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2. Manhole cover - Wikipedia

   en.wikipedia.org/wiki/Manhole_cover

   A round manhole and its cover. A manhole cover is a removable plate forming the lid over the opening of a manhole, an opening large enough for a person to pass through that is used as an access point for an underground vault or pipe. It is designed to prevent anyone or anything from falling in, and to keep out unauthorized persons and material.

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. Manhole - Wikipedia

   en.wikipedia.org/wiki/Manhole

   Manhole covers in Helsinki, Finland. Manhole closings are protected by a grating or manhole cover, a flat plug designed to prevent accidental or unauthorized access to the manhole. These covers are traditionally made of metal, [2] but may be constructed from precast concrete, glass reinforced plastic or other composite materials (especially ...

5. Five times a manhole cover stopped F1 in its tracks

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6. Packaged metering manhole - Wikipedia

   en.wikipedia.org/wiki/Packaged_Metering_Manhole

   Larger primary devices (and transitions) that do not readily fit into a standard 4 ft (1.2 m) precast manhole barrel, either a larger barrel or a concrete vault must be used which adds cost. Packaged metering manholes, on the other hand, can integrate primary devices that are larger than the manhole barrel – with any portion that doesn't fit ...

7. AOL

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   The search engine that helps you find exactly what you're looking for. Find the most relevant information, video, images, and answers from all across the Web.

8. File:Whitechapel, Fatberg memorial manhole cover.jpg

   en.wikipedia.org/wiki/File:Whitechapel,_Fatberg...

   English: Whitechapel, Fatberg memorial manhole cover. Outside Whitechapel Station by the crossing, where the pedestrianised Court Street meets Whitechapel Road. Discovered in 2017, it weighed 130 tonne. A fragment went on show at Museum of London.

9. Man tumbles 20 feet down manhole and gets stuck for an hour ...

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