Workers on the Kwame Nkrumah interchange in Takoradi in the Western Region have declared a strike over poor working conditions.
The workers say their daily wage of GHS19 is not enough.
Vice-president Mahamudu Bawumia cut the sod for the $2-billion SinoHydro-funded project, being executed by Messrs SinoHydro Corporation Limited.
It commenced in September 2020.
The first tier of the project (26.5metres) will be a roundabout to improve access to the Takoradi Market Circle through the Liberation Road while the second tier (80-metre span) would link the Agona Nkwanta â€“ Cape Coast road with the third tier (288-metre span) expected to link the Sekondi bypass with the Axim road.
The project is expected to be completed in 30 months.