The fire has been contained by firefighters by breaking up the pile using heavy machinery.
The fire remains 40x40m in size but has reduced in height to 1.5m.
A total of 19 units from ACT Fire & Rescue and ACT Rural Fire Service are on site, including multiple Compressed Air Foam (CAFS) units.
Forecast weather conditions is expected to result in smoke from the fire spreading across the ACT region overnight.
With smoke visible, people are urged to only call Emergency Triple Zero (000) if they see a fire.
ACT Health advises that people with asthma, other chronic respiratory and/or chronic cardiac diseases should not perform vigorous exercise and should stay inside if affected by the smoke. People with asthma in particular should continue their medication and consult their general practitioner if they have any difficulties.