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  2. 2008 Parkersburg–New Hartford tornado - Wikipedia

    en.wikipedia.org/wiki/2008_Parkersburg–New...

    Aplington-Parkersburg High School sustained EF4 structural damage, and reinforced concrete light poles near the school were snapped and dragged along the ground by the tornado, indicative of extremely intense low-level inflow winds. [2] As the tornado exited at the east side of town, the tornado struck a golf course and a newly built subdivision.

  3. List of F5, EF5, and IF5 tornadoes - Wikipedia

    en.wikipedia.org/wiki/List_of_F5,_EF5,_and_IF5...

    A rebar support set into the foundation of another home was found snapped in half and reinforced concrete light poles were snapped and dragged along the ground. A large industrial building was completely destroyed with metal beams twisted and sheared off at their bases and the foundation pushed clean of the metal framing and debris.

  4. Framing (construction) - Wikipedia

    en.wikipedia.org/wiki/Framing_(construction)

    Light-frame buildings in areas with shallow or nonexistent frost depths are often erected on monolithic concrete-slab foundations that serve both as a floor and as a support for the structure. Other light-frame buildings are built over a crawlspace or a basement , with wood or steel joists used to span between foundation walls, usually ...

  5. Star Axis - Wikipedia

    en.wikipedia.org/wiki/Star_Axis

    Looking north up the Star Tunnel; earth, sandstone, granite, concrete, bronze, stainless steel; 11 stories high, 0.1 mile wide; (1971–in progress). Star Axis is an earthwork built by American sculptor Charles Ross to observe the stars, which is considered to be a defining example of land art .

  6. Punta Gorda Light - Wikipedia

    en.wikipedia.org/wiki/Punta_Gorda_Light

    Punta Gorda originally consisted of 22 acres (89,000 m 2) upon which were situated three dwellings, a small two-story concrete lighthouse, concrete oil house, a wooden fog signal building, blacksmith/carpenter-shop, three storage sheds, and a barn. In 1951 all aids-to-navigation were discontinued, the buildings boarded up and personnel transferred.

  7. Caisson (engineering) - Wikipedia

    en.wikipedia.org/wiki/Caisson_(engineering)

    Schematic cross section of a pressurized caisson. In geotechnical engineering, a caisson (/ ˈ k eɪ s ən,-s ɒ n /; borrowed from French caisson 'box', from Italian cassone 'large box', an augmentative of cassa) is a watertight retaining structure [1] used, for example, to work on the foundations of a bridge pier, for the construction of a concrete dam, [2] or for the repair of ships.

  8. List of United States tornadoes from November to December 2017

    en.wikipedia.org/wiki/List_of_United_States...

    Numerous homes sustained exterior damage, including one that had the roof pulled from its carport and supports ripped from the concrete. A trailer was lofted atop a tractor. A small outbuilding collapsed, a mobile home had tin and siding peeled off, and a standalone garage port was shifted slightly off its foundation. [47] EF1 Plum to Murrysville

  9. Shallow foundation - Wikipedia

    en.wikipedia.org/wiki/Shallow_foundation

    A shallow foundation is a type of building foundation that transfers structural load to the Earth very near to the surface, rather than to a subsurface layer or a range of depths, as does a deep foundation. Customarily, a shallow foundation is considered as such when the width of the entire foundation is greater than its depth. [1]