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- Alvord_Lake_Bridge abstract "The Alvord Lake Bridge was the first reinforced concrete bridge built in America. It was built in 1889 by Ernest L. Ransome, an innovator in reinforced concrete design, mixing equipment, and construction systems. The bridge was constructed as a single arch 64 feet (20 m) wide with a 20-foot (6.1 m) span.Ransome is believed to have used his patented cold-twisted square steel bar for reinforcement, placed longitudinally in the arch and curved in the same arc. The face of the bridge was scored and hammered to resemble sandstone, the interior features concrete \"stalactites\" (some of which have subsequently grown due to redeposition of limestone from the concrete).E.L. Ransome left San Francisco a few years later, frustrated and bitter at the building community's indifference to concrete construction. Ironically, the city's few reinforced concrete structures, including the Alvord Lake Bridge, survived the 1906 earthquake and fire in remarkable shape, vindicating Ransome's faith in the method.The Alvord Lake Bridge, which arches over a pedestrian entrance to San Francisco's Golden Gate park, was designated a civil engineering landmark by the American Society of Civil Engineers in 1969.".
- Alvord_Lake_Bridge architect Ernest_L._Ransome.
- Alvord_Lake_Bridge constructionMaterial Reinforced_concrete.
- Alvord_Lake_Bridge mainspan "6.096".
- Alvord_Lake_Bridge numberOfSpans "1".
- Alvord_Lake_Bridge openingYear "1889".
- Alvord_Lake_Bridge thumbnail HAER-Alvord_Lake.jpg?width=300.
- Alvord_Lake_Bridge width "19.5072".
- Alvord_Lake_Bridge wikiPageID "3222112".
- Alvord_Lake_Bridge wikiPageLength "3524".
- Alvord_Lake_Bridge wikiPageOutDegree "11".
- Alvord_Lake_Bridge wikiPageRevisionID "675367422".
- Alvord_Lake_Bridge wikiPageWikiLink 1906_San_Francisco_earthquake.
- Alvord_Lake_Bridge wikiPageWikiLink American_Society_of_Civil_Engineers.
- Alvord_Lake_Bridge wikiPageWikiLink Category:Bridges_completed_in_1889.
- Alvord_Lake_Bridge wikiPageWikiLink Category:Bridges_in_San_Francisco,_California.
- Alvord_Lake_Bridge wikiPageWikiLink Category:Bridges_in_the_San_Francisco_Bay_Area.
- Alvord_Lake_Bridge wikiPageWikiLink Category:Golden_Gate_Park.
- Alvord_Lake_Bridge wikiPageWikiLink Category:Historic_Civil_Engineering_Landmarks.
- Alvord_Lake_Bridge wikiPageWikiLink Category:Road_bridges_in_California.
- Alvord_Lake_Bridge wikiPageWikiLink Ernest_L._Ransome.
- Alvord_Lake_Bridge wikiPageWikiLink Golden_Gate_Park.
- Alvord_Lake_Bridge wikiPageWikiLink Reinforced_concrete.
- Alvord_Lake_Bridge wikiPageWikiLinkText "Alvord Lake Bridge".
- Alvord_Lake_Bridge bridgeName "Alvord Lake Bridge".
- Alvord_Lake_Bridge caption "A view of the Alvord Lake Bridge looking toward the east".
- Alvord_Lake_Bridge crosses "Pedestrian entrance to San Francisco's Golden Gate park".
- Alvord_Lake_Bridge designer "Ernest L. Ransome".
- Alvord_Lake_Bridge heritage "American Society of Civil Engineers civil engineering landmark".
- Alvord_Lake_Bridge imageSize "250".
- Alvord_Lake_Bridge locale "San Francisco".
- Alvord_Lake_Bridge mainspan "20.0".
- Alvord_Lake_Bridge material "Reinforced concrete".
- Alvord_Lake_Bridge officialName "Alvord Lake Bridge".
- Alvord_Lake_Bridge open "1889".
- Alvord_Lake_Bridge spans "1".
- Alvord_Lake_Bridge width "64.0".
- Alvord_Lake_Bridge wikiPageUsesTemplate Template:California-bridge-struct-stub.
- Alvord_Lake_Bridge wikiPageUsesTemplate Template:Convert.
- Alvord_Lake_Bridge wikiPageUsesTemplate Template:Coord.
- Alvord_Lake_Bridge wikiPageUsesTemplate Template:Infobox_bridge.
- Alvord_Lake_Bridge wikiPageUsesTemplate Template:Reflist.
- Alvord_Lake_Bridge wikiPageUsesTemplate Template:SanFrancisco-struct-stub.
- Alvord_Lake_Bridge subject Category:Bridges_completed_in_1889.
- Alvord_Lake_Bridge subject Category:Bridges_in_San_Francisco,_California.
- Alvord_Lake_Bridge subject Category:Bridges_in_the_San_Francisco_Bay_Area.
- Alvord_Lake_Bridge subject Category:Golden_Gate_Park.
- Alvord_Lake_Bridge subject Category:Historic_Civil_Engineering_Landmarks.
- Alvord_Lake_Bridge subject Category:Road_bridges_in_California.
- Alvord_Lake_Bridge hypernym Bridge.
- Alvord_Lake_Bridge point "37.769 -122.4549".
- Alvord_Lake_Bridge type ArchitecturalStructure.
- Alvord_Lake_Bridge type Bridge.
- Alvord_Lake_Bridge type Infrastructure.
- Alvord_Lake_Bridge type Park.
- Alvord_Lake_Bridge type Place.
- Alvord_Lake_Bridge type RouteOfTransportation.
- Alvord_Lake_Bridge type Park.
- Alvord_Lake_Bridge type Location.
- Alvord_Lake_Bridge type Place.
- Alvord_Lake_Bridge type Thing.
- Alvord_Lake_Bridge type SpatialThing.
- Alvord_Lake_Bridge type Q12280.
- Alvord_Lake_Bridge comment "The Alvord Lake Bridge was the first reinforced concrete bridge built in America. It was built in 1889 by Ernest L. Ransome, an innovator in reinforced concrete design, mixing equipment, and construction systems. The bridge was constructed as a single arch 64 feet (20 m) wide with a 20-foot (6.1 m) span.Ransome is believed to have used his patented cold-twisted square steel bar for reinforcement, placed longitudinally in the arch and curved in the same arc.".
- Alvord_Lake_Bridge label "Alvord Lake Bridge".
- Alvord_Lake_Bridge sameAs Q4738344.
- Alvord_Lake_Bridge sameAs m.08_ctv.
- Alvord_Lake_Bridge sameAs Q4738344.
- Alvord_Lake_Bridge lat "37.769".
- Alvord_Lake_Bridge long "-122.4549".
- Alvord_Lake_Bridge wasDerivedFrom Alvord_Lake_Bridge?oldid=675367422.
- Alvord_Lake_Bridge depiction HAER-Alvord_Lake.jpg.
- Alvord_Lake_Bridge isPrimaryTopicOf Alvord_Lake_Bridge.
- Alvord_Lake_Bridge name "Alvord Lake Bridge".