A footbridge being installed over the M8 at Hillington has been delayed after it was discovered sub-standard concrete had been used.

More work is required on the concrete foundations of the structure which will need to completed before the new steel arch deck can be lifted into position.

This is the third delay to the project after engineers found concrete foundations are too weak and now the concrete bases have to be ripped out and rebuilt.

Tests carried out by contractor, Graham Construction, discovered concrete cast in the piers and bases was below industry standards.