The modern-day road infrastructure is incomplete without proper and strategic manholes that serve the purpose of drainage, managing utilities, among other things. Whether on the pedestrian lanes or roads, manholes are important.

While manholes are part of the road infrastructure, leaving them open is not only a safety hazard but also unaesthetic. This is why there are different types of manhole covers and frames manufactured for keeping manholes protected.

We at Dutco Tennant LLC distribute a variety of manhole cover products that are engineered with the highest quality materials. In this blog, we are deepening your understanding of different types of manhole covers available and what benefits they offer.

 

Manhole Covers

 

A manhole cover is a detachable plate that serves as the lid over a manhole, which is an opening wide enough for a person to pass through, providing access to an underground vault or pipe. Its purpose is to prevent accidental falls and to restrict entry to unauthorized individuals and objects.

 

Types of Manholes

Manholes are generally classified into three types: shallow, normal, and deep. The selection of a particular manhole type for a given location depends on the dimensions of the sewer or stormwater line, as well as the intended purpose of the manhole.


 

Role of Manhole Covers & Frames in Our Infrastructure

Manhole covers help in keeping the roads and lanes safe from any accidents. Open manholes or manhole covers that aren’t the right fit can lead to falls and other hazardous injuries.

Covers that are used for manholes for sewers and drainage, ensures the area remains free from odor or air pollution. Furthermore, manhole covers also keeps the roads and lanes organized as different utilities run through underground ways such as telecommunications, electrical conduits, etc.

Manhole covers also offer an easy way to access these utilities as they are designed with firm handles to lift. While the use of manhole covers doesn’t come to mind immediately, they definitely serve quite a few critical roles in our road infrastructures.

 

Different Types of Manhole Covers Available

Looking at the uses of manhole covers, the choice of them must be done after careful considerations. Here we list some of the commonly available manhole covers offering specific benefits and fitting in specific applications.

 

Cast Iron Covers:

Known to be robust and durable, manhole covers made from cast iron are able to take on the heavy-loads of vehicles and even resist the impact of harsh environmental conditions.

Because of their durability and heavy-load bearing capacity, a cast iron manhole cover is suited for use in industrial settings, roads and even in urban areas where traffic load is high.

 

Recessed Covers:

Unlike the material, the recessed manhole covers are more about the design, that’s what makes them distinguished from other types. This type of cover is engineered in such a way that it fits evenly with the surrounding surface.

Recessed covers offer very organized results without blocking any access to underground infrastructure. Pedestrian areas, parks, landscaping projects, are some of the application areas for recessed covers.

 

Ductile Iron Covers:

Ductile iron is a material that comes with the strength of cast iron and more flexibility than them. Its unique characteristics make them resistant to cracking and breakage.

Because of their robustness, a ductile iron manhole cover is used in high traffic areas and also in high load bearing areas such as highways or airports.

 

Hinged Covers:

If there is a demand for covers that gives access to underground utilities without removing the cover entirely then hinged covers are the perfect option. With their pivoting mechanism, they allow easy access to them.

This type of manhole cover allows for conducting frequent inspections and maintenance work. Also, due to the reduced need to remove the cover, they are a safer choice than other covers.

We at Dutco Tennant LLC work with a trusted and expert network of manufacturers to offer large-scale projects with different types of manhole covers. If you are looking for a reliable manhole covers supplier to partner with then be sure to consider our name.

Our promise to deliver you the best manhole cover solutions remains unwavering. Connect with us to discuss your project needs.