What type of maintenance hole contains an end wall entrance only?

The type of maintenance hole that contains an end wall entrance only is designated as Type L and J. This classification is significant in the context of outside plant design, as it addresses specific configurations that are appropriate for different installation and maintenance scenarios.

Maintenance holes, or manholes, are critical for facilitating access to underground utilities and infrastructure, such as telecommunications conduits and fiber optics. The design and configuration of these structures can vary depending on factors such as location, accessibility needs, and the lay of the utilities being housed.

Type L and J maintenance holes are specifically designed with an end wall entrance to optimize the space and make access more convenient for certain maintenance operations where lateral access is not necessary. This design can help streamline the connection and maintenance of cables as they enter or exit the structure. Understanding the variations in maintenance hole types is essential for effective planning and deployment of outside plant networks, ensuring accessibility while minimizing potential disruption to the surrounding environment.