The Great Neva or Bolshaya Neva is the largest armlet of the river Neva. It starts near the Spit of Vasilievsky Island . The Great Neva is 3.5 kilometres (2.2 mi) long; the width is from 200 to 400 metres and the depth up to 12.8 metres (42 ft). Its tributaries are Fontanka, Moyka and Novo-Admiralteysky Canal. There are two bridges across Great Neva: Palace Bridge and Blagoveshchensky Bridge.