Sister ship “Great Land” once suffered cracking of the hull while in service on the Tacoma to Alaska run.
“Thousand footer” ore carriers crack hulls nearly every season on the run from Lake Superior down to Lake Erie.
There is a channel called the rock cut that can snag these big girls. There goes the captain’s bonus for the year...
Note open areas on stern for RORO truck cargo access. Many ferry accidents attributed to rough seas are related to failure of these points.
http://memorieshop.com/Greatland/Swan-Island-2007.jpg
http://memorieshop.com/Greatland/index.html
http://memorieshop.com/Greatland/tote.pdf