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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

   Grade adjustment rings can also be used on top of a cone section instead of the chimney section to adjust the frame to the required level. [20] The cover section is the top most section of sanitary manholes. It consists of a frame and a manhole cover. [16] The covers are designed to withstand the loads of the traffic on top of the manholes.

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. Answer Woman: Who makes the manhole covers with river ...

   www.aol.com/answer-woman-makes-manhole-covers...

   A reader asks for details about the Metropolitan Sewerage District's designed manhole covers. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways ...

6. Manhole covers disappearing, police looking for 4 large turtles!

   www.aol.com/news/2008-06-30-manhole-covers...

   For premium support please call: 800-290-4726 more ways to reach us

7. List of pipeline accidents in the United States (1900–1949)

   en.wikipedia.org/wiki/List_of_pipeline_accidents...

   December 1 – In Winchester, Massachusetts, a lighted match dropped into a sewer manhole by an employee of the Arlington gaslight company set off an explosion which injured five gas line repairmen and blew the steel manhole cover 30 feet into the air. The gas ignited along the sewer line into Rangeley, where two more manhole covers were blown ...

8. Uniform Plumbing Code - Wikipedia

   en.wikipedia.org/wiki/Uniform_Plumbing_Code

   This Order was divided into 69 Sections and Sections 4, 5, and 6 cover Privy Vaults. All three sections contain construction standards for privy vaults. Section 4 requires that privy be connected to the sewer by pipes made of "cement, iron-stone or iron" (ironstone, also known as Ironstone china is ceramic material similar to terra cotta and ...

9. The 3 Most Overpriced Cities in America, According to Gen Z ...

   www.aol.com/3-most-overpriced-cities-america...

   Affordability is becoming a growing challenge for younger generations. Although they're often drawn to vibrant cities for their career opportunities and lifestyle perks, high housing costs make ...