In 1937, increased log driving resulted in the need for a new sorting station. That year was a record year: 13 million logs were floated down the Ume River and the workforce amounted to 500 men. In 1967, yet another sorting station was put into use.
As of 11 December 1980, the era of log driving on Ume River came to an end.
Ön bridge was built in 1915. It was a suspension bridge that was torn down in the 1970s, when a new concrete bridge was built.
Between 1998 and 2001, the 700-metre-long Kolbäcksbron bridge was built.
In addition to the buildings and sorting station, the island also has a now defunct sawmill, a joinery factory, a sewage treatment works and new buildings for the water department Umeva staff.
The 1900s brought to the island single-family homes by the village, parts of the sorting station, and homes for workers.