The Department of Regional Development has said they do not know when they will be able to switch on the new traffic lights at Pennyburn roundabout.
It had been expected that work on the roundabout would be completed and the lights switched on last week.
However severe wet weather and stormy conditions has led to yet another delay.
Work on the lights had been stalled earlier this year
A spokesperson from the DRD said today: “The recent continuous wet weather conditions has prevented the completion of surfacing works on the Culmore Road approach to the roundabout. TransportNI is unable at this stage to confirm a ‘Switch On’ date for the part time signals, but remains optimistic that the signals will become operational later this month.”