Manhole covers are often made out of cast iron, concrete or a combination of the two. This makes them inexpensive, strong, and heavy, usually weighing more than 113 kilograms (249 lb) [citation needed]. The weight helps to keep them in place when traffic passes over them, and makes it difficult for unauthorized people without suitable tools to remove them.
The 700 x 700 manhole cover may seem like a minor element of urban infrastructure, but its impact is profound. It combines functionality, safety, and aesthetics, making it indispensable in city planning. As urban areas continue to expand, the importance of well-designed and maintained manhole covers will only grow, highlighting the need for thoughtful consideration of every element in the urban infrastructure system. Investing in quality manhole covers is not just about access; it is about creating safer, more resilient, and more beautiful cities for everyone.
Gate Valve for Natural Gas An Essential Component in Infrastructure