When inmates worked at a place distant from the prison and were
unable to return to the prison after work, they stayed at temporary quarters. In
constructing Central Road connecting Abashiri to Sapporo, more than 1,000 inmates were sent to
construction sites for the 8 months from April through November 1891. Every time a road section
was completed, inmates moved to the next construction site and built sleeping quarters. The
temporary quarters were called “a traveling prison” and were made of logs. Inmates
dug the ground to a depth of 60 - 90cm and hammered in wooden boards to erect vertical walls.
Inside the quarters, there was an earthen floor in the center and a toilet at the end of the
room. The toilet and other parts of the room were not partitioned, so the inmates were under
guard all the time. Logs were nailed to the bed for inmates to use as pillows. For bedclothes,
each inmate had a thin kashiwabuton, a thin quilt that inmates folded in half and slept
inside. To prevent escape, there was only one doorway. In the days of Hokkaido’s
modern development, huts similar to temporary quarters were used at construction sites and were
called tako-beya, sleeping quarters for forced laborers.