Examples covering tidal datums, clearance calculations, and extreme water levels.

A container ship with a maximum draft of 12.5 meters is scheduled to enter a port where the charted depth (measured from Mean Lower Low Water, MLLW) is 14.0 meters. The predicted tide at the time of entry is 0.8 meters above MLLW. Calculate the static Under-Keel Clearance (UKC).

A new suspension bridge spans a harbor entrance. The bridge deck has an elevation of 60.0 meters relative to Mean Sea Level (MSL). The Mean Higher High Water (MHHW) datum is 2.2 meters above MSL. A cruise ship with a total air draft (height from waterline to highest mast) of 55.0 meters needs to pass under the bridge at MHHW. Calculate the available vertical clearance.

A coastal engineer is establishing the Design Water Level (DWL) for a new breakwater. The Mean Higher High Water (MHHW) is +1.8 meters relative to a local datum. The 100-year storm surge prediction is an additional 2.5 meters. To account for climate change over the structure's 50-year design life, a sea-level rise (SLR) allowance of 0.4 meters must be included. Determine the final Design Water Level relative to the local datum.