In 1884, an iron lighthouse was set up at the end the breakwater of Rijeka’s port (formerly breakwater of Maria Theresa). Due to the subsidence of the breakwater, the lighthouse was moved to Mlaka at the end of the 19th century. However, in 1933, it was moved for the third time and this time it was built as a four-storey lighthouse building as well as strengthened with reinforced concrete. The last change occurred in 2002, when the building gained another floor for the Coastal Radio Station.
The lighthouse consists of eight rings stacked on each other. At the top there is a lantern room with an optical apparatus, containing the lamp and the lenses. The central part of the apparatus is connected to a timer. Every two minutes, the optical apparatus, consisting of eight lenses, makes a full circle, which means that the light appears every 15 seconds in the form of an alternating occurrence of red and white light. The light is visible from a distance of approximately 33 kilometres or 17.8 nautical miles. Today, the lighthouse is fully automated and an integral part of the cityscape.
Valorization:The lighthouse is now harder visible from the sea becouse it is surrounded by buildings and city lights . It doesn't have permanent crew, and the light has a white flash every 10 seconds. In the lighthouse is radio station for communication with ships.
DARI, JU 51, kutija 173.
Karmelić, Jakov; Golob, Ivana; Smokvina, Miljenko, Bijeli bljesak 10 sekundi (Riječki svjetionik na Mlaci), članak u objav