The works on the 35-mile canal, which has a history dating back over 220 years, will be completed in March and will see the Trust's team of staff and volunteers carry out repairs on bridges and canal banks.
The programme includes draining the canal between Brecon Basin and Brynich Lock to keep the canal watertight at the most northern point, grouting work on the Llan-Brynean Bridge and leak investigation and concrete channel repairs just north of Goytre Wharf at Llanover.
Already completed this winter are repairs at Baylis Bridge, while channel repairs are due to be completed in mid-February at Park y Brain south of Goytre Wharf.