Staff working on the Nairobi Expressway Project downed their tools on Wednesday, November 25, citing lack of payment from the contractors.
Most of the workers were drivers who claimed that they have now gone for months without payment.
The drivers numbering almost 50 operated tippers and trailers ferrying road construction machinery to the various sites.
The drivers have been working in two shifts, either day or night but had not been paid their rightful dues.
"We have not received our salaries, and when we push for payments the contractor sends us small amounts through mobile money transfer, usually Ksh5,000 or Ksh10,000 after we complain about lack of rent.
"There are some that have never been paid, we are given a flat rate of Ksh.1,000 a day. We have asked for more money because some of us operate heavy machinery," said one of the drivers.
The drivers claim that they have been placed on a two months probation as the contractor assesses their work in order to determine their pay rise.
The drivers are appealing to the contractor to pay their outstanding balances before they can resume work.
They also complained about lack of proper health insurance.
"The Chinese company advised us to continue working as they sort out the payment issue," added the driver.