Numerous serious problems are brought on by improper manhole maintenance. Periodical checking of manholes is necessary to maintain proper hygiene in our society. Sometimes manhole cover is damage or not in place. During the monsoon, manholes are not visible to predators due to the waterlogged conditions in the region around them, and pedestrians fall into these unsuspected, open manholes. Additionally, improperly closed manholes cause serious damage and vicious injuries to people. In order to control these issues, a secure manhole management system is required. In this article, different monitoring systems used to alert to open manholes are discussed and a proposed alert system to indicate the status of manholes.