Police were called following reports of a possible unexploded bomb at the former Dalmarnock power station, which is undergoing a multi-million pound make-over.
Builders carrying out excavation work made the discovery at around 11.55am yesterday and raised the alarm.
Police closed off the area and Explosive Ordnance Disposal (EOD) experts were called out to remove the device. It is not known what the weapon was.
The Dalmarnock area was heavily bombed during the Second World War.
The former power station site was bought by urban regeneration company Clyde Gateway in 2009. The site is being cleaned up for builders for new homes or commercial units.
Dalmarnock is set to be the location for the athletes' village when Glasgow hosts the Commonwealth Games in 2014.