Viaduct Canton MA USA
1888 Sweetwater Dam Sweetwater Dam Chula Vista CA USA
1899 Snoqualmie Falls Cavity Generating Station Snoqualmie Falls Cavity Generating Station Snoqualmie WA USA
1913 Keokuk Hydro-Power System Keokuk Hydro-Power System Keokuk IA USA
1931 George Washington Bridge George Washington Bridge Fort Lee NJ USA
1940 Fort Peck Dam Fort Peck Dam Fort Peck MT USA
1801 Philadelphia Municipal Water Supply Philadelphia Municipal Water Supply Philadelphia PA USA
1864-1869 Chesbrough's Water Supply System Chesbrough's Water Supply System Chicago IL USA
1764 Choate Bridge Choate Bridge Ipswich MA USA
1877 High Bridge High Bridge Wilmore KY USA
1911 Theodore Roosevelt Dam Theodore Roosevelt Dam & Salt River Project Tonto National Forest AZ USA
1728-1821 Emanuel Bowen's 1747 map showing the boundary between Virginia and North Carolina. Royal Colonial Boundary of 1665 Middlesboro KY USA
1761 Bethlehem Waterworks Bethlehem Waterworks Bethlehem PA USA
1935-1937 Blue Ridge Parkway Blue Ridge Parkway Blue Ridge Mountains VA USA
1842 Croton Water Supply System Croton Water Supply System New York NY USA
1803 Middlesex Canal Middlesex Canal Billerica MA USA
1930 Tunnel Zion Mt. Carmel Tunnel and Highway Hurricane UT USA

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