Both men had been charged with wilful obstruction of a highway and both Oliver and Ruggles were found guilty.
Ruggles failed to attend the court hearing, but was found guilty despite his absence.
Both Oliver and Ruggles were fined £200 each, and must pay court costs of £300 each.
Oliver and Ruggles prevented work from taking place by deliberately walking in the road and causing an obstruction. They refused to move from the road, and caused a delay of one hour and 47 minutes over a distance of 750m. Oliver and Ruggles were both arrested for wilful obstruction of the highway shortly after.
“We hope that these convictions and the fines handed to Oliver and Ruggles will act as a message that whilst we will facilitate peaceful protest, we will take action where necessary and bring people to court.”