This is the dramatic moment a driver leapt from a cement mixer after its brakes failed, causing it to crash down a mountainside.

Jayford Melanio was on his way to Olongapo when he spotted the truck slowly rolling downhill on a curved road in Bataan, the Philippines.

Dashcam footage shows the frantic trucker standing at the doorway, steering the wheel toward the cliff before jumping off the lorry on August 8.

Two motorists passing on the opposite lane were nearly hit but managed to accelerate away just in time to avoid being struck by the out-of-control industrial vehicle.

The driver can be seen rolling on the asphalt upon impact, while the mixer truck crashed into a parked white container van before hitting a roadside eatery.

The roof of the shop collapsed as the truck continued accelerating down the rocky slope.

The Alpha Team of New Cabalan Fire and Rescue quickly responded, providing first aid on-site.

Local media reported that the driver and two diners sustained minor injuries. One diner was transported to a hospital for further treatment and was discharged the same day.