Manhole Collar

A manhole collar is a component used in the construction and maintenance of manholes. It is a circular or rectangular structure that is placed around the opening of a manhole to provide support and stability. The collar is typically made of concrete or other durable materials and is designed to withstand the weight and pressure exerted on the manhole cover.

The main purpose of a manhole collar is to prevent the manhole cover from sinking or shifting due to the weight of vehicles or other external forces. It helps distribute the load evenly across the surrounding area, reducing the risk of damage to the manhole structure.

In addition to providing support, manhole collars also serve as a barrier to prevent debris, water, and other materials from entering the manhole. This helps maintain the integrity of the manhole and ensures that it remains accessible for inspection, maintenance, and repair purposes.

Overall, manhole collars play a crucial role in the proper functioning and longevity of manholes by providing stability, support, and protection.