Double Hulls Cause Spills

oil tanker off FranceThe Impending Disasters in Tankers

“By far the single most important cause of tanker spillage and tankerman deaths is hull structural failure, often abetted by advanced corrosion. No other cause comes close. Leaks into segregated ballast tanks have been particularly devastating. With the more complex structure, the drastically increased maintenance burden of double hulls, and the deterioration in structural standards (see Chapter 5), there is every reason to believe that hull structural failure will be even more dominant in the future that it has in the past.

The quote above and the table below are from”The Impending Disasters in Tankers” by Jack Devanney.

Note: one of the vessels listed is the Erika- the upended tanker in the picture above. There are many articles.about that spill’s effects on the Brittany coast.

Total annual spillage versus single biggest spill in liters

  • 1995 8,517,000 5,880,000 69% Sea Prince
  • 1996 86,781,000 84,400,000 97% Sea Empress
  • 1997 90,875,000 29,800,000 33% Evoikos
  • 1998 1,844,000 1,100,000 60% Maritza Sayalero
  • 1999 38,556,000 33,000,000 85% Erika
  • 2000 10,943,000 8,230,000 75% Natuna Sea
  • 2001 16,902,000 12,800,000 76% Ife
  • 2002 84,189,000 82,000,000 97% Prestige
  • 2003 35,224,000 35,200,000 99% Tasman Spirit