Repairs to manholes include:

Repairs to manholes often focus on ensuring that the structure is level and properly aligned with the surrounding road or surface. Raising the frame and cover to grade is a key part of this maintenance, as it prevents issues such as water pooling around the manhole, which can lead to erosion, settlement, or even structural damage over time. Additionally, a properly raised and aligned frame and cover enhances safety by preventing tripping hazards for pedestrians and damage to vehicles.

Adjusting alignment, while important, typically pertains to ensuring that the manhole's orientation doesn’t inhibit its function or allow for accumulation of debris. Correcting cavitation damages is more related to issues within the piping and flow dynamics rather than the manhole structure itself. Tightening packing deals with seals that prevent leakage but isn’t specifically a fundamental repair related to the structural height or positioning of the manhole. All these aspects are important in overall maintenance, but raising the frame and cover to grade is critical for functionality and safety.