Extreme wind loading applies above what height?

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Multiple Choice

Extreme wind loading applies above what height?

Extreme wind loading is the higher wind force used in design once you’re above a certain height, because winds are stronger and gusts have a bigger effect up higher. In typical OSP design practice, that height is 18.3 meters (60 feet) above grade. So above this height, you apply extreme wind loading to account for the increased loads on poles, anchors, and attachments. The other options don’t match the standard threshold (9 m or 12 m are too low, and 24 inches is far too small), so the 18.3 m (60 ft) threshold is the appropriate cutoff.

Extreme wind loading is the higher wind force used in design once you’re above a certain height, because winds are stronger and gusts have a bigger effect up higher. In typical OSP design practice, that height is 18.3 meters (60 feet) above grade. So above this height, you apply extreme wind loading to account for the increased loads on poles, anchors, and attachments. The other options don’t match the standard threshold (9 m or 12 m are too low, and 24 inches is far too small), so the 18.3 m (60 ft) threshold is the appropriate cutoff.

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