SEA CALCULATOR

Air draft clearance

Air draft clearance worksheet for bridge legs.

Charted vertical clearance (m)

Clearance datum above CD (m)

Predicted tide (m)

Air draft (m)

Required margin (m)

Clearance ≈ 3.90 m

Meets required margin.

Label for this result (optional)

Estimate only, from a standard published method. Check against your ship's data, the official publications and your company procedures.

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