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  2. Culvert - Wikipedia

    en.wikipedia.org/wiki/Culvert

    Culvert with secure headwall in Bromsgrove, England Stone culvert in Haapsalu, Estonia Steel culvert with a plunge pool below A multiple culvert assembly in Italy Precast concrete box culvert Large box culvert on Rio Monterroso. A culvert is a structure that channels water past

  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.

  4. Lincoln Highway in Greene County, Iowa - Wikipedia

    en.wikipedia.org/wiki/Lincoln_Highway_in_Greene...

    The old roadway is no longer used for any purpose, and the grade and cut banks are covered with mowed grass. A partially buried concrete headwall of a driveway culvert is located at the top of the incline. Its design and materials are consistent with other culverts along the old highway.

  5. Headwall - Wikipedia

    en.wikipedia.org/wiki/Headwall

    Headwall and corrie lake Cwm Idwal. In physical geography and geology, the headwall of a glacial cirque is its highest cliff.The term has been more broadly used to describe similar geomorphic features of non-glacial origin consisting of a concave depression with convergent slopes typically of 65 percent or greater forming the upper end of a drainage valley.

  6. Low-water crossing - Wikipedia

    en.wikipedia.org/wiki/Low-water_crossing

    It consists of an improved surface of gravel, gravel-filled geotextile grid, paving blocks, or concrete slabs positioned to match the slope and elevation of the adjacent waterway and floodplain. To cross somewhat deeper waterways, a type of low water crossing called a vented ford can be constructed with culverts. The size of the culverts (often ...

  7. Sweethope Loughs - Wikipedia

    en.wikipedia.org/wiki/Sweethope_loughs

    At the west end of Sweethope Loughs is the first bridge, actually a culvert, on the River Wansbeck and crossed by the minor road going west from Knowesgate to the A68 road. It was constructed in 1972 and is a concrete pipe with masonry headwalls and crosses the narrow river only a few feet wide.

  8. Drop structure - Wikipedia

    en.wikipedia.org/wiki/Drop_structure

    The vertical hard basin drop structure, also called a dissipation wall, is the basic type of drop structure.The vertical hard basin drop consists of a vertical cutoff wall, usually built of concrete, that is usually laid perpendicular to the stream flow, and an impact basin, not unlike a stream pool, to catch the discharged water.

  9. Trench drain - Wikipedia

    en.wikipedia.org/wiki/Trench_drain

    Concrete will need to be poured to surround the trench drain so that the load can be transferred from the channel and grate to the surrounding areas. Pre-cast trench drains generally come in 4-inch (100 mm) widths but can range anywhere from a 1.75-inch (44 mm) slot to 2-inch (51 mm) wide channels with grates, and up to any size imaginable ...

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