What is the minimum height for Type III barricades?

Answer: C — 5 feet

The minimum height for Type III barricades is indeed 5 feet. Type III barricades are specifically designed for use in traffic control and work zones, offering enhanced visibility and durability. Their height is standardized to ensure they are noticeable to drivers and pedestrians, particularly in situations where clear delineation of work zones and hazards is crucial for safety. A height of 5 feet helps to ensure that the barricade is easily seen over vehicles and other potential obstructions, reducing the risk of accidents in work zones. This height, along with their reflective materials, fulfills the requirement for effective traffic control and provides a clear message to road users regarding the presence of a work activity. In contrast, shorter heights would not provide sufficient visibility or deterrence at a distance, detracting from their purpose and increasing potential safety hazards.