The man, who was working on a building site in The Manor, in Sheffield, was forced to jump as his vehicle overturned into an excavation when he swerved to avoid pedestrians in his path.
The driver’s employer – Nottingham contractor FG Construction – was also fined in relation to the 2006 incident.
Prosecutors said the man had remained off work for several months because of his injuries.
Bellway, which controlled the site, was found guilty of failing to ensure appropriate traffic routes.
In addition to the fine, the Sheffield Crown Court today ordered it pay £11,000 in costs.
FG Construction was fined £7,500 with £8,500 costs.
Health and Safety Executive inspector Stephen Hargreaves said: "The driver was forced over the edge of an unprotected excavation after Bellway Homes failed to segregate the traffic route from pedestrians crossing the site.
"This incident could have easily been avoided had there been proper safety measures in place."
Both firms had pleaded guilty to breaches of safety.