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  2. Headwall - Wikipedia

    en.wikipedia.org/wiki/Headwall

    In civil engineering, a headwall is a small retaining wall placed at the inlet or outlet of a stormwater pipe or culvert. [2] In medicine, a headwall is the wall at the head end of a hospital bedspace. The bed abuts this headwall perpendicularly, which is furnished with equipment such as regulators for supplemental oxygen, regulators for ...

  3. St. Alban's Bay Culvert - Wikipedia

    en.wikipedia.org/wiki/St._Alban's_Bay_Culvert

    The St. Alban's Bay Culvert is functionally a concrete box culvert. However it has 40-foot-long (12 m) headwalls faced with random ashlar of local granite. This facing is about 9 inches (23 cm) thick, disguising a core of mortared lake boulders. The walls rise 2 feet 9 inches (84 cm) over the height of the roadbed to form a low railing.

  4. Culvert - Wikipedia

    en.wikipedia.org/wiki/Culvert

    Steel corrugated culvert with a drop on the exhaust end, northern Vermont. Culverts can be constructed of a variety of materials including cast-in-place or precast concrete (reinforced or non-reinforced), galvanized steel, aluminum, or plastic (typically high-density polyethylene). Two or more materials may be combined to form composite ...

  5. Chesapeake and Ohio Canal - Wikipedia

    en.wikipedia.org/wiki/Chesapeake_and_Ohio_Canal

    Unfortunately culverts are prone to collapse due to tree roots growing into the canal prism; in addition, rubbish from floods plug culverts, causing floods and more damage. [129] Some culverts have disappeared or were abandoned, although they still appear in company records. [130]

  6. Landscape architecture - Wikipedia

    en.wikipedia.org/wiki/Landscape_architecture

    Stourhead in Wiltshire, England, designed by Henry Hoare (1705–1785), "the first landscape gardener, who showed in a single work, genius of the highest order" [1]. Landscape architecture is the design of outdoor areas, landmarks, and structures to achieve environmental, social-behavioural, or aesthetic outcomes. [2]

  7. Wing wall - Wikipedia

    en.wikipedia.org/wiki/Wing_wall

    Wing walls can be classified according to their position in plan with respect to banks and abutments. The classification is as follows: Straight wing walls: used for small bridges, on drains with low banks and for railway bridges in cities (weep holes are provided). Splayed wing walls: used for bridges across rivers. They provide smooth entry ...

  8. Stoplogs - Wikipedia

    en.wikipedia.org/wiki/Stoplogs

    Stoplogs are specialized bulkheads that are dropped into premade slots or guides in a channel or control structure, while flashboards are bulkheads that are placed on the crest or top of a channel wall or control structure. Flashboards are sometimes designed to break away under high flow conditions and thus to provide only a temporary diversion.

  9. Center Road Culvert - Wikipedia

    en.wikipedia.org/wiki/Center_Road_Culvert

    The Center Road Culvert is a historic stone culvert on Center Road at Mallory Brook in East Montpelier, Vermont.It was built in 1899 as an early project after the establishment of the Vermont Highway Commission in 1898, and is a well-preserved example of dry-laid stone box culvert.