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  2. Manhole - Wikipedia

    en.wikipedia.org/wiki/Manhole

    PMG manholes in a city street, Perth, Western Australia Manhole being used to access sewer Installation of a fiber-optic manhole in Brooklyn, New York An uncovered manhole in Beirut, Lebanon. A manhole (utility hole, maintenance hole, [1] or sewer hole) is an opening to a confined space such as a shaft, utility vault, or large vessel.

  3. Sanitary manhole - Wikipedia

    en.wikipedia.org/wiki/Sanitary_manhole

    A sanitary manhole under construction. A sanitary manhole (sewer manhole, [1] sanitary sewer manhole [2] or sewer maintenance hole [3]) is a manhole that is used as an access point for maintenance and inspection of an underground sanitary sewer system. Sanitary manholes are sometimes used as vents to prevent the buildup of pressurized sewage ...

  4. Category:Manholes - Wikipedia

    en.wikipedia.org/wiki/Category:Manholes

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  5. Culvert - Wikipedia

    en.wikipedia.org/wiki/Culvert

    A culvert under the Vistula river levee and a street in Warsaw. Construction or installation at a culvert site generally results in disturbance of the site's soil, stream banks, or stream bed, and can result in the occurrence of unwanted problems such as scour holes or slumping of banks adjacent to the culvert structure.

  6. Sanitary sewer - Wikipedia

    en.wikipedia.org/wiki/Sanitary_sewer

    A manhole cover for a sanitary sewer access point. View looking down into an open manhole showing two converging sanitary sewer lines. The larger line enters from the right and changes direction within the manhole to exit from the top of the photo. A smaller line enters from the bottom of the photo under the access steps.

  7. Packaged metering manhole - Wikipedia

    en.wikipedia.org/wiki/Packaged_Metering_Manhole

    A H-20 highway loading packaged metering manhole during installation. Packaged metering manholes (PMMs) are an outgrowth of the fiberglass manholes developed in the 1960s. . Packaged metering manhole factories integrate a primary device (typically a flume [1] or weir [2]) into a fiberglass ma

  8. Hobas - Wikipedia

    en.wikipedia.org/wiki/Hobas

    HOBAS manufactures circular and non-circular (NC) pipes as well as fittings, tanks and manholes from GRP. These are utilized in various fields of application such as for example sewer and hydropower systems, potable water lines, irrigation and drainage, as protection and ventilation pipes.

  9. Manholes - Wikipedia

    en.wikipedia.org/?title=Manholes&redirect=no

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