Archaeological finds in the area, including such items as bone tools, cave bear bones, altars to water gods, and an altar to the goddess Adsaluta and god Savus indicate that it has a long history of human occupation. Radeče was first mentioned in written documents dating to 1297. The town was granted market rights in 1338. Until 1918, the town was part of the Austrian monarchy, in the Gurkfeld district, one of the 11 Bezirkshauptmannschaften in the province of Carniola. In 1925, Radeče was formally given town status by a decree issued by King Alexander. In 1994, it became the seat of the Municipality of Radeče.
An old one-archiron road bridge links the town center of Radeče with an old railway station on the other side of the Sava. It was built in the time of Austria–Hungary and originally linked the crown lands of Carniola and Styria. It was designed by the Czech architect Jan Vladimír Hráský. Its construction started in September 1893 and was completed in August 1894. It was open for traffic in June 1894. The riveted bridge is long and wide and originally had a bearing strength of, but was reinforced after World War II. Its steel construction was made by the Griedl company from Vienna, whereas its supporting foundations were made by the builder Tršek from Šmarjeta. Since 1980, when a staircase was added to it on the left bank, it has been used only by pedestrians and cyclists. A new concrete road bridge across the Sava in Radeče stands near Hotemež. It is long and wide. It was constructed by the Ingrad corporation and was solemnly opened in December 1980.
Weixelstein Castle
Weixelstein Castle stands east of Radeče at Pot na Brod no. 23. It is a four-winged two-story structure with an arcade courtyard. The building mainly dates from the 16th century, and the courtyard from the 17th century. Some wooden ceilings are preserved in the interior. The castle park originally had a geometric pattern, but was redesigned in a landscaped style in the 18th century. The castle's 16th-century owner Johann von Weixelstein sold it to Christoph von Raumschussl in 1595, after which it was owned by the Zetschker family, the Augustinians of Ljubljana, Franz Johann von Amigoni, Anton Gollmayer, the Plusk family, and Ludwig Guttmannsthal-Benvenuti. It was purchased by the Ljubljana-based Daughters of Charity of Saint Vincent de Paul in 1926. The nuns were evicted by German forces during the Second World War. After the war, the property was nationalized and converted into a reform school.
Economy
The community's development is closely connected to the Sava River because it used to be an important traffic route for water transport. The confluence of the Sava and Savinja in nearby Zidani Most gave Radeče a role of the central rafting port. This tradition is preserved by modern Radeče rafters, who nurture memories of the customs of their ancestors at the annual event Rafting Days on the Sava. Radeče has been renowned for its paper industry, and has modern foundations for development in its rich cultural heritage and unspoiled nature. After the paper producer entered bankruptcy proceedings in April 2012, a new company was established in June 2012.