What is the maximum height for pavement lips to allow for water runoff?

The maximum height for pavement lips to allow for water runoff being set at 3 inches is based on engineering standards that aim to effectively manage drainage and prevent water pooling on surfaces. A lip of this height is sufficient to direct water away from pavement and into drainage systems without posing a trip hazard or obstructing pedestrian movement.

When the pavement lip exceeds this height, particularly beyond 3 inches, it can create complications in water management. Heights greater than 3 inches can lead to an increased risk of water accumulation, which not only affects safety but can also lead to potential structural damage to adjacent areas. This aligns with best practices in urban design and road construction, where proper drainage is crucial to maintaining both the longevity of the pavement and the safety of its users. Additionally, staying within this height threshold helps in maintaining compliance with relevant local codes and standards that aim to ensure public safety and effective water management.