SAFETY CONSIDERATIONS

A. Drainage system components, especially all ponds/basins, must be designed to protect the safety of all persons coming in contact with the drainage system. The following criteria shall apply:

1. The side slopes of all basins must not exceed 5H:1V, and will be as gradual as practicable to prevent accidental falls into the basin for slope stability and ease of maintenance.

2. Side slopes of open channels will not be steeper than 3:1.

3. Velocities throughout the surface drainage system will be controlled to safe levels taking into consideration rates and depths of flow.

4. All wet detention basins will have a level safety ledge at least 12 feet in width and one foot below the normal water depth, and other design and landscaping features as may be needed to provide for protection of the public.