Calculate gangway length and angle requirements for tidal range and ADA compliance
Input Parameters
Results
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Min Gangway Length
ft
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Max Angle (Low Tide)
degrees
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Min Angle (High Tide)
degrees
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ADA Compliance
Reference
ADA max slope: 1:3 (20°) for gangways
Non-ADA acceptable: up to 30°
Length = √(horizontal² + vertical²) + 2 ft margin
Account for full tidal range in calculations