Tshepo Mokwena, 37, was arrested in 2016 for the rapes committed along the bridge and in nearby bushes between 2006 and 2014. He had been on the run for nearly 10 years.
His sentences will each run concurrently.
On Wednesday last week Mokwena was convicted of four rape charges as well as assault and robbery. He was sentenced on Friday and he has 14 days to appeal against his sentence.
Temba police spokesperson Constable Herman Moremi said there were initially eight cases against Mokwena.