	"Murmansk" is long overall and between perpendiculars, and has a moulded beam of . Fully laden, the icebreaker draws of water. While her official Russian Maritime Register of Shipping ice class is "Icebreaker6", "Murmansk"s hull and propulsion units are strengthened to meet the requirements for "Icebreaker7", a higher ice class intended for icebreaking operations in the Arctic.