George Parsonage, a volunteer with the Glasgow Humane Society, has pinpointed cracks and deterioration in stonework at several sections of the river's quay wall.
The 69-year-old identified an area on the north bank at Lancefield Quay where stonework is in need of repair, as well as cracks in the quay wall near the Glasgow Bridge, at the bottom of Jamaica Street.
He will now pass his findings on to Glasgow City Council.
He said: "These quay walls go right back to early Victorian times. Maybe they're just old. There are a lot of sections getting done just now."
Residents near the collapsed section of walkway expressed fears for their homes after the quay wall, grass verge and pathway crumbled into the river just west of the Kingston Bridge.
Days earlier, the same section of path along the River Clyde at Anderson Quay was cordoned off by the council after reports it had become unstable.