Scottish Water engineers have repaired the 12 inch water main on Cleveden Road, near its junction with Great Western Road and Hyndland Road.
The main burst on Wednesday afternoon forcing the council to reduce the road from two lanes to one in each direction.
Great Western Road was partially blocked at Hyndland Road as engineers worked to repair the leak, causing major delays for drivers.
Delays were compounded by drivers using alternative West End routes to avoid the Erskine Bridge which is undergoing renovation works.
No local water supplies were affected. The road was re-opened to traffic earlier today.
A spokesman for Scottish Water said: “The repair of the main has been more complex than anticipated, due to the close proximity of other utilities’ infrastructure, and took longer than expected.
“We apologise for
any inconvenience to road-users and thank them for their patience and understanding.”
The water authority is upgrading more than 20 miles of pipes in parts of Glasgow and Bishopbriggs.
The project is being carried out on stretches of mains which have been affected by bursts in the past in a bid to reduce risk.
Up to 23,000 properties were affected by a burst in the north of Glasgow earlier this year. The problem cut off homes in Maryhill and in Bearsden.