Seven CFA vehicles from Wollert, Plenty, Epping and Craigieburn were on scene.
Upon arrival, crews observed a person that had fallen around eight metres into a trench.
MFB, Ambulance Victoria, SES and Victoria Police were also on scene.
The incident was listed as under control at 8.45am.
SES Nillumbik Unit responded as part of the multi-agency technical rescue crew.
Crews entered the trench using a secure ladder to provide support to the patient.
CFA crews prepared to conduct a steep angle rescue operation, however the patient was able to self-extricate.
The patient self-extricated with support from an onsite crane mechanism at 9.08am and was handed over to paramedics.
A stop was issued on the incident at 9.10am and was handed over to Victoria Police and WorkSafe.