The operation limits of a Europe underwater treasures sunken medallion B2 1740T barge have to be evaluated by several safety criteria.A practical approach is based on the global strength criteria evaluation by equivalent beam barge model and equivalent rules waves, with several heading angle cases.There are considered the Danube river navigation conditions and eventually a costal route, too.The barge is considered with superdry baseball top three loading cases and the numerical analyses are done by P_QSW eigen program.The numerical results, hull beam sectional efforts, are evaluated by shipbuilding rules global strength criteria and the allowed operation conditions are obtained.